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116-449: There are several parts to the PPM system: PPM original concept requires the base station connection to a telephone line in order to transmit panelists' listening data from the PPM to the collection point. The PPM 360, introduced in 2010, uses cellular telephone technology to accomplish this without the need for a wired telephone service. Additionally, it has a motion sensor which detects when

232-460: A French speaker . Based on a difference in use of language, a person may automatically form judgments about another person's wealth , education , social status , character or other traits, which may lead to discrimination. This has led to public debate surrounding localisation theories , likewise with overall diversity prevalence in numerous nations across the West . Linguistic discrimination

348-415: A mixed strategy when playing against players assigned the same color as their own. The experimenters then added a cooperation option to the game, and found that disadvantaged players usually cooperated with each other, while advantaged players usually did not. They state that while the equilibria reached in the original hawk-dove game are predicted by evolutionary game theory , game theory does not explain

464-603: A radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone ). The radio frequency link establishes a connection to the switching systems of a mobile phone operator , which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones (or "cell phones") in North America. In addition to telephony , digital mobile phones support

580-636: A 1979 consultation on the issue, the United States commission on civil rights defined religious discrimination in relation to the civil rights which are guaranteed by the Fourteenth Amendment . Whereas religious civil liberties, such as the right to hold or not to hold a religious belief, are essential for Freedom of Religion (in the United States as secured by the First Amendment ), religious discrimination occurs when someone

696-400: A basic mobile phone, which is only capable of voice calling and text messaging. Feature phones and basic mobile phones tend to use a proprietary, custom-designed software and user interface . By contrast, smartphones generally use a mobile operating system that often shares common traits across devices. The critical advantage that modern cellular networks have over predecessor systems is

812-434: A customer unit could use. A cellular network mobile phone system gets its name from dividing the service area into many small cells, each with a base station with (for example) a useful range on the order of a kilometer (mile). These systems have dozens or hundreds of possible channels allocated to them. When a subscriber is using a given channel for a telephone connection, that frequency is unavailable for other customers in

928-489: A different race or ethnicity . Modern variants of racism are often based in social perceptions of biological differences between peoples. These views can take the form of social actions , practices or beliefs, or political systems in which different races are ranked as inherently superior or inferior to each other, based on presumed shared inheritable traits, abilities, or qualities. It has been official government policy in several countries, such as South Africa during

1044-418: A few sets of radio channels (frequencies). Once these few channels were in use by customers, no further customers could be served until another user vacated a channel. It would be impractical to give every customer a unique channel since there would not be enough bandwidth allocated to the mobile service. As well, technical limitations such as antenna efficiency and receiver design limit the range of frequencies

1160-644: A full-fledged project with management support, engineers at Arbitron focused on improving the encoding and detection methodology and miniaturization into a hand-held device. Additional capabilities such as motion detection were added later on. In 2005, EE Times, as part of their Great Minds, Great Ideas project, profiled Mr. Kolessar as the "Inventor of the Portable People Meter". Arbitron , as well as other firms that provide research and consulting services to radio stations, have begun publishing numerous studies based on analysis of PPM data. Although

1276-540: A large portion of Europe, was subjected to discrimination under Adolf Hitler and his Nazi party between 1933 and 1945. They were forced to live in ghettos, wear an identifying star of David on their clothes, and sent to concentration and death camps in rural Germany and Poland, where they were to be tortured and killed, all because of their Jewish religion. Many laws (most prominently the Nuremberg Laws of 1935) separated those of Jewish faith as supposedly inferior to

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1392-545: A lesbian sexual orientation (by means of mentioning an engagement in a rainbow organisation or by mentioning one's partner name) lowers employment opportunities in Cyprus and Greece but overall, it has no negative effect in Sweden and Belgium. In the latter country, even a positive effect of revealing a lesbian sexual orientation is found for women at their fertile ages. Besides these academic studies, in 2009, ILGA published

1508-523: A mobile device, such as a smartphone. The term "app" is a shortening of the term "software application". A common data application on mobile phones is Short Message Service (SMS) text messaging. The first SMS message was sent from a computer to a mobile phone in 1992 in the UK while the first person-to-person SMS from phone to phone was sent in Finland in 1993. The first mobile news service, delivered via SMS,

1624-539: A name's fluency is subtle, small and subject to significantly changing norms. The Anti-discrimination laws of most countries allow and make exceptions for discrimination based on nationality and immigration status. The International Convention on the Elimination of All Forms of Racial Discrimination (CERD) does not prohibit discrimination by nationality, citizenship or naturalization but forbids discrimination "against any particular nationality". Discrimination on

1740-480: A number of basic needs for an individual such as collective purpose, social contact, status, and activity. A person with a disability is often found to be socially isolated and work is one way to reduce his or her isolation. In the United States, the Americans with Disabilities Act mandates the provision of equality of access to both buildings and services and is paralleled by similar acts in other countries, such as

1856-401: A number of distinguishing features. The International Telecommunication Union measures those with Internet connection, which it calls Active Mobile-Broadband subscriptions (which includes tablets, etc.). In the developed world, smartphones have now overtaken the usage of earlier mobile systems. However, in the developing world, they account for around 50% of mobile telephony . Feature phone

1972-540: A number of politicians challenged Arbitron and the PPM's accuracy in measuring minority listening. Although the makers of the PPM claim that it is more accurate than traditional alternatives like handwritten logs or wired meters, critics have raised issues about its accuracy. Another sales argument is that the device is immune to human forgetfulness, something that can be an issue in studies that rely on self-reporting by test subjects. Some radio producers have seen their audience numbers plummet in cities where Arbitron adopted

2088-493: A person's name is one of the six things they focus on most. France has made it illegal to view a person's name on a résumé when screening for the initial list of most qualified candidates. Great Britain, Germany, Sweden, and the Netherlands have also experimented with name-blind summary processes. Some apparent discrimination may be explained by other factors such as name frequency. The effects of name discrimination based on

2204-501: A problem due to the design of the phone, the quality of the cellular network and compression algorithms used in long-distance calls . Audio quality can be improved using a VoIP application over WiFi . Cellphones have small speakers so that the user can use a speakerphone feature and talk to a person on the phone without holding it to their ear. The small speakers can also be used to listen to digital audio files of music or speech or watch videos with an audio component, without holding

2320-609: A report based on research carried out by Daniel Ottosson at Södertörn University College in Stockholm, Sweden . This research found that of the 80 countries around the world that continue to consider homosexuality illegal, five carry the death penalty for homosexual activity, and two do in some regions of the country. In the report, this is described as "State sponsored homophobia". This happens in Islamic states, or in two cases regions under Islamic authority. On February 5, 2005,

2436-451: A salient social group. This is a comparative definition. An individual need not be actually harmed in order to be discriminated against. He or she just needs to be treated worse than others for some arbitrary reason. If someone decides to donate to help orphan children, but decides to donate less, say, to children of a particular race out of a racist attitude, he or she will be acting in a discriminatory way even if he or she actually benefits

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2552-464: A single hand, since most thumbs cannot reach the entire screen surface; they may need to be shifted around in the hand, held in one hand and manipulated by the other, or used in place with both hands. Due to design advances, some modern smartphones with large screen sizes and "edge-to-edge" designs have compact builds that improve their ergonomics, while the shift to taller aspect ratios have resulted in phones that have larger screen sizes whilst maintaining

2668-517: A single platform. There are a huge variety of apps, including video games , music products and business tools. Up until that point, smartphone application distribution depended on third-party sources providing applications for multiple platforms, such as GetJar , Handango , Handmark , and PocketGear . Following the success of the App Store, other smartphone manufacturers launched application stores, such as Google's Android Market (later renamed to

2784-429: A small microchip called a Subscriber Identity Module or SIM card , in order to function. The SIM card is approximately the size of a small postage stamp and is usually placed underneath the battery in the rear of the unit. The SIM securely stores the service-subscriber key (IMSI) and the K i used to identify and authenticate the user of the mobile phone. The SIM card allows users to change phones by simply removing

2900-544: A survey for the University of Kent , England, 29% of respondents stated that they had suffered from age discrimination. This is a higher proportion than for gender or racial discrimination. Dominic Abrams , social psychology professor at the university, concluded that ageism is the most pervasive form of prejudice experienced in the UK population. According to UNICEF and Human Rights Watch , caste discrimination affects an estimated 250 million people worldwide and

3016-471: A telephone service area, which is divided up into 'cells'. Each cell uses a different set of frequencies from neighboring cells, and will typically be covered by three towers placed at different locations. The cell towers are usually interconnected to each other and the phone network and the internet by wired connections. Due to bandwidth limitations each cell will have a maximum number of cell phones it can handle at once. The cells are therefore sized depending on

3132-557: A term for such hatred based upon one's sexual orientation is often called homophobia . Many continue to hold negative feelings towards those with non-heterosexual orientations and will discriminate against people who have them or are thought to have them. People of other uncommon sexual orientations also experience discrimination. One study found its sample of heterosexuals to be more prejudiced against asexual people than against homosexual or bisexual people. Employment discrimination based on sexual orientation varies by country. Revealing

3248-652: A variety of other services , such as text messaging , multimedia messaging , email , Internet access (via LTE , 5G NR or Wi-Fi ), short-range wireless communications ( infrared , Bluetooth ), satellite access ( navigation , messaging connectivity ), business applications, payments (via NFC ), multimedia playback and streaming ( radio , television ), digital photography , and video games . Mobile phones offering only basic capabilities are known as feature phones ( slang : "dumbphones" ); mobile phones that offer greatly advanced computing capabilities are referred to as smartphones . The first handheld mobile phone

3364-469: A very thin carbon microphone". Early predecessors of cellular phones included analog radio communications from ships and trains. The race to create truly portable telephone devices began after World War II, with developments taking place in many countries. The advances in mobile telephony have been traced in successive "generations", starting with the early zeroth-generation ( 0G ) services, such as Bell System 's Mobile Telephone Service and its successor,

3480-515: A young adult job applicant than an older job applicant. In Europe, Stijn Baert, Jennifer Norga, Yannick Thuy and Marieke Van Hecke, researchers at Ghent University , measured comparable ratios in Belgium. They found that age discrimination is heterogeneous by the activity older candidates undertook during their additional post-educational years. In Belgium, they are only discriminated if they have more years of inactivity or irrelevant employment. In

3596-412: Is a term typically used as a retronym to describe mobile phones which are limited in capabilities in contrast to a modern smartphone . Feature phones typically provide voice calling and text messaging functionality, in addition to basic multimedia and Internet capabilities, and other services offered by the user's wireless service provider . A feature phone has additional functions over and above

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3712-513: Is being used or not) using a technique known as multilateration to calculate the differences in time for a signal to travel from the mobile phone to each of several cell towers near the owner of the phone. The movements of a mobile phone user can be tracked by their service provider and, if desired, by law enforcement agencies and their governments. Both the SIM card and the handset can be tracked. China has proposed using this technology to track

3828-470: Is denied "equal protection under the law, equality of status under the law, equal treatment in the administration of justice, and equality of opportunity and access to employment, education, housing, public services and facilities, and public accommodation because of their exercise of their right to religious freedom". Sexism is a form of discrimination based on a person's sex or gender. It has been linked to stereotypes and gender roles , and may include

3944-457: Is mainly prevalent in parts of Asia (India, Sri Lanka, Bangladesh, Pakistan, Nepal, Japan) and Africa. As of 2011 , there were 200 million Dalits or Scheduled Castes (formerly known as "untouchables") in India. Discrimination against people with disabilities in favor of people who are not is called ableism or disablism . Disability discrimination, which treats non-disabled individuals as

4060-403: Is not the case. The United Nations stance on discrimination includes the statement: "Discriminatory behaviors take many forms, but they all involve some form of exclusion or rejection." The United Nations Human Rights Council and other international bodies work towards helping ending discrimination around the world. Ageism or age discrimination is discrimination and stereotyping based on

4176-468: The 5G NR (5G New Radio) standard. 5G can be implemented in low-band, mid-band or high-band millimeter-wave, with download speeds that can achieve gigabit-per-second (Gbit/s) range, aiming for a network latency of 1 ms. This near-real-time responsiveness and improved overall data performance are crucial for applications like online gaming , augmented and virtual reality , autonomous vehicles , IoT, and critical communication services. Smartphones have

4292-611: The Equality Act 2010 in the UK. Linguistic discrimination (also called glottophobia, linguicism and languagism) is unfair treatment of people based upon their use of language and the characteristics of their speech, such as their first language , their accent , the perceived size of their vocabulary (whether or not the speaker uses complex and varied words), their modality , and their syntax . For example, an Occitan speaker in France will probably be treated differently from

4408-509: The IRIN issued a reported titled "Iraq: Male homosexuality still a taboo". The article stated, among other things that honor killings by Iraqis against a gay family member are common and given some legal protection. In August 2009, Human Rights Watch published an extensive report detailing torture of men accused of being gay in Iraq , including the blocking of men's anuses with glue and then giving

4524-648: The Improved Mobile Telephone Service . These 0G systems were not cellular , supported a few simultaneous calls, and were very expensive. The first handheld cellular mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing 2 kilograms (4.4 lb). The first commercial automated cellular network ( 1G ) analog was launched in Japan by Nippon Telegraph and Telephone in 1979. This

4640-888: The Philippines . A pilot project in Bali was launched in 2011 by the International Finance Corporation and an Indonesian bank, Bank Mandiri . Mobile payments were first trialled in Finland in 1998 when two Coca-Cola vending machines in Espoo were enabled to work with SMS payments. Eventually, the idea spread and in 1999, the Philippines launched the country's first commercial mobile payments systems with mobile operators Globe and Smart . Some mobile phones can make mobile payments via direct mobile billing schemes, or through contactless payments if

4756-649: The WCDMA standard. This was followed by 3.5G or 3G+ enhancements based on the high-speed packet access (HSPA) family, allowing UMTS networks to have higher data transfer speeds and capacity. 3G is able to provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers. This ensures it can be applied to mobile Internet access, VoIP , video calls, and sending large e-mail messages, as well as watching videos, typically in standard-definition quality. By 2009, it had become clear that, at some point, 3G networks would be overwhelmed by

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4872-532: The apartheid era. Discriminatory policies towards ethnic minorities include the race-based discrimination against ethnic Indians and Chinese in Malaysia After the Vietnam War , many Vietnamese refugees moved to Australia and the United States, where they faced discrimination. Regional or geographic discrimination is a form of discrimination that is based on the region in which a person lives or

4988-450: The internet of things (IoT), fixed wireless access , and multimedia streaming (including music, video, radio , and television ). Deployment of fifth-generation ( 5G ) cellular networks commenced worldwide in 2019. The term "5G" was originally used in research papers and projects to denote the next major phase in mobile telecommunication standards beyond the 4G / IMT-Advanced standards. The 3GPP defines 5G as any system that adheres to

5104-599: The screen . Depending on the device's type and design, the screen fills most or nearly all of the space on a device's front surface. Many smartphone displays have an aspect ratio of 16:9 , but taller aspect ratios became more common in 2017. Screen sizes are often measured in diagonal inches or millimeters ; feature phones generally have screen sizes below 90 millimetres (3.5 in). Phones with screens larger than 130 millimetres (5.2 in) are often called " phablets ." Smartphones with screens over 115 millimetres (4.5 in) in size are commonly difficult to use with only

5220-453: The southern or northern regions of the United States. It is often accompanied by discrimination that is based on accent, dialect, or cultural differences. Religious discrimination is valuing or treating people or groups differently because of what they do or do not believe in or because of their feelings towards a given religion . For instance, the Jewish population of Germany, and indeed

5336-529: The Christian population. Restrictions on the types of occupations that Jewish people could hold were imposed by Christian authorities. Local rulers and church officials closed many professions to religious Jews, pushing them into marginal roles that were considered socially inferior, such as tax and rent collecting and moneylending , occupations that were only tolerated as a " necessary evil ". The number of Jews who were permitted to reside in different places

5452-595: The GSM was used by over 5 billion people in over 220 countries. The GSM (2G) has evolved into 3G, 4G and 5G. The standardization body for GSM started at the CEPT Working Group GSM (Group Special Mobile) in 1982 under the umbrella of CEPT. In 1988, ETSI was established, and all CEPT standardization activities were transferred to ETSI. Working Group GSM became Technical Committee GSM. In 1991, it became Technical Committee SMG (Special Mobile Group) when ETSI tasked

5568-493: The Google Play Store), RIM's BlackBerry App World , or Android-related app stores like Aptoide , Cafe Bazaar , F-Droid , GetJar , and Opera Mobile Store . In February 2014, 93% of mobile developers were targeting smartphones first for mobile app development. As of 2022, the top five manufacturers worldwide were Samsung (21%), Apple (16%), Xiaomi (13%), Oppo (10%), and Vivo (9%). From 1983 to 1998, Motorola

5684-537: The Nielsen Company for television ratings. After losing to Nielsen Company, Arbitron went back to its core business—radio ratings. Dr. Cohen's idea lay dormant until 1992, when Dr. Richard Schlunt and Dr. Patrick Nunally approached Arbitron. Meeting with Ronald Kolessar the Director of Technology, Dr. Cohen and others presented a new variation of the idea—selectively embed a code into the frequency spectrum of

5800-443: The PPM and artificially lowering the radio station's listenership. Nielsen introduced eCBET in 2016, which they touted as an enhancement for the tone encoding process. Consequently, there have been some complaints from some in the radio industry that the upgrade caused the audio to sound harsh and unlistenable. Mobile phone A mobile phone or cell phone is a portable telephone that can make and receive calls over

5916-493: The PPM can be traced to a brainstorming session at Arbitron in November 1988. Concerns over the forthcoming move from analog video to high-definition digital television had engineers concerned that the technology then in use would become obsolete overnight. Drawing upon his experience in testing laboratories, Dr. Gerald Cohen proposed embedding an identifying signal in the audio and later decoding it. Dr. Cohen argued that audio

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6032-479: The PPM delivers empirical, verifiable audience measurement data, these results are sometimes at odds with the results generated with the diary method, which asks listeners to note each change of their radio dial. Some minority diarists may have used their diaries as a way to support and show loyalty for stations that targeted their communities. Around 2008, the Spanish Radio Association (SRA) and

6148-456: The PPM is being worn by an active person. After 30 minutes of inactivity, the PPM goes into a low-power "sleep" mode in order to conserve battery life. The newer generation NPM-1 meter was introduced in 2021. According to FCC filings, the meter uses Bluetooth Low Energy to transmit collected data to a gateway or the user's smartphone, while the accompanying gateway includes a Quectel EG21-G 4G LTE module as data uplink. The original concept for

6264-468: The PPM. Arbitron settled with five states that brought discrimination suits and promised more representative sampling. Radio host Delilah blamed the device for "horrendous" damage to her measured audience numbers. One potential culprit raised by critics is the psychoacoustic masking techniques used to embed the signal; Delilah, for example, has suggested that the masking causes the signal to get lost in certain styles of music, thus not getting picked up by

6380-714: The SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device, provided that this is not prevented by a SIM lock . The first SIM card was made in 1991 by Munich smart card maker Giesecke & Devrient for the Finnish wireless network operator Radiolinja . A hybrid mobile phone can hold up to four SIM cards, with a phone having a different device identifier for each SIM Card. SIM and R-UIM cards may be mixed together to allow both GSM and CDMA networks to be accessed. From 2010 onwards, such phones became popular in emerging markets, and this

6496-421: The UK, the total number of mobile phones overtook the number of houses in 1999. Today, mobile phones are globally ubiquitous, and in almost half the world's countries, over 90% of the population owns at least one. A handheld mobile radio telephone service was envisioned in the early stages of radio engineering. In 1917, Finnish inventor Eric Tigerstedt filed a patent for a "pocket-size folding telephone with

6612-533: The United Nations Sustainable Development Goal 5 is also aimed at ending all forms of discrimination on the basis of gender and sex. One's sexual orientation is a "predilection for homosexuality, heterosexuality, or bisexuality". Like most minority groups, homosexuals and bisexuals are vulnerable to prejudice and discrimination from the majority group. They may experience hatred from others because of their sexuality;

6728-578: The ability to transfer cash payments by secure SMS text message. Kenya's M-PESA mobile banking service, for example, allows customers of the mobile phone operator Safaricom to hold cash balances which are recorded on their SIM cards. Cash can be deposited or withdrawn from M-PESA accounts at Safaricom retail outlets located throughout the country and can be transferred electronically from person to person and used to pay bills to companies. Branchless banking has also been successful in South Africa and

6844-550: The abnormally high traffic. Capacity was further increased when phone companies implemented digital networks. With digital, one frequency can host multiple simultaneous calls. Additionally, short-range Wi-Fi infrastructure is often used by smartphones as much as possible as it offloads traffic from cell networks on to local area networks. The common components found on all mobile phones are: Low-end mobile phones are often referred to as feature phones and offer basic telephony. Handsets with more advanced computing ability through

6960-522: The balance in favor of those who are believed to be current or past victims of discrimination. These attempts have often been met with controversy, and sometimes been called reverse discrimination . The term discriminate appeared in the early 17th century in the English language. It is from the Latin discriminat- 'distinguished between', from the verb discriminare , from discrimen 'distinction', from

7076-480: The baseband audio stream and use digital signal processing in a small wearable device to recover the embedded code buried in what a person watches or hears. Convinced that the concept could be achieved, Mr. Kolessar obtained approval from Arbitron's management to undertake a fast-track effort to determine feasibility. Lacking the internal expertise to do so, additional outside help from the company, Martin Marietta ,

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7192-461: The basis of nationality is usually included in employment laws (see above section for employment discrimination specifically). It is sometimes referred to as bound together with racial discrimination although it can be separate. It may vary from laws that stop refusals of hiring based on nationality, asking questions regarding origin, to prohibitions of firing, forced retirement, compensation and pay, etc., based on nationality. Discrimination on

7308-590: The basis of nationality may show as a "level of acceptance" in a sport or work team regarding new team members and employees who differ from the nationality of the majority of team members. In the GCC states, in the workplace, preferential treatment is given to full citizens, even though many of them lack experience or motivation to do the job. State benefits are also generally available for citizens only. Westerners might also get paid more than other expatriates. Racial and ethnic discrimination differentiates individuals on

7424-493: The basis of perceived statuses based on ethnic, racial, gender or religious categories. It involves depriving members of one group of opportunities or privileges that are available to members of another group. Discriminatory traditions, policies, ideas, practices and laws exist in many countries and institutions in all parts of the world, including some, where such discrimination is generally decried. In some places, countervailing measures such as quotas have been used to redress

7540-430: The basis of real and perceived racial and ethnic differences and leads to various forms of the ethnic penalty . It can also refer to the belief that groups of humans possess different behavioral traits corresponding to physical appearance and can be divided based on the superiority of one race over another. It may also mean prejudice , discrimination, or antagonism directed against other people because they are of

7656-670: The belief that one sex or gender is intrinsically superior to another. Extreme sexism may foster sexual harassment , rape , and other forms of sexual violence . Gender discrimination may encompass sexism and is discrimination toward people based on their gender identity or their gender or sex differences. Gender discrimination is especially defined in terms of workplace inequality . It may arise from social or cultural customs and norms. Intersex persons experience discrimination due to innate, atypical sex characteristics . Multiple jurisdictions now protect individuals on grounds of intersex status or sex characteristics . South Africa

7772-961: The benefits of different calling plans. For example, a particular plan might provide for cheaper local calls, long-distance calls, international calls, or roaming. The mobile phone has been used in a variety of diverse contexts in society. For example: In 1998, one of the first examples of distributing and selling media content through the mobile phone was the sale of ringtones by Radiolinja in Finland. Soon afterwards, other media content appeared, such as news, video games, jokes, horoscopes, TV content and advertising. Most early content for mobile phones tended to be copies of legacy media , such as banner advertisements or TV news highlight video clips. Recently, unique content for mobile phones has been emerging, from ringtones and ringback tones to mobisodes , video content that has been produced exclusively for mobile phones. In many countries, mobile phones are used to provide mobile banking services, which may include

7888-469: The call, from detecting the presence of a handset in a service area, temporary assignment of a channel to a handset making a call, interface with the land-line side of the network to connect to other subscribers, and collection of billing information for the service. The automation systems can control the "hand off" of a customer handset moving between one cell and another so that a call in progress continues without interruption, changing channels if required. In

8004-399: The clock rate (generally given in multiples of hertz ) but also the memory hierarchy also greatly affects overall performance. Because of these problems, the performance of mobile phone CPUs is often more appropriately given by scores derived from various standardized tests to measure the real effective performance in commonly used applications. One of the main characteristics of phones is

8120-407: The committee with UMTS (3G). In addition to transmitting voice over digital signals, the 2G network introduced data services for mobile, starting with SMS text messages, then expanding to Multimedia Messaging Service (MMS), and mobile internet with a theoretical maximum transfer speed of 384 kbit/s (48 kB/s). In 2001, the third-generation ( 3G ) was launched in Japan by NTT DoCoMo on

8236-563: The commuting patterns of Beijing city residents. In the UK and US, law enforcement and intelligence services use mobile phones to perform surveillance operations. Discrimination Discrimination is the process of making unfair or prejudicial distinctions between people based on the groups, classes, or other categories to which they belong or are perceived to belong, such as race , gender , age , species , religion , physical attractiveness or sexual orientation . Discrimination typically leads to groups being unfairly treated on

8352-435: The concept of frequency reuse allowing many simultaneous telephone conversations in a given service area. This allows efficient use of the limited radio spectrum allocated to mobile services, and lets thousands of subscribers converse at the same time within a given geographic area. Former systems would cover a service area with one or two powerful base stations with a range of up to tens of kilometers' (miles), using only

8468-479: The concept only to socially salient groups is arbitrary, as well as raising issues of determining which groups would count as socially salient. The issue of which groups should count has caused many political and social debates. Based on realistic-conflict theory and social-identity theory, Rubin and Hewstone have highlighted a distinction among three types of discrimination: Discrimination, in labeling theory , takes form as mental categorization of minorities and

8584-443: The definition of discrimination should be. Some philosophers have argued that discrimination should only refer to wrongful or disadvantageous treatment in the context of a socially salient group (such as race, gender, sexuality etc.) within a given context. Under this view, failure to limit the concept of discrimination would lead to it being overinclusive; for example, since most murders occur because of some perceived difference between

8700-415: The earliest mobile phone systems by contrast, all control was done manually; the customer would search for an unoccupied channel and speak to a mobile operator to request connection of a call to a landline number or another mobile. At the termination of the call the mobile operator would manually record the billing information. Mobile phones communicate with cell towers that are placed to give coverage across

8816-733: The early- to mid-1970s, a time period that focused on under-representation and action policies intended to remedy the effects of past discrimination in both government and the business world. Article 15 of the Constitution of India prohibits discrimination against any citizen on grounds of caste, religion, sex, race or place of birth etc. Similarly, the Constitution of India guarantees several rights to all citizens irrespective of gender, such as right to equality under Article 14, right to life and personal liberty under Article 21. Indian Penal Code , 1860 (Section 153 A) - Criminalises

8932-554: The emergence of cooperation in the disadvantaged group. Citing earlier psychological work of Matthew Rabin , they hypothesize that a norm of differing entitlements emerges across the two groups, and that this norm could define a "fairness" equilibrium within the disadvantaged group. The psychological impact of discrimination on health refers to the cognitive pathways through which discrimination impacts mental and physical health in members of marginalized , subordinate, and low-status groups (e.g. racial and sexual minorities). Research on

9048-496: The end of 2009. In 2014, there were more than seven billion mobile phone subscribers worldwide, a number that is expected to keep growing. Mobile phones are used for a variety of purposes, such as keeping in touch with family members, for conducting business, and in order to have access to a telephone in the event of an emergency. Some people carry more than one mobile phone for different purposes, such as for business and personal use. Multiple SIM cards may be used to take advantage of

9164-531: The ergonomics associated with smaller 16:9 displays. Liquid-crystal displays are the most common; others are IPS , LED , OLED , and AMOLED displays. Some displays are integrated with pressure-sensitive digitizers, such as those developed by Wacom and Samsung , and Apple's " 3D Touch " system. In sound, smartphones and feature phones vary little. Some audio-quality enhancing features, such as Voice over LTE and HD Voice , have appeared and are often available on newer smartphones. Sound quality can remain

9280-420: The expected usage density, and may be much smaller in cities. In that case much lower transmitter powers are used to avoid broadcasting beyond the cell. In order to handle the high traffic, multiple towers can be set up in the same area (using different frequencies). This can be done permanently or temporarily such as at special events or in disasters. Cell phone companies will bring a truck with equipment to host

9396-458: The experimental laboratory", and that neither classical game theory nor neoclassical economics can explain this. In 2002, Varoufakis and Shaun Hargreaves-Heap ran an experiment where volunteers played a computer-mediated, multiround hawk-dove game . At the start of each session, each participant was assigned a color at random, either red or blue. At each round, each player learned the color assigned to his or her opponent, but nothing else about

9512-486: The first quarter of 2016, the top smartphone developers worldwide were Samsung , Apple and Huawei ; smartphone sales represented 78 percent of total mobile phone sales. For feature phones as of 2016 , the top-selling brands were Samsung, Nokia and Alcatel . Mobile phones are considered an important human invention as they have been one of the most widely used and sold pieces of consumer technology. The growth in popularity has been rapid in some places, for example, in

9628-471: The grounds of someone's age. It is a set of beliefs, norms, and values which used to justify discrimination or subordination based on a person's age. Ageism is most often directed toward elderly people, or adolescents and children. Age discrimination in hiring has been shown to exist in the United States. Joanna Lahey, professor at The Bush School of Government and Public Service at Texas A&M , found that firms are more than 40% more likely to interview

9744-599: The growth of bandwidth-intensive applications, such as streaming media . Consequently, the industry began looking to data-optimized fourth-generation ( 4G ) technologies, with the promise of speed improvements up to tenfold over existing 3G technologies. The first publicly available LTE service was launched in Scandinavia by TeliaSonera in 2009. In the 2010s, 4G technology has found diverse applications across various sectors, showcasing its versatility in delivering high-speed wireless communication, such as mobile broadband,

9860-569: The influence of European companies had significantly decreased due to fierce competition from American and Asian companies, to where most technical innovation had shifted. Apple and Google, both of the United States, also came to dominate mobile phone software. The world's largest individual mobile operator by number of subscribers is China Mobile , which has over 902 million mobile phone subscribers as of June 2018 . Over 50 mobile operators have over ten million subscribers each, and over 150 mobile operators had at least one million subscribers by

9976-414: The local cell and in the adjacent cells. However, cells further away can re-use that channel without interference as the subscriber's handset is too far away to be detected. The transmitter power of each base station is coordinated to efficiently service its own cell, but not to interfere with the cells further away. Automation embedded in the customer's handset and in the base stations control all phases of

10092-433: The majority group. In such cases it is intended to remove discrimination that minority groups may already face. Reverse discrimination can be defined as the unequal treatment of members of the majority groups resulting from preferential policies, as in college admissions or employment, intended to remedy earlier discrimination against minorities. Conceptualizing affirmative action as reverse discrimination became popular in

10208-738: The men laxatives. Although gay marriage has been legal in South Africa since 2006, same-sex unions are often condemned as "un-African". Research conducted in 2009 shows 86% of black lesbians from the Western Cape live in fear of sexual assault. A number of countries, especially those in the Western world , have passed measures to alleviate discrimination against sexual minorities, including laws against anti-gay hate crimes and workplace discrimination. Some have also legalized same-sex marriage or civil unions in order to grant same-sex couples

10324-431: The opponent. Hargreaves-Heap and Varoufakis found that the players' behavior within a session frequently developed a discriminatory convention, giving a Nash equilibrium where players of one color (the "advantaged" color) consistently played the aggressive "hawk" strategy against players of the other, "disadvantaged" color, who played the acquiescent "dove" strategy against the advantaged color. Players of both colors used

10440-406: The people he discriminates against by donating some money to them. Discrimination also develops into a source of oppression , the action of recognizing someone as 'different' so much that they are treated inhumanly and degraded. This moralized definition of discrimination is distinct from a non-moralized definition - in the former, discrimination is wrong by definition, whereas in the latter, this

10556-418: The perpetrator and the victim, many murders would constitute discrimination if the social salience requirement is not included. Thus this view argues that making the definition of discrimination overinclusive renders it meaningless. Conversely, other philosophers argue that discrimination should simply refer to wrongful disadvantageous treatment regardless of the social salience of the group, arguing that limiting

10672-399: The phone and the point of sale support near field communication (NFC). Enabling contactless payments through NFC-equipped mobile phones requires the co-operation of manufacturers, network operators, and retail merchants. Mobile phones are commonly used to collect location data. While the phone is turned on, the geographical location of a mobile phone can be determined easily (whether it

10788-567: The phone close to the ear. The average phone battery lasts two–three years at best. Many of the wireless devices use a Lithium-Ion (Li-Ion) battery, which charges 500–2500 times, depending on how users take care of the battery and the charging techniques used. It is only natural for these rechargeable batteries to chemically age, which is why the performance of the battery when used for a year or two will begin to deteriorate. Battery life can be extended by draining it regularly, not overcharging it, and keeping it away from heat. Mobile phones require

10904-519: The region in which a person was born. It differs from national discrimination because it may not be based on national borders or the country in which the victim lives, instead, it is based on prejudices against a specific region of one or more countries. Examples include discrimination against Chinese people who were born in regions of the countryside that are far away from cities that are located within China, and discrimination against Americans who are from

11020-440: The relation between discrimination and health became a topic of interest in the 1990s, when researchers proposed that persisting racial/ethnic disparities in health outcomes could potentially be explained by racial/ethnic differences in experiences with discrimination. Although the bulk of the research tend to focus on the interactions between interpersonal discrimination and health, researchers studying discrimination and health in

11136-424: The right to be free from government sponsored social discrimination. Due to a belief in the capacity to perceive pain or suffering shared by all animals, abolitionist or vegan egalitarianism maintains that the interests of every individual (regardless of their species), warrant equal consideration with the interests of humans, and that not doing so is speciesist . Philosophers have debated as to how inclusive

11252-571: The same definition. Linguistic discrimination is culturally and socially determined due to preference for one use of language over others. Discrimination based on a person's name may also occur, with researchers suggesting that this form of discrimination is present based on a name's meaning, its pronunciation, its uniqueness, its gender affiliation, and its racial affiliation. Research has further shown that real world recruiters spend an average of just six seconds reviewing each résumé before making their initial "fit/no fit" screen-out decision and that

11368-508: The same protections and benefits as opposite-sex couples. In 2011, the United Nations passed its first resolution recognizing LGBT rights. Reverse discrimination is discrimination against members of a dominant or majority group, in favor of members of a minority or historically disadvantaged group. This discrimination may seek to redress social inequalities under which minority groups have had less access to privileges enjoyed by

11484-552: The second-generation ( 2G ) digital cellular technology was launched in Finland by Radiolinja on the GSM standard. This sparked competition in the sector as the new operators challenged the incumbent 1G network operators. The GSM standard is a European initiative expressed at the CEPT ("Conférence Européenne des Postes et Telecommunications", European Postal and Telecommunications conference). The Franco-German R&D cooperation demonstrated

11600-445: The standard of 'normal living', results in public and private places and services, educational settings, and social services that are built to serve 'standard' people, thereby excluding those with various disabilities. Studies have shown that disabled people not only need employment in order to be provided with the opportunity to earn a living but they also need employment in order to sustain their mental health and well-being. Work fulfils

11716-401: The technical feasibility, and in 1987, a Memorandum of Understanding was signed between 13 European countries that agreed to launch a commercial service by 1991. The first version of the GSM standard had 6,000 pages. The IEEE and RSE awarded Thomas Haug and Philippe Dupuis the 2018 James Clerk Maxwell medal for their contributions to the first digital mobile telephone standard. In 2018,

11832-681: The use of stereotype . This theory describes difference as deviance from the norm, which results in internal devaluation and social stigma that may be seen as discrimination. It is started by describing a "natural" social order. It is distinguished between the fundamental principle of fascism and social democracy. The Nazis in 1930s-era Germany and the pre-1990 Apartheid government of South Africa used racially discriminatory agendas for their political ends. This practice continues with some present day governments. Economist Yanis Varoufakis (2013) argues that "discrimination based on utterly arbitrary characteristics evolves quickly and systematically in

11948-440: The use of language that promotes discrimination or violence against people on the basis of race, caste, sex, place of birth, religion, gender identity, sexual orientation or any other category. Important UN documents addressing discrimination include: Social theories such as egalitarianism assert that social equality should prevail. In some societies, including most developed countries, each individual's civil rights include

12064-699: The use of native software applications are known as smartphones . The first GSM phones and many feature phones had NOR flash memory, from which processor instructions could be executed directly in an execute in place architecture and allowed for short boot times. With smartphones, NAND flash memory was adopted as it has larger storage capacities and lower costs, but causes longer boot times because instructions cannot be executed from it directly, and must be copied to RAM memory first before execution. Mobile phones have central processing units (CPUs), similar to those in computers, but optimised to operate in low power environments. Mobile CPU performance depends not only on

12180-536: The verb discernere (corresponding to "to discern"). Since the American Civil War the term "discrimination" generally evolved in American English usage as an understanding of prejudicial treatment of an individual based solely on their race, later generalized as membership in a certain socially undesirable group or social category. Before this sense of the word became almost universal, it

12296-433: Was a synonym for discernment, tact and culture as in "taste and discrimination", generally a laudable attribute; to "discriminate against" being commonly disparaged. Moral philosophers have defined discrimination using a moralized definition. Under this approach, discrimination is defined as acts, practices, or policies that wrongfully impose a relative disadvantage or deprivation on persons based on their membership in

12412-485: Was at first considered an act of racism. In the mid-1980s, linguist Tove Skutnabb-Kangas captured the idea of language-based discrimination as linguicism, which was defined as "ideologies and structures which are used to legitimize, effectuate, and reproduce unequal divisions of power and resources (both material and non-material) between groups which are defined on the basis of language". Although different names have been given to this form of discrimination, they all hold

12528-412: Was attributed to the desire to obtain the lowest calling costs. When the removal of a SIM card is detected by the operating system, it may deny further operation until a reboot. Feature phones have basic software platforms. Smartphones have advanced software platforms. Android OS has been the best-selling OS worldwide on smartphones since 2011. A mobile app is a computer program designed to run on

12644-587: Was demonstrated by Martin Cooper of Motorola in New York City on 3 April 1973, using a handset weighing c. 2 kilograms (4.4 lbs). In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion; enough to provide one for every person on Earth. In

12760-555: Was followed in 1981 by the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway, and Sweden. Several other countries then followed in the early to mid-1980s. These first-generation ( 1G ) systems could support far more simultaneous calls but still used analog cellular technology. In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. In 1991,

12876-507: Was launched in Finland in 2000, and subsequently many organizations provided "on-demand" and "instant" news services by SMS. Multimedia Messaging Service (MMS) was introduced in March 2002. The introduction of Apple's App Store for the iPhone and iPod Touch in July 2008 popularized manufacturer-hosted online distribution for third-party applications (software and computer programs) focused on

12992-459: Was less likely to undergo as drastic a change in content and technology as would video, hence any technology developed would likely not become obsolete in a few years. The concept was presented to the company and also written up in a short concept document. A preliminary investigation was undertaken, but the technology was never given serious consideration. The concept was written off and forgotten, as Arbitron had larger issues in its competition with

13108-725: Was limited; they were concentrated in ghettos and banned from owning land. In Saudi Arabia, non- Muslims are not allowed to publicly practice their religions and they cannot enter Mecca and Medina . Furthermore, private non-Muslim religious gatherings might be raided by the religious police . In Maldives, non-Muslims living and visiting the country are prohibited from openly expressing their religious beliefs, holding public congregations to conduct religious activities, or involving Maldivians in such activities. Those expressing religious beliefs other than Islam may face imprisonment of up to five years or house arrest, fines ranging from 5,000 to 20,000 rufiyaa ($ 320 to $ 1,300), and deportation. In

13224-508: Was market leader in mobile phones. Nokia was the market leader in mobile phones from 1998 to 2012. In Q1 2012, Samsung surpassed Nokia, selling 93.5 million units as against Nokia's 82.7 million units. Samsung has retained its top position since then. Aside from Motorola, European brands such as Nokia, Siemens and Ericsson once held large sway over the global mobile phone market, and many new technologies were pioneered in Europe. By 2010,

13340-402: Was sought. Facing cutbacks in the defense industry, Martin Marietta agreed to take on the commercial project, relinquishing all rights to the technology they would develop. Engineers at Martin Marietta decided that the best approach was to employ the principle of psychoacoustics to mask the embedded code signal, an approach described in U.S. patent 5,450,490 . Now that Dr. Cohen's idea was

13456-420: Was the first country to explicitly add intersex to legislation, as part of the attribute of 'sex'. Australia was the first country to add an independent attribute, of 'intersex status'. Malta was the first to adopt a broader framework of 'sex characteristics', through legislation that also ended modifications to the sex characteristics of minors undertaken for social and cultural reasons. Global efforts such as

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