Mobitex is an OSI based open standard , national public access wireless packet-switched data network. Mobitex puts great emphasis on safety and reliability with its use by military, police, firefighters and ambulance services. It was developed in the beginning of the 1980s by the Swedish Televerket Radio. From 1988, the development took place in Eritel, a joint-venture between Ericsson and Televerket, later on as an Ericsson subsidiary. Mobitex became operational in Sweden in 1986.
66-555: In the mid-1990s, Mobitex gained consumer popularity by providing two-way paging network services. It was the first wireless network to provide always on, wireless push email services such as RadioMail and Inter@ctive Paging . It is also used by the first model of Research in Motion's BlackBerry , and PDAs such as the Palm VII . During 9/11 and the 2005 hurricane rescue and clean-up operations, Mobitex proved itself to be
132-574: A knowledge worker in performing research and making decisions, including steps such as: Stewart (2001) argues that transformation of information into knowledge is critical, lying at the core of value creation and competitive advantage for the modern enterprise. In a biological framework, Mizraji has described information as an entity emerging from the interaction of patterns with receptor systems (eg: in molecular or neural receptors capable of interacting with specific patterns, information emerges from those interactions). In addition, he has incorporated
198-472: A Mobitex-based gateway software developed in the early nineties by Ian Lane and Andy Lambert. Despite the competitive nature of the vehicle recovery market in the UK, motoring organisations were persuaded to co-operate and make a standard of the format. This resulted in a major saving for the eight hundred independent garages used by the motoring organisations. The Turbo Dispatch Standards Group (the official keepers of
264-435: A function must exist, even if it is not accessible for humans; A view surmised by Albert Einstein with the assertion that " God does not play dice ". Modern astronomy cites the mechanical sense of information in the black hole information paradox , positing that, because the complete evaporation of a black hole into Hawking radiation leaves nothing except an expanding cloud of homogeneous particles, this results in
330-441: A group of people. Chat rooms are often public, meaning that you are able to send a message and anyone can freely join the “room” and view the message as well as respond. As it relates to business, 75% of people believe in-person communication is critical. In-person interaction is useful for resolving problems more efficiently, generating long-term relationships, and resolving a problem or creating an opportunity quickly. 4 out of 6 of
396-456: A more continuous form. Information is not knowledge itself, but the meaning that may be derived from a representation through interpretation. The concept of information is relevant or connected to various concepts, including constraint , communication , control , data , form , education , knowledge , meaning , understanding , mental stimuli , pattern , perception , proposition , representation , and entropy . Information
462-434: A nutritional function. The cognitive scientist and applied mathematician Ronaldo Vigo argues that information is a concept that requires at least two related entities to make quantitative sense. These are, any dimensionally defined category of objects S, and any of its subsets R. R, in essence, is a representation of S, or, in other words, conveys representational (and hence, conceptual) information about S. Vigo then defines
528-553: A posed question. Whether the answer provides knowledge depends on the informed person. So a generalized definition of the concept should be: "Information" = An answer to a specific question". When Marshall McLuhan speaks of media and their effects on human cultures, he refers to the structure of artifacts that in turn shape our behaviors and mindsets. Also, pheromones are often said to be "information" in this sense. These sections are using measurements of data rather than information, as information cannot be directly measured. It
594-409: A situation. Two-way communication involves feedback from the receiver to the sender. This allows the sender to know the message was received accurately by the receiver. One person is the sender, which means they send a message to another person via face to face, email, telephone, etc. The other person is the receiver, which means they are the one getting the senders message. Once receiving the message,
660-398: A type of input to an organism or system . Inputs are of two kinds; some inputs are important to the function of the organism (for example, food) or system ( energy ) by themselves. In his book Sensory Ecology biophysicist David B. Dusenbery called these causal inputs. Other inputs (information) are important only because they are associated with causal inputs and can be used to predict
726-504: A very reliable and useful system for first responders. Mobitex is a packet-switched , narrowband , data-only technology mainly for short burst data. Mobitex channels are 12.5 kHz wide. In North America, Mobitex ran at 900 MHz , while in Europe it uses 400 - 450 MHz . The modulation scheme used is GMSK with a slotted aloha protocol at 8000 bit/s , although user throughput is typically around half of that. The network provided
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#1732783976711792-901: Is entropy . Entropy quantifies the amount of uncertainty involved in the value of a random variable or the outcome of a random process . For example, identifying the outcome of a fair coin flip (with two equally likely outcomes) provides less information (lower entropy) than specifying the outcome from a roll of a die (with six equally likely outcomes). Some other important measures in information theory are mutual information , channel capacity, error exponents , and relative entropy . Important sub-fields of information theory include source coding , algorithmic complexity theory , algorithmic information theory , and information-theoretic security . Applications of fundamental topics of information theory include source coding/ data compression (e.g. for ZIP files ), and channel coding/ error detection and correction (e.g. for DSL ). Its impact has been crucial to
858-434: Is a major concept in both classical physics and quantum mechanics , encompassing the ability, real or theoretical, of an agent to predict the future state of a system based on knowledge gathered during its past and present. Determinism is a philosophical theory holding that causal determination can predict all future events, positing a fully predictable universe described by classical physicist Pierre-Simon Laplace as "
924-504: Is a set that the sender and receiver of information must know before exchanging information. Digital information, for example, consists of building blocks that are all number sequences. Each number sequence represents a selection from its domain. The sender and receiver of digital information (number sequences) must know the domain and binary format of each number sequence before exchanging information. By defining number sequences online, this would be systematically and universally usable. Before
990-420: Is always conveyed as the content of a message. Information can be encoded into various forms for transmission and interpretation (for example, information may be encoded into a sequence of signs , or transmitted via a signal ). It can also be encrypted for safe storage and communication. The uncertainty of an event is measured by its probability of occurrence. Uncertainty is inversely proportional to
1056-532: Is an uncountable mass noun . Information theory is the scientific study of the quantification , storage , and communication of information. The field itself was fundamentally established by the work of Claude Shannon in the 1940s, with earlier contributions by Harry Nyquist and Ralph Hartley in the 1920s. The field is at the intersection of probability theory , statistics , computer science, statistical mechanics , information engineering , and electrical engineering . A key measure in information theory
1122-446: Is different from one-way communication in that two-way communication occurs when the receiver provides feedback to the sender. One-way communication is when a message flows from sender to receiver only, thus providing no feedback. Some examples of one-way communication are radio or television programs and listening to policy statements from top executives. Two-way communication is especially significant in that it enables feedback to improve
1188-472: Is estimated that the world's technological capacity to store information grew from 2.6 (optimally compressed) exabytes in 1986 – which is the informational equivalent to less than one 730-MB CD-ROM per person (539 MB per person) – to 295 (optimally compressed) exabytes in 2007. This is the informational equivalent of almost 61 CD-ROM per person in 2007. The world's combined technological capacity to receive information through one-way broadcast networks
1254-416: Is forecast to increase rapidly, reaching 64.2 zettabytes in 2020. Over the next five years up to 2025, global data creation is projected to grow to more than 180 zettabytes. Records are specialized forms of information. Essentially, records are information produced consciously or as by-products of business activities or transactions and retained because of their value. Primarily, their value is as evidence of
1320-451: Is log 2 (4/1) = 2 bits. A 2011 Science article estimates that 97% of technologically stored information was already in digital bits in 2007 and that the year 2002 was the beginning of the digital age for information storage (with digital storage capacity bypassing analogue for the first time). Information can be defined exactly by set theory: "Information is a selection from the domain of information". The "domain of information"
1386-422: Is mainly (but not only, e.g. plants can grow in the direction of the light source) a causal input to plants but for animals it only provides information. The colored light reflected from a flower is too weak for photosynthesis but the visual system of the bee detects it and the bee's nervous system uses the information to guide the bee to the flower, where the bee often finds nectar or pollen, which are causal inputs,
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#17327839767111452-578: Is not a member of a foreign government. It is meant for short-range communication using devices that mimic walkie-talkies. Family Radio Service (FRS) is also meant for short-range communication using devices that mimic walkie-talkies. Like the CB radio, the FRS does not require a license and can be used by anyone who is not a member of a foreign government. Instant messaging became wildly popular around 1996 and spread even more with AOL in 1997. The concept behind IM
1518-414: Is often processed iteratively: Data available at one step are processed into information to be interpreted and processed at the next step. For example, in written text each symbol or letter conveys information relevant to the word it is part of, each word conveys information relevant to the phrase it is part of, each phrase conveys information relevant to the sentence it is part of, and so on until at
1584-438: Is put to use when the business subsequently wants to identify the most popular or least popular dish. Information can be transmitted in time, via data storage , and space, via communication and telecommunication . Information is expressed either as the content of a message or through direct or indirect observation . That which is perceived can be construed as a message in its own right, and in that sense, all information
1650-465: Is that it is a way of quick communication between two people due to tools such as knowing when messages are seen or knowing when others are online. Many social media sites have integrated IM into their sites as ways to spread communication. Many social media sites have direct message or Private message . Called either PM or DM, where you can privately text one another from your social media account. Much different from Chat rooms . Chat rooms are messages to
1716-466: Is that most people now use their mobile devices to make calls and communicate with others instead of landline telephones. Computer networks are used to have two-way communication by having computers exchange data. Ways that this is possible is wired interconnects and wireless interconnects. Types of wired interconnects are Ethernets and fiber optic cables. Ethernets connect local devices through Ethernet cables. Fiber runs underground for long distances and
1782-426: Is the main source of Internet in most homes and businesses. Types of wireless interconnects include Wi-Fi and Bluetooth. The problem with these networks is that they don't have unlimited connection span. To expand the reach there are wide area interconnects such as satellite and cellular networks. Also, there are long-distance interconnects which need backhaul to move the data back and forth and last mile to connect
1848-469: The US (AMS). Two-way communication Two-way communication is a form of transmission in which both parties involved transmit information . Two-way communication has also been referred to as interpersonal communication . Common forms of two-way communication are: A cycle of communication and two-way communication are actually two different things. If we examine closely the anatomy of communication –
1914-435: The activities of the organization but they may also be retained for their informational value. Sound records management ensures that the integrity of records is preserved for as long as they are required. The international standard on records management, ISO 15489, defines records as "information created, received, and maintained as evidence and information by an organization or person, in pursuance of legal obligations or in
1980-504: The actual structure and parts – we will discover that a cycle of communication is not a two-way communication in its entirety. Meaning, two way communication is not as simple as one may infer. One can improve two-way or interpersonal communication by focusing on the eyes of the person speaking, making eye contact, watching body language, responding appropriately with comments, questions, and paraphrasing, and summarizing to confirm main points and an accurate understanding. Two-way communication
2046-419: The amount of information that R conveys about S as the rate of change in the complexity of S whenever the objects in R are removed from S. Under "Vigo information", pattern, invariance, complexity, representation, and information – five fundamental constructs of universal science – are unified under a novel mathematical framework. Among other things, the framework aims to overcome
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2112-401: The association between signs and behaviour. Semantics can be considered as the study of the link between symbols and their referents or concepts – particularly the way that signs relate to human behavior. Syntax is concerned with the formalism used to represent a message. Syntax as an area studies the form of communication in terms of the logic and grammar of sign systems. Syntax is devoted to
2178-427: The biological order and participating in the development of multicellular organisms, precedes by millions of years the emergence of human consciousness and the creation of the scientific culture that produced the chemical nomenclature. Systems theory at times seems to refer to information in this sense, assuming information does not necessarily involve any conscious mind, and patterns circulating (due to feedback ) in
2244-403: The chosen language in terms of its agreed syntax and semantics. The sender codes the message in the language and sends the message as signals along some communication channel (empirics). The chosen communication channel has inherent properties that determine outcomes such as the speed at which communication can take place, and over what distance. The existence of information about a closed system
2310-415: The context of some social situation. The social situation sets the context for the intentions conveyed (pragmatics) and the form of communication. In a communicative situation intentions are expressed through messages that comprise collections of inter-related signs taken from a language mutually understood by the agents involved in the communication. Mutual understanding implies that agents involved understand
2376-401: The effect of its past and the cause of its future ". Quantum physics instead encodes information as a wave function , which prevents observers from directly identifying all of its possible measurements . Prior to the publication of Bell's theorem , determinists reconciled with this behavior using hidden variable theories , which argued that the information necessary to predict the future of
2442-437: The exchanged digital number sequence, an efficient unique link to its online definition can be set. This online-defined digital information (number sequence) would be globally comparable and globally searchable. The English word "information" comes from Middle French enformacion/informacion/information 'a criminal investigation' and its etymon, Latin informatiō(n) 'conception, teaching, creation'. In English, "information"
2508-417: The final step information is interpreted and becomes knowledge in a given domain . In a digital signal , bits may be interpreted into the symbols, letters, numbers, or structures that convey the information available at the next level up. The key characteristic of information is that it is subject to interpretation and processing. The derivation of information from a signal or message may be thought of as
2574-464: The first public access wireless data communication services in North America. Subscriber services included electronic messaging with Cc capabilities to multiple recipients, combined with the ability to log on to any wireless or fixed terminal and receive stored mailbox messages. Mobitex was offered on over 30 networks on five continents. European Mobitex networks almost completely withered in
2640-448: The formation and development of an organism without any need for a conscious mind. One might argue though that for a human to consciously define a pattern, for example a nucleotide, naturally involves conscious information processing. However, the existence of unicellular and multicellular organisms, with the complex biochemistry that leads, among other events, to the existence of enzymes and polynucleotides that interact maintaining
2706-600: The frequency band, and the cost of the system. “Regardless of the type of system chosen, the one common feature is that all of the components must be compatible and work together to support a common purpose.” Amateur radio is used for entertainment and as a hobby by many groups of people. These individuals label themselves as “hams”. Amateur radios are also known to be a reliable means of communication when all other forms are not operating. In times of disaster, communication through Amateur radios has led to lives being saved. Citizens band radio (CB radio) can be used by anyone who
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2772-401: The idea of "information catalysts", structures where emerging information promotes the transition from pattern recognition to goal-directed action (for example, the specific transformation of a substrate into a product by an enzyme, or auditory reception of words and the production of an oral response) The Danish Dictionary of Information Terms argues that information only provides an answer to
2838-895: The irrecoverability of any information about the matter to have originally crossed the event horizon , violating both classical and quantum assertions against the ability to destroy information. The information cycle (addressed as a whole or in its distinct components) is of great concern to information technology , information systems , as well as information science . These fields deal with those processes and techniques pertaining to information capture (through sensors ) and generation (through computation , formulation or composition), processing (including encoding, encryption, compression, packaging), transmission (including all telecommunication methods), presentation (including visualization / display methods), storage (such as magnetic or optical, including holographic methods ), etc. Information visualization (shortened as InfoVis) depends on
2904-403: The issue of signs with the context within which signs are used. The focus of pragmatics is on the intentions of living agents underlying communicative behaviour. In other words, pragmatics link language to action. Semantics is concerned with the meaning of a message conveyed in a communicative act. Semantics considers the content of communication. Semantics is the study of the meaning of signs –
2970-411: The limitations of Shannon-Weaver information when attempting to characterize and measure subjective information. Information is any type of pattern that influences the formation or transformation of other patterns. In this sense, there is no need for a conscious mind to perceive, much less appreciate, the pattern. Consider, for example, DNA . The sequence of nucleotides is a pattern that influences
3036-551: The most important attributes of building a relationship cannot be achieved without the power of in-person, which requires a rich communication environment. Business executives believe in-person collaboration is critical for more than 50 percent of key business strategic and tactical business processes when engaging with colleagues, customers, or partners. The telephone is a device that is relatively easy to understand and use. The technological advances that we have today has made it very easy to connect instantly with others from all over
3102-438: The multi-faceted concept of information in terms of signs and signal-sign systems. Signs themselves can be considered in terms of four inter-dependent levels, layers or branches of semiotics : pragmatics, semantics, syntax, and empirics. These four layers serve to connect the social world on the one hand with the physical or technical world on the other. Pragmatics is concerned with the purpose of communication. Pragmatics links
3168-651: The network is operated by American Messaging Services, LLC (AMS) and remains operational. Mobitex in the UK was marketed by RAM Mobile Data, the UK part of which was purchased from BellSouth (USA) by Twenty First Century Ltd (John Camilleri and Adrian Nicolle) in 2000, that became Transcomm and was then purchased by BT (British Telecom) in 2004. The uses of Mobitex in the United Kingdom were all emergencies (blue light) services, couriers, vehicle telematics (logistics), vending (parking) and vehicle breakdown services (RAC, AA, Green Flag). All UK ambulance services used
3234-527: The network to dispatch crews and track progress. The London Metropolitan Police used Mobitex to access the police criminal record database whilst in field and in real time, revolutionary at the time. During the 7/7 terrorist attacks in London, the Transcomm Network was the only wireless network which kept running. Nearly all breakdowns to Green Flag UK service agents were sent using Turbo Dispatch ,
3300-436: The occurrence of a causal input at a later time (and perhaps another place). Some information is important because of association with other information but eventually there must be a connection to a causal input. In practice, information is usually carried by weak stimuli that must be detected by specialized sensory systems and amplified by energy inputs before they can be functional to the organism or system. For example, light
3366-594: The organization or to meet legal, fiscal or accountability requirements imposed on the organization. Willis expressed the view that sound management of business records and information delivered "...six key requirements for good corporate governance ...transparency; accountability; due process; compliance; meeting statutory and common law requirements; and security of personal and corporate information." Michael Buckland has classified "information" in terms of its uses: "information as process", "information as knowledge", and "information as thing". Beynon-Davies explains
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#17327839767113432-404: The other hand, when communication takes place between persons holding the same rank or position, it is called horizontal two-way communication. Two-way communication is represented in the following diagrams: There are many different types of two-way communication systems, and choosing which is best to use depends on things like the intended use, the location, the number of users,
3498-546: The power to inform . At the most fundamental level, it pertains to the interpretation (perhaps formally ) of that which may be sensed , or their abstractions . Any natural process that is not completely random and any observable pattern in any medium can be said to convey some amount of information. Whereas digital signals and other data use discrete signs to convey information, other phenomena and artifacts such as analogue signals , poems , pictures , music or other sounds , and currents convey information in
3564-423: The probability of occurrence. Information theory takes advantage of this by concluding that more uncertain events require more information to resolve their uncertainty. The bit is a typical unit of information . It is 'that which reduces uncertainty by half'. Other units such as the nat may be used. For example, the information encoded in one "fair" coin flip is log 2 (2/1) = 1 bit, and in two fair coin flips
3630-438: The provider to the network. Argyle, Michael (2013-10-22). Communicating by Telephone. Elsevier. ISBN 978-1-4832-8628-0 This article relating to communication is a stub . You can help Misplaced Pages by expanding it . This article related to telecommunications is a stub . You can help Misplaced Pages by expanding it . Information Information is an abstract concept that refers to something which has
3696-430: The receiver sends a response back. For example, Person A sends an email to Person B --> Person B responds with their own email back to Person A. The cycle then continues. This chart demonstrates two-way communication and feedback. Two-way communication may occur horizontally or vertically in the organization. When information is exchanged between superior and subordinate, it is known as vertical two-way communication. On
3762-487: The resolution of ambiguity or uncertainty that arises during the interpretation of patterns within the signal or message. Information may be structured as data . Redundant data can be compressed up to an optimal size, which is the theoretical limit of compression. The information available through a collection of data may be derived by analysis. For example, a restaurant collects data from every customer order. That information may be analyzed to produce knowledge that
3828-417: The shadow of the overwhelming success of GSM there in the early 1990s. In Canada, it was first introduced in 1990 by Rogers Cantel , and in 1991 by carrier RAM Mobile Data . In earlier days Mobitex networks in the US were marketed under several names, including RAM Mobile Data, BellSouth Wireless Data, Cingular Wireless and Velocita Wireless following several acquisitions and divestments. Since 2013
3894-471: The specific context associated with this interpretation may cause the transformation of the information into knowledge . Complex definitions of both "information" and "knowledge" make such semantic and logical analysis difficult, but the condition of "transformation" is an important point in the study of information as it relates to knowledge, especially in the business discipline of knowledge management . In this practice, tools and processes are used to assist
3960-663: The standard) estimated that at least twenty million breakdowns and recoveries were transmitted over Turbo Dispatch each year. BT subsidiary Transcomm announced the shutdown of the network in 2010. In Sweden, the Mobitex network was finally shut down permanently on December 31, 2012 after 25 years. As of 2020, Mobitex is mainly used in Belgium, the Netherlands (both RAM Mobile Data ) (including network coverage of Luxembourg), Hong Kong (Telecom Digital Data Ltd), Canada (Rogers) and
4026-418: The study of the form rather than the content of signs and sign systems. Nielsen (2008) discusses the relationship between semiotics and information in relation to dictionaries. He introduces the concept of lexicographic information costs and refers to the effort a user of a dictionary must make to first find, and then understand data so that they can generate information. Communication normally exists within
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#17327839767114092-725: The success of the Voyager missions to deep space, the invention of the compact disc , the feasibility of mobile phones and the development of the Internet. The theory has also found applications in other areas, including statistical inference , cryptography , neurobiology , perception , linguistics, the evolution and function of molecular codes ( bioinformatics ), thermal physics , quantum computing , black holes , information retrieval , intelligence gathering , plagiarism detection , pattern recognition , anomaly detection and even art creation. Often information can be viewed as
4158-434: The system can be called information. In other words, it can be said that information in this sense is something potentially perceived as representation, though not created or presented for that purpose. For example, Gregory Bateson defines "information" as a "difference that makes a difference". If, however, the premise of "influence" implies that information has been perceived by a conscious mind and also interpreted by it,
4224-416: The transaction of business". The International Committee on Archives (ICA) Committee on electronic records defined a record as, "recorded information produced or received in the initiation, conduct or completion of an institutional or individual activity and that comprises content, context and structure sufficient to provide evidence of the activity". Records may be maintained to retain corporate memory of
4290-461: The world, making it simple to have a two-way conversation with a neighbor or with someone many miles away. Telephones have gone under many changes throughout the years. For example, today's telephones use electronic switches instead of operators. The switch uses a dial tone so that when one picks up the phone you are aware that both the switch and the phone are functioning properly.Land-line telephones are also not very common anymore. Another major change
4356-443: Was the informational equivalent of 174 newspapers per person per day in 2007. The world's combined effective capacity to exchange information through two-way telecommunication networks was the informational equivalent of 6 newspapers per person per day in 2007. As of 2007, an estimated 90% of all new information is digital, mostly stored on hard drives. The total amount of data created, captured, copied, and consumed globally
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