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72-594: Wearable may refer to: Clothing Wearable technology Wearable computer Activity tracker Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Wearable . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Wearable&oldid=933245623 " Category : Disambiguation pages Hidden categories: Short description

144-500: A MOSFET transistor channel length of 6.3 nanometres using conventional semiconductor materials, and devices have been built that use carbon nanotubes as MOSFET gates, giving a channel length of approximately one nanometre . The density and computing power of integrated circuits are limited primarily by power-dissipation concerns. The overall power consumption of a new personal computer has been increasing at about 22% growth per year. This increase in consumption comes even though

216-510: A hygienic barrier, keeping infectious and toxic materials away from the body. It can protect feet from injury and discomfort or facilitate navigation in varied environments. Clothing also provides protection from ultraviolet radiation . It may be used to prevent glare or increase visual acuity in harsh environments, such as brimmed hats. Clothing is used for protection against injury in specific tasks and occupations, sports, and warfare. Fashioned with pockets, belts , or loops, clothing may provide

288-412: A sparring weapon , so the equipment aspect rises above the glove aspect). More specialized forms of protective equipment, such as face shields are classified as protective accessories. At the far extreme, self-enclosing diving suits or space suits are form-fitting body covers, and amount to a form of dress, without being clothing per se, while containing enough high technology to amount to more of

360-450: A button before seeing the time. Only in darkness, you had to press a button to light the display with a tiny light bulb, later illuminating LEDs. Most electronic watches today use 32.768 KHz quartz oscillators . As of 2013, processors specifically designed for wristwatches are the lowest-power processors manufactured today—often 4-bit , 32.768 kHz processors. When personal computers were first developed, power consumption

432-591: A diverse array of animal and plant fibers, such as wool, linen, cotton, silk, hemp, and ramie. Although modern consumers may take the production of clothing for granted, making fabric by hand is a tedious and labor-intensive process involving fiber making, spinning, and weaving. The textile industry was the first to be mechanized – with the powered loom  – during the Industrial Revolution . Different cultures have evolved various ways of creating clothes out of cloth. One approach involves draping

504-449: A given power budget. While device shrinkage can reduce some parasitic capacitances, the number of devices on an integrated circuit chip has increased more than enough to compensate for reduced capacitance in each individual device. Some circuits – dynamic logic , for example – require a minimum clock rate in order to function properly, wasting "dynamic power" even when they do not perform useful computations. Other circuits – most prominently,

576-772: A greatest likelihood of speciation lying at about 107,000 years ago. Kittler, Kayser and Stoneking suggest that the invention of clothing may have coincided with the northward migration of modern Homo sapiens away from the warm climate of Africa, which is thought to have begun between 100,000 and 50,000 years ago. A second group of researchers, also relying on the genetic clock, estimate that clothing originated between 30,000 and 114,000 years ago. Dating with direct archeological evidence produces dates consistent with those of lice. In September 2021, scientists reported evidence of clothes being made 120,000 years ago based on findings in deposits in Morocco . The development of clothing

648-496: A large and growing market. In the Western dress code, jeans are worn by both men and women. There are several unique styles of jeans found that include: high rise jeans, mid rise jeans, low rise jeans, bootcut jeans, straight jeans, cropped jeans, skinny jeans, cuffed jeans, boyfriend jeans, and capri jeans. The licensing of designer names was pioneered by designers such as Pierre Cardin , Yves Saint Laurent , and Guy Laroche in

720-610: A means of communicating their wealth and social standing, as well as an indication of their knowledge and understanding of current fashion trends to the general public. As a result, clothing played a significant role in making the social hierarchy perceptible to all members of society. In some societies, clothing may be used to indicate rank or status . In ancient Rome , for example, only senators could wear garments dyed with Tyrian purple . In traditional Hawaiian society, only high-ranking chiefs could wear feather cloaks and palaoa, or carved whale teeth. In China, before establishment of

792-425: A means to carry things while freeing the hands. Clothing has significant social factors as well. Wearing clothes is a variable social norm . It may connote modesty . Being deprived of clothing in front of others may be embarrassing . In many parts of the world, not wearing clothes in public so that genitals , breast , or buttocks are visible could be considered indecent exposure . Pubic area or genital coverage

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864-714: A needle at least 50,000 years old from Denisova Cave in Siberia made by Denisovans . Dyed flax fibers that date back to 34,000 BC and could have been used in clothing have been found in a prehistoric cave in Georgia . Several distinct human cultures, including those residing in the Arctic Circle, have historically crafted their garments exclusively from treated and adorned animal furs and skins. In contrast, numerous other societies have complemented or substituted leather and skins with textiles woven, knitted, or twined from

936-485: A periodic activity are often in an isolated location monitoring an activity. These systems are generally battery- or solar-powered and hence, reducing power consumption is a key design issue for these systems. By shutting down a functional but leaky block until it is used, leakage current can be reduced significantly. For some embedded systems that only function for short periods at a time, this can dramatically reduce power consumption. Two other approaches also exist to lower

1008-938: A protective function. For instance, corrective eyeglasses , Arctic goggles , and sunglasses would not be considered an accessory because of their protective functions. Clothing protects against many things that might injure or irritate the naked human body, including rain, snow, wind, and other weather, as well as from the sun. Garments that are too sheer, thin, small, or tight offer less protection. Appropriate clothes can also reduce risk during activities such as work or sport. Some clothing protects from specific hazards, such as insects, toxic chemicals, weather, weapons , and contact with abrasive substances. Humans have devised clothing solutions to environmental or other hazards: such as space suits , armor , diving suits , swimsuits , bee-keeper gear , motorcycle leathers , high-visibility clothing , and other pieces of protective clothing . The distinction between clothing and protective equipment

1080-571: A sign of mourning. The Quran says about husbands and wives, regarding clothing: "...They are clothing/covering (Libaas) for you; and you for them" (chapter 2:187). Christian clergy members wear religious vestments during liturgical services and may wear specific non-liturgical clothing at other times. Clothing appears in numerous contexts in the Bible. The most prominent passages are: the story of Adam and Eve who made coverings for themselves out of fig leaves , Joseph 's coat of many colors , and

1152-471: A signal must be slower than that dictated by the RC time constant of the circuit being driven. In other words, the price of reduced power consumption per unit computation is a reduced absolute speed of computation. In practice, although adiabatic circuits have been built, it has been difficult for them to reduce computation power substantially in practical circuits. Finally, there are several techniques for reducing

1224-414: A significant effect on battery life. The second major benefit is that with less voltage and therefore less power consumption, there will be less heat produced. Processors that run cooler can be packed into systems more tightly and will last longer. The third major benefit is that a processor running cooler on less power can be made to run faster. Lowering the voltage has been one of the key factors in allowing

1296-488: A special case of occupational clothing. Sometimes it is worn only during the performance of religious ceremonies. However, it may be worn every day as a marker for special religious status. Sikhs wear a turban as it is a part of their religion. In some religions such as Hinduism , Sikhism , Buddhism , and Jainism the cleanliness of religious dresses is of paramount importance and considered to indicate purity. Jewish ritual requires rending (tearing) of one's upper garment as

1368-563: A tool than a garment. This line will continue to blur as wearable technology embeds assistive devices directly into the fabric itself; the enabling innovations are ultra low power consumption and flexible electronic substrates . Clothing also hybridizes into a personal transportation system ( ice skates , roller skates , cargo pants , other outdoor survival gear , one-man band ) or concealment system ( stage magicians , hidden linings or pockets in tradecraft , integrated holsters for concealed carry , merchandise -laden trench coats on

1440-519: A used T-shirt with a Tongan wrapped skirt, or tupenu . For practical, comfort or safety reasons, most sports and physical activities are practised wearing special clothing. Common sportswear garments include shorts , T-shirts , tennis shirts , leotards , tracksuits , and trainers . Specialized garments include wet suits (for swimming, diving , or surfing ), salopettes (for skiing ), and leotards (for gymnastics). Also, spandex materials often are used as base layers to soak up sweat. Spandex

1512-435: A wide variety of materials, ranging from leather and furs to woven fabrics, to elaborate and exotic natural and synthetic fabrics . Not all body coverings are regarded as clothing. Articles carried rather than worn normally are considered accessories rather than clothing (such as Handbags ), items worn on a single part of the body and easily removed ( scarves ), worn purely for adornment (jewelry), or items that do not serve

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1584-900: A wide variety of situations), but a wider range of clothing styles is available for women. Typically, men are allowed to bare their chests in a greater variety of public places. It is generally common for a woman to wear clothing perceived as masculine, while the opposite is seen as unusual. Contemporary men may sometimes choose to wear men's skirts such as togas or kilts in particular cultures, especially on ceremonial occasions. In previous times, such garments often were worn as normal daily clothing by men. In some cultures, sumptuary laws regulate what men and women are required to wear. Islam requires women to wear certain forms of attire, usually hijab . What items required varies in different Muslim societies; however, women are usually required to cover more of their bodies than men. Articles of clothing Muslim women wear under these laws or traditions range from

1656-430: Is considered appropriate. The differences are in styles, colors, fabrics, and types. In contemporary Western societies, skirts , dresses , and high-heeled shoes are usually seen as women's clothing, while neckties usually are seen as men's clothing. Trousers were once seen as exclusively men's clothing, but nowadays are worn by both genders. Men's clothes are often more practical (that is, they can function well under

1728-630: Is deeply connected to human evolution, with early garments likely consisting of animal skins and natural fibers adapted for protection and social signaling. According to anthropologists and archaeologists, the earliest clothing likely consisted of fur , leather, leaves, or grass that was draped, wrapped, or tied around the body. Knowledge of such clothing remains inferential, as clothing materials deteriorate quickly compared with stone, bone, shell, and metal artifacts. Archeologists have identified very early sewing needles of bone and ivory from about 30,000 BC, found near Kostenki , Russia in 1988, and in 2016

1800-399: Is different from Wikidata All article disambiguation pages All disambiguation pages Clothing Clothing serves many purposes: it can serve as protection from the elements, rough surfaces, sharp stones, rash-causing plants, and insect bites, by providing a barrier between the skin and the environment. Clothing can insulate against cold or hot conditions, and it can provide

1872-485: Is not always clear-cut since clothes designed to be fashionable often have protective value, and clothes designed for function often have corporate fashion in their design. The choice of clothes also has social implications. They cover parts of the body that social norms require to be covered, act as a form of adornment, and serve other social purposes. Someone who lacks the means to procure appropriate clothing due to poverty or affordability, or lack of inclination, sometimes

1944-429: Is preferable for active sports that require form fitting garments, such as volleyball, wrestling, track and field, dance, gymnastics, and swimming. Paris set the 1900–1940 fashion trends for Europe and North America. In the 1920s the goal was all about getting loose. Women wore dresses all day, every day. Day dresses had a drop waist, which was a sash or belt around the low waist or hip and a skirt that hung anywhere from

2016-450: Is related to various perceptions, physiological, social, and psychological needs, and after food, it is clothing that satisfies these comfort needs. Clothing provides aesthetic, tactile, thermal, moisture, and pressure comfort. The most obvious function of clothing is to protect the wearer from the elements. It serves to prevent wind damage and provides protection from sunburn . In the cold, it offers thermal insulation . Shelter can reduce

2088-438: Is said to be worn, ragged, or shabby. Clothing performs a range of social and cultural functions, such as individual, occupational, gender differentiation, and social status. In many societies, norms about clothing reflect standards of modesty , religion, gender , and social status . Clothing may also function as adornment and an expression of personal taste or style. Serious books on clothing and its functions appear from

2160-479: Is subject to decay, and the erosion of physical integrity may be seen as a loss of cultural information. Costume collections often focus on important pieces of clothing considered unique or otherwise significant, limiting the opportunities scholars have to study everyday clothing. Clothing has long served as a marker of social status, gender, and cultural identity, reflecting broader societal structures and values. In most cultures, gender differentiation of clothing

2232-470: Is taking place (static power consumption). In modern chips, this current generally accounts for half the power consumed by the IC. Loss from subthreshold leakage can be reduced by raising the threshold voltage and lowering the supply voltage. Both these changes slow down the circuit significantly. To address this issue, some modern low-power circuits use dual supply voltages to improve speed on critical paths of

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2304-507: Is the most frequently encountered minimum found cross-culturally and regardless of climate, implying social convention as the basis of customs. Clothing also may be used to communicate social status, wealth, group identity, and individualism. Some forms of personal protective equipment amount to clothing, such as coveralls , chaps or a doctor's white coat , with similar requirements for maintenance and cleaning as other textiles ( boxing gloves function both as protective equipment and as

2376-587: The Clean Clothes Campaign (CCC) and the Institute for Global Labour and Human Rights as well as textile and clothing trade unions have sought to improve these conditions by sponsoring awareness-raising events, which draw the attention of both the media and the general public to the plight of the workers. Outsourcing production to low wage countries such as Bangladesh , China, India, Indonesia , Pakistan , and Sri Lanka became possible when

2448-560: The Max Planck Institute for Evolutionary Anthropology —have attempted to constrain the most recent date of the introduction of clothing with an indirect method relying on lice . The rationale for this method of dating stems from the fact that the human body louse cannot live outside of clothing, dying after only a few hours without shelter. This strongly implies that the date of the body louse's speciation from its parent, Pediculus humanus , can have taken place no earlier than

2520-614: The Multi Fibre Agreement (MFA) was abolished. The MFA, which placed quotas on textiles imports, was deemed a protectionist measure. Although many countries recognize treaties such as the International Labour Organization , which attempt to set standards for worker safety and rights, many countries have made exceptions to certain parts of the treaties or failed to thoroughly enforce them. India for example has not ratified sections 87 and 92 of

2592-470: The Pentium P5 core voltage decreased from 5V in 1993, to 2.5V in 1997. With lower voltage comes lower overall power consumption, making a system less expensive to run on any existing battery technology and able to function for longer. This is crucially important for portable or mobile systems. The emphasis on battery operation has driven many of the advances in lowering processor voltage because this has

2664-765: The RCA 1802 , but also several later chips such as the WDC 65C02 , the Intel 80C85 , the Freescale 68HC11 and some other CMOS chips – use "fully static logic" that has no minimum clock rate, but can "stop the clock" and hold their state indefinitely. When the clock is stopped, such circuits use no dynamic power but they still have a small, static power consumption caused by leakage current. As circuit dimensions shrink, subthreshold leakage current becomes more prominent. This leakage current results in power consumption, even when no switching

2736-468: The black market — where the purpose of the clothing often carries over into disguise ). A mode of dress fit to purpose, whether stylistic or functional, is known as an outfit or ensemble. Estimates of when humans began wearing clothes vary from 40,000 to as many as 3 million years ago, but recent studies suggest humans were wearing clothing at least 100,000 years ago. Recent studies by Ralf Kittler, Manfred Kayser and Mark Stoneking— anthropologists at

2808-467: The clock rate of processors to go higher and higher. The density and speed of integrated-circuit computing elements has increased exponentially for several decades, following a trend described by Moore's Law . While it is generally accepted that this exponential improvement trend will end, it is unclear exactly how dense and fast integrated circuits will get by the time this point is reached. Working devices have been demonstrated which were fabricated with

2880-455: The head-scarf to the burqa . Some contemporary clothing styles designed to be worn by either gender, such as T-shirts, have started out as menswear, but some articles, such as the fedora , originally were a style for women. During the early modern period , individuals utilized their attire as a significant method of conveying and asserting their social status. Individuals employed the utilization of high-quality fabrics and trendy designs as

2952-447: The republic , only the emperor could wear yellow. History provides many examples of elaborate sumptuary laws that regulated what people could wear. In societies without such laws, which includes most modern societies, social status is signaled by the purchase of rare or luxury items that are limited by cost to those with wealth or status. In addition, peer pressure influences clothing choice. Some religious clothing might be considered

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3024-480: The 1960s and has been a common practice within the fashion industry from about the 1970s. Among the more popular include Marc Jacobs and Gucci , named for Marc Jacobs Guccio Gucci respectively. By the early years of the twenty-first century, western clothing styles had, to some extent, become international styles. This process began hundreds of years earlier, during the periods of European colonialism . The process of cultural dissemination has been perpetuated over

3096-639: The ankle on up to the knee, never above. Day wear had sleeves (long to mid-bicep) and a skirt that was straight, pleated, hank hemmed, or tiered. Jewelry was not conspicuous. Hair was often bobbed, giving a boyish look. In the early twenty-first century a diverse range of styles exists in fashion, varying by geography, exposure to modern media, economic conditions, and ranging from expensive haute couture , to traditional garb, to thrift store grunge . Fashion shows are events for designers to show off new and often extravagant designs. Although mechanization transformed most aspects of human clothing industry , by

3168-399: The average IT budget was spent on energy, and energy costs for IT were expected to rise to 50% by 2010. The weight and cost of power supply and cooling systems generally depends on the maximum possible power that could be used at any one time. There are two ways to prevent a system from being permanently damaged by excessive heat. Most desktop computers design power and cooling systems around

3240-442: The battery requires a trip to a watch repair shop or watch dealer. Rechargeable batteries are used in some solar-powered watches . The first digital electronic watch was a Pulsar LED prototype produced in 1970. Digital LED watches were very expensive and out of reach to the common consumer until 1975, when Texas Instruments started to mass-produce LED watches inside a plastic case. Most watches with LED displays required that

3312-402: The capacitive loads through paths that are not primarily resistive. This is the principle behind adiabatic circuits . The charge is supplied either from a variable-voltage inductive power supply or by other elements in a reversible-logic circuit. In both cases, the charge transfer must be primarily regulated by the non-resistive load. As a practical rule of thumb, this means the change rate of

3384-797: The centuries, spreading Western culture and styles, most recently as Western media corporations have penetrated markets throughout the world. Fast fashion clothing has also become a global phenomenon. These garments are less expensive, mass-produced Western clothing. Also, donated used clothing from Western countries is delivered to people in poor countries by charity organizations. People may wear ethnic or national dress on special occasions or in certain roles or occupations. For example, most Korean men and women have adopted Western-style dress for daily wear, but still wear traditional hanboks on special occasions, such as weddings and cultural holidays. Also, items of Western dress may be worn or accessorized in distinctive, non-Western ways. A Tongan man may combine

3456-490: The circuit and lower power consumption on non-critical paths. Some circuits even use different transistors (with different threshold voltages) in different parts of the circuit, in an attempt to further reduce power consumption without significant performance loss. Another method that is used to reduce power consumption is power gating : the use of sleep transistors to disable entire blocks when not in use. Systems that are dormant for long periods of time and "wake up" to perform

3528-419: The circuit causes a change in the voltage across these parasitic capacitances , which involves a change in the amount of stored energy. As the capacitive loads are charged and discharged through resistive devices, an amount of energy comparable to that stored in the capacitor is dissipated as heat: The effect of heat dissipation on state change is to limit the amount of computation that may be performed within

3600-593: The cloth. Many people wore, and still wear, garments consisting of rectangles of cloth wrapped to fit – for example, the dhoti for men and the sari for women in the Indian subcontinent , the Scottish kilt , and the Javanese sarong . The clothes may be tied up (dhoti and sari) or implement pins or belts to hold the garments in place (kilt and sarong). The cloth remains uncut, and people of various sizes can wear

3672-531: The clothing of Judah and Tamar , Mordecai and Esther . Furthermore, the priests officiating in the Temple in Jerusalem had very specific garments, the lack of which made one liable to death. [REDACTED] = Day (before 6 p.m.) [REDACTED] = Evening (after 6 p.m.)     = Bow tie colour [REDACTED] = Ladies [REDACTED] = Gentlemen The Western dress code has changed over

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3744-527: The clothing; perhaps cutting triangular pieces from one corner of the cloth, and adding them elsewhere as gussets . Traditional European patterns for shirts and chemises take this approach. These remnants can also be reused to make patchwork pockets, hats, vests , and skirts . Modern European fashion treats cloth much less conservatively, typically cutting in such a way as to leave various odd-shaped cloth remnants. Industrial sewing operations sell these as waste; domestic sewers may turn them into quilts . In

3816-542: The device temperature and to the Boltzmann constant ), which the state switching voltage must exceed in order for the circuit to be resistant to noise. This is typically on the order of 50–100 mV, for devices rated to 100 degrees Celsius external temperature (about 4 kT , where T is the device's internal temperature in Kelvins and k is the Boltzmann constant ). The second approach is to attempt to provide charge to

3888-513: The earliest human adoption of clothing. This date, at which the body louse ( P. humanus corporis ) diverged from both its parent species and its sibling subspecies, the head louse ( P. humanus capitis ), can be determined by the number of mutations each has developed during the intervening time. Such mutations occur at a known rate and the date of last-common-ancestor for two species can therefore be estimated from their frequency. These studies have produced dates from 40,000 to 170,000 years ago, with

3960-406: The energy consumed by a single CMOS logic gate in order to change its state has fallen exponentially in accordance with Moore's law, by virtue of shrinkage. An integrated-circuit chip contains many capacitive loads, formed both intentionally (as with gate-to-channel capacitance) and unintentionally (between conductors which are near each other but not electrically connected). Changing the state of

4032-442: The expense of computer performance . The earliest attempts to reduce the amount of power required by an electronic device were related to the development of the wristwatch . Electronic watches require electricity as a power source, and some mechanical movements and hybrid electromechanical movements also require electricity. Usually, the electricity is provided by a replaceable battery . The first use of electrical power in watches

4104-666: The field of Environmental Physiology had advanced and expanded significantly, but the science of clothing in relation to environmental physiology had changed little. There has since been considerable research, and the knowledge base has grown significantly, but the main concepts remain unchanged, and indeed, Newburgh's book continues to be cited by contemporary authors, including those attempting to develop thermoregulatory models of clothing development. Clothing reveals much about human history. According to Professor Kiki Smith of Smith College, garments preserved in collections are resources for study similar to books and paintings. Scholars around

4176-462: The functional need for clothing. For example, coats , hats, gloves, and other outer layers are normally removed when entering a warm place. Similarly, clothing has seasonal and regional aspects so that thinner materials and fewer layers of clothing generally are worn in warmer regions and seasons than in colder ones. Boots, hats, jackets, ponchos, and coats designed to protect from rain and snow are specialized clothing items. Clothing has been made from

4248-405: The garment. Another approach involves measuring, cutting, and sewing the cloth by hand or with a sewing machine . Clothing can be cut from a sewing pattern and adjusted by a tailor to the wearer's measurements. An adjustable sewing mannequin or dress form is used to create form-fitting clothing. If the fabric is expensive, the tailor tries to use every bit of the cloth rectangle in constructing

4320-453: The limit of practical applicability for each appears to have been reached. There are a variety of techniques for reducing the amount of battery power required for a desired wireless communication goodput . Some wireless mesh networks use "smart" low power broadcasting techniques that reduce the battery power required to transmit. This can be achieved by using power aware protocols and joint power control systems. In 2007, about 10% of

4392-625: The mid-twentieth century, garment workers have continued to labor under challenging conditions that demand repetitive manual labor. Often, mass-produced clothing is made in what are considered by some to be sweatshops , typified by long work hours, lack of benefits, and lack of worker representation. While most examples of such conditions are found in developing countries , clothes made in industrialized nations may also be manufactured under similar conditions. Coalitions of NGOs, designers (including Katharine Hamnett, American Apparel , Veja , Quiksilver , eVocal, and Edun), and campaign groups such as

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4464-455: The nineteenth century as European colonial powers interacted with new environments such as tropical ones in Asia. Some scientific research into the multiple functions of clothing in the first half of the twentieth century, with publications such as J.C. Flügel 's Psychology of Clothes in 1930, and Newburgh's seminal Physiology of Heat Regulation and The Science of Clothing in 1949. By 1968,

4536-473: The number of state changes associated with a given computation. For clocked-logic circuits, the clock gating technique is used, to avoid changing the state of functional blocks that are not required for a given operation. As a more extreme alternative, the asynchronous logic approach implements circuits in such a way that a specific externally supplied clock is not required. While both of these techniques are used to different extents in integrated circuit design,

4608-418: The past 500+ years. The mechanization of the textile industry made many varieties of cloth widely available at affordable prices. Styles have changed, and the availability of synthetic fabrics has changed the definition of what is "stylish". In the latter half of the twentieth century, blue jeans became very popular, and are now worn to events that normally demand formal attire. Activewear has also become

4680-430: The power overhead of state changes. One is to reduce the operating voltage of the circuit, as in a dual-voltage CPU , or to reduce the voltage change involved in a state change (making a state change only, changing node voltage by a fraction of the supply voltage— low voltage differential signaling , for example). This approach is limited by thermal noise within the circuit. There is a characteristic voltage (proportional to

4752-401: The thousands of years that humans have been making clothing, they have created an astonishing array of styles, many of which have been reconstructed from surviving garments, photographs, paintings, mosaics , etc., as well as from written descriptions. Costume history can inspire current fashion designers, as well as costumiers for plays, films, television, and historical reenactment . Comfort

4824-455: The treaty. The production of textiles has functioned as a consistent industry for developing nations, providing work and wages, whether construed as exploitative or not, to millions of people. Low-power electronics Low-power electronics are electronics designed to consume less electrical power than usual, often at some expense. For example, notebook processors usually consume less power than their desktop counterparts, at

4896-455: The user press a button to see the time displayed for a few seconds because LEDs used so much power that they could not be kept operating continuously. Watches with LED displays were popular for a few years, but soon the LED displays were superseded by liquid crystal displays (LCDs), which used less battery power and were much more convenient in use, with the display always visible and no need to push

4968-468: The world have studied a wide range of clothing topics, including the history of specific items of clothing, clothing styles in different cultural groups, and the business of clothing and fashion. The textile curator Linda Baumgarten writes that "clothing provides a remarkable picture of the daily lives, beliefs, expectations, and hopes of those who lived in the past. Clothing presents a number of challenges to historians. Clothing made of textiles or skins

5040-403: The worst-case CPU power dissipation at the maximum frequency, maximum workload, and worst-case environment. To reduce weight and cost, many laptop computers choose to use a much lighter, lower-cost cooling system designed around a much lower Thermal Design Power , that is somewhat above expected maximum frequency, typical workload, and typical environment. Typically such systems reduce (throttle)

5112-735: Was as a substitute for the mainspring , to remove the need for winding. The first electrically powered watch, the Hamilton Electric 500 , was released in 1957 by the Hamilton Watch Company of Lancaster, Pennsylvania . The first quartz wristwatches were manufactured in 1967, using analog hands to display the time. Watch batteries (strictly speaking cells, as a battery is composed of multiple cells) are specially designed for their purpose. They are very small and provide tiny amounts of power continuously for very long periods (several years or more). In some cases, replacing

5184-441: Was not an issue. With the development of portable computers however, the requirement to run a computer off a battery pack necessitated the search for a compromise between computing power and power consumption. Originally most processors ran both the core and I/O circuits at 5 volts, as in the Intel 8088 used by the first Compaq Portable . It was later reduced to 3.5, 3.3, and 2.5 volts to lower power consumption. For example,

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