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Various versions of this apparatus were built in the 1960s and 1970s. One such timer was concealed in a shoe and another in a pack of cigarettes. Thorp and Claude Shannon built some computerized timing devices to help them win at a game of roulette.
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The Qing Dynasty saw the introduction of a fully functional abacus on a ring, which could be used while it was being worn. She also possessed a 'finger-watch' set in a ring, with an alarm that prodded her finger. Queen Elizabeth I of England received a watch from Robert Dudley in 1571, as a New Year present it may have been worn on the forearm rather than the wrist. The development of wearable items has taken several steps of miniaturization from discrete electronics over hybrid designs to fully integrated designs, where just one processor chip, a battery and some interface conditioning items make the whole unit.
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Wearable computers have various technical issues common to other mobile computing, such as batteries, heat dissipation, software architectures, wireless and personal area networks, and data management. Devices carried in a pocket or bag – such as smartphones and before them pocket calculators and PDAs, may or may not be regarded as 'worn'. fitness trackers), hung from the neck (like a necklace), strapped to the arm or leg (smartphones when exercising), or on the head (as glasses or a helmet), though some have been located elsewhere (e.g. Wearables are typically worn on the wrist (e.g. It may be that specialized wearables will evolve into general all-in-one devices, as happened with the convergence of PDAs and mobile phones into smartphones. Under the definition of wearable computers, we also include novel user interfaces such as Google Glass, an optical head-mounted display controlled by gestures. They may incorporate special sensors such as accelerometers, heart rate monitors, or on the more advanced side, electrocardiogram (ECG) and blood oxygen saturation (SpO2) monitors.
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Alternatively, they may be for specialized purposes such as fitness trackers. Wearables may be for general use, in which case they are just a particularly small example of mobile computing. The definition of 'wearable computer' may be narrow or broad, extending to smartphones or even ordinary wristwatches. Smartwatches are an example of a wearable computer.Ī wearable computer, also known as a wearable or body-borne computer, is a computing device worn on the body.