wearable technology or fashionable technology or wearable computers are all clothing and accessories incorporating computer and advanced electronic technologies. Wearable technology was first invented in 1961 in an attempt to cheat at roulette. Then the calculator wristwatch was released in 1975 followed by the computer backpack in 1981. any wearable computer products were released after that including hearing aids, wearable wireless webcam, Bluetooth headsets, Nike iPod, Fitbit, The Pebble smartwatch, Google Glass, etc.