<P> The first digital watch, which debuted in 1972, was the Pulsar manufactured by Hamilton Watch Company . "Pulsar" became a brand name which would later be acquired by Seiko in 1978 . In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, making it most likely the first watch with user - programmable memory, or "memorybank" watch . With the introduction of personal computers in the 1980s, Seiko began to develop computers in the form of watches . The Data 2000 watch (1983) came with an external keyboard for data - entry . Data was synced from the keyboard to the watch via electro - magnetic coupling (wireless docking). The name comes from its ability to store 2000 characters . The D409 was the first Seiko model with on - board data entry (via a miniature keyboard) and featured a dot matrix display . Its memory was tiny, at only 112 digits . It was released in 1984, in gold, silver and black . These models were followed by many others by Seiko during the 1980s, most notably the "RC Series": During the 1980s, Casio began to market a successful line of "computer watches", in addition to its calculator watches . Most notable was the Casio data bank series . Novelty "game watches", such as the Nelsonic game watches, were also produced by Casio and other companies . </P> <P> The RC - 1000 Wrist Terminal was the first Seiko model to interface with a computer, and was released in 1984 . It was developed by Seiko Epson and was powered by a computer on a chip . It was compatible with most of the popular PCs of that time, including Apple II, II+ and IIe, the Commodore 64, IBM PC, NEC 8201, Tandy Color Computer, Model 1000, 1200, 2000 and TRS - 80 Model I, III, 4 and 4p . The RC - 20 Wrist Computer was released in 1985, under the joint brand name "Seiko Epson". It had a SMC84C00 8 - bit Z - 80 microprocessor; 8 KB of ROM and 2 KB of RAM . It had applications for scheduling, memos, and world time and a four - function calculator app . The dot - matrix LCD displayed 42 × 32 pixels, and more importantly, was touch - sensitive . Like the RC - 1000, it could be connected to a personal computer, in this case through a proprietary cable . It was also notable in that it could be programmed, although its small display and limited storage severely limited application development . The RC - 4000 PC Data graph also released in 1985, was dubbed the "world's smallest computer terminal". It had 2 KB of storage . The RC - 4500 (1985), also known as the Wrist Mac, had the same features as the RC - 4000, but came in a variety of bright, flashy colors . </P> <P> The Timex Datalink wristwatch, was introduced in 1994 . The early Timex Datalink Smartwatches realized a wireless data transfer mode to communicate with a PC . Appointments and contacts created with Microsoft Schedule+, the predecessor of MS Outlook, could be easily transmitted to the watch via a screen blinking light protocol . </P> <P> In 1998, Steve Mann invented, designed, and built the world's first Linux wristwatch, which he presented at IEEE ISSCC2000 on 7 February 2000, where he was named "the father of wearable computing". See also Linux Journal, where Mann's Linux wristwatch appeared on the cover and was the feature article of LJ Issue 75 . Seiko launched the Ruputer in Japan - a wristwatch computer with a 3.6 MHz processor . It was not very successful, since instead of a touchscreen it used a joystick - like device to input characters (much like high scores in arcade games), and the small screen with a resolution at 102x64 in 4 greyscales made it hard to read large amounts of text . Outside of Japan, this watch was distributed as the Matsucom onHand PC . Despite the rather low demand, the Matsucom onHand PC was distributed until 2006, making it a smartwatch with a rather long life cycle . Ruputer and onHand PC applications are 100% compatible . This watch is sometimes considered the first smartwatch since it was the first watch to offer graphics display (albeit monochrome) and many 3rd party applications (mostly homebrew). </P>

Who came out with the first smartwatch samsung or apple
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