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The first computer keyboards were for mainframe computer data terminals and used discrete electronic parts. The first keyboard microprocessor was introduced in 1972 by General Instruments, but keyboards have been using the single-chip 8048 microcontroller variant since it became available in 1978.
Christopher Latham Sholes (February 14, 1819 – February 17, 1890) was an American inventor who invented the QWERTY keyboard, [2] and, along with Samuel W. Soule, Carlos Glidden and John Pratt, has been contended to be one of the inventors of the first typewriter in the United States. [3] [4] [5] He was also a newspaper publisher and Wisconsin ...
In 1915 he invented the first vacuum tube instrument, the audio piano. Until the invention of the transistor , the vacuum tube was an essential component in electric instruments. In 1935, the Hammond organ was introduced, [ 7 ] exploiting previous limited production efforts like the Robb Wave Organ [ 8 ] from 1923.
The QWERTY keyboard, so named for the first six characters of the uppermost alphabetic row, was invented during the course of the typewriter's development. The first model constructed by Sholes used a piano-like keyboard with two rows of characters arranged alphabetically as follows: [13]
These were soon replaced with a ball-type mouse, which was invented by Ronald E. Rider and developed by Bill English. These are photo-mechanical mice, first using white light, and then infrared (IR), to count the rotations of wheels inside the mouse. Each key on the Alto keyboard is represented as a separate bit in a set of memory locations.
The first prototype of a computer mouse, as designed by Bill English from Engelbart's sketches [1]. Early dynamic information devices such as radar displays, where input devices were used for direct control of computer-created data, set the basis for later improvements of graphical interfaces. [2]
The QWERTY keyboard layout, developed for typewriters in the 1870s, remains the de facto standard for English-language computer keyboards. The origins of this layout still need to be clarified. [ 5 ] Similar typewriter keyboards, with layouts optimised for other languages and orthographies, emerged soon afterward, and their layouts have also ...
It was Japan's first successful mechanical computer. [48] [dubious – discuss] [47] c. 1900 United States: The Standard Adding Machine Company released the first 10-key adding machine in about 1900. The inventor, William Hopkins, filed his first patent on October 4, 1892. The 10 keys were set on a single row. 1902 United States