This layout was devised and created in the early 1870s by Christopher Latham Sholes, a newspaper editor and printer who lived in Milwaukee. With the assistance of his friends Carlos Glidden and Samuel W. Soule he built an early writing machine for which a patent application was filed in October 1867.
for our computer keyboard
The first model constructed by Sholes used a piano-like keyboard with two rows of characters arranged alphabetically as follows:
Computer Keyboard
His "Type Writer" had two features which made jams a serious issue. Firstly, characters were mounted on metal arms or typebars, which would clash and jam if neighboring arms were depressed at the same time or in rapid succession. Secondly, its printing point was located beneath the paper carriage, invisible to the operator, a so-called "up-stroke" design. Consequently, jams were especially serious, because the typist could only discover the mishap by raising the carriage to inspect what he had typed. The solution was to place commonly used letter-pairs (like "th" or "st") so that their typebars were not neighboring, avoiding jams. While it is often said that QWERTY was designed to "slow down" typists, this is incorrect – it was designed to prevent jams while typing at speed, yet some of the layout decisions, such as placing only one vowel on the home row, did have the effect of hobbling more modern keyboards.
IBM PC keyboard)
Computer Keyboards Gallery
Computer keyboards are similar
Computer Keyboards Gallery
for our computer keyboard
The first model constructed by Sholes used a piano-like keyboard with two rows of characters arranged alphabetically as follows:
Computer Keyboard
His "Type Writer" had two features which made jams a serious issue. Firstly, characters were mounted on metal arms or typebars, which would clash and jam if neighboring arms were depressed at the same time or in rapid succession. Secondly, its printing point was located beneath the paper carriage, invisible to the operator, a so-called "up-stroke" design. Consequently, jams were especially serious, because the typist could only discover the mishap by raising the carriage to inspect what he had typed. The solution was to place commonly used letter-pairs (like "th" or "st") so that their typebars were not neighboring, avoiding jams. While it is often said that QWERTY was designed to "slow down" typists, this is incorrect – it was designed to prevent jams while typing at speed, yet some of the layout decisions, such as placing only one vowel on the home row, did have the effect of hobbling more modern keyboards.
IBM PC keyboard)
Computer Keyboards Gallery
Computer keyboards are similar
Computer Keyboards Gallery
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