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Emacs keyboard6/6/2023 ![]() ![]() ![]() Many users were willing to memorise the command meanings of so many characters if it reduced typing time. This allowed the user to type very complicated mathematical text, and also to have thousands of single-character commands at their disposal. By combining the modifier keys, it is possible to make ( 50 keys × 5 shift types ) × 2 4 bucky keys = 4000 different inputs. By pressing this key with one hand while playing an appropriate "chord" with the other hand on the shift keys, the user could get the following results:Įach of these might, in addition, be typed with any combination of the ⎈ Control, ◆ Meta, ❖ Super, and ✦ Hyper keys. For example, the G key had a "G" and an up-arrow ("↑") on the top, and the Greek letter gamma (" γ") on the front. Many keys had three symbols on them, accessible by means of the shift keys: a letter and a symbol on the top, and a Greek letter on the front. Each group was in a row, thus allowing easy chording, or pressing of several modifier keys for example, Control+ Meta+ Hyper+ Super could be pressed with the fingers of one hand, while the other hand pressed another key. Meta had been introduced on the earlier Knight keyboard, while Hyper and Super were introduced by this keyboard. The space-cadet keyboard was equipped with seven modifier keys: four keys for bucky bits ( ⎈ Control, ◆ Meta, ❖ Super, and ✦ Hyper), and three shift keys, called ⇧ Shift, Top, and Front (which was labeled on the front of the key the top was labeled Greek). It was inspired by the Knight keyboard, which was developed for the Knight TV system, used with MIT's Incompatible Timesharing System. Kulp in 1978 and used on Lisp machines at Massachusetts Institute of Technology (MIT), which inspired several still-current jargon terms in the field of computer science and influenced the design of Emacs. The space-cadet keyboard is a keyboard designed by John L. Later Symbolics systems used a greatly simplified keyboard, the Symbolics keyboard, that retained only the basic layout and the more commonly used function and modifier keys from the space-cadet keyboard. The Symbolics-labeled version shown here was only used with the LM-2, which was Symbolics' repackaged version of the MIT CADR. ![]()
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