Portable keyboard operated alpha computer system with few keys a

Details Portable keyboard operated alpha computer system with few keys a Portable keyboard operated alpha computer system with few keys a

1989-03-29

1991-03-12

Malzahn, David H.

Boots, shoes, and leggings

36470915, G06F 3023

Patent

active

049997955

ABSTRACT:
Alphameric electronic computers are made with fewer keys in keyboard assemblies for selection of a large range of input characters and instructions. To achieve this the computer and keyboard operates in two modes with one providing for example decimal digit processing from single keystroke entries and the other providing for example alphabetic character processing from two successive keystroke entries. The keys, strokes and instructions are cooperatively integrated by means of a visual display integrally located on the computer with coded indicia representing the entries and identifying the key or keys to be stroked and in the case of successive keystrokes representing the sequence of stroking. Accordingly reference to external manuals for computer operating or data entry instructions is rarely necessary.

REFERENCES:
patent: 3675513 (1972-07-01), Flanagan et al.
patent: 3967273 (1976-06-01), Knowlton
patent: 4718029 (1988-01-01), Morino et al.
C. K. Clauer et al., "Computer-Assisted Word Entry Process", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 21, No. 10, Mar. 1979, p. 4184.

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