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Character Set Change Minimization When Alternate Character Is From a Proper Subset of the Home Keyboard Character Set

IP.com Disclosure Number: IPCOM000060011D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08

Publishing Venue

IBM

Related People

Authors:
Gentry, ML Heath, AW Hoffman, VM Peebles, TF [+details]

Abstract

In the prior art, operators of text processing systems used engraved keyboards that consisted of a subset of the characters on a Multilingual Graphic (MLG) code page. These were typically 88, 92, or 96 character keyboards and had a corresponding print element. When an operator wanted to access a character that was not on the engraved keyboard, some alternate sequence of keys to access the desired character was employed. Technology has improved such that the keyboard hardware now available on the IBM Personal Computer (PC) and other related products produce more than 96 characters. The PC keyboard on the PC and PC-XT allows the operator to key 256 graphic characters from the PC code page 437.