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Implied Keyboard Change Character Translating Process Disclosure Number: IPCOM000060009D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08

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Heath, AW [+details]


DisplayWrite 3 is a text processor program that is designed to interchange documents with other non-PC-based machines which use primarily code pages 256 and 259. The PC is based on code page 437. The IBM Personal Computer (PC) code page (437) has subsets of characters from Multilingual Graphic (MLG) code pages 256 and 259 and other characters unique to 437. DisplayWrite supports only 256 and 259. The prior art assumed that the operator could only key a 96character subset of keys from code page 437 that was also on code page 256. This was called the home keyboard. For example, the US keyboard versions gave the operator the choice of keyboard WP 001 as in DisplayWriter default, or keyboard DP 103.