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Generic Personal Computer Character Set Keyboard Translations

IP.com Disclosure Number: IPCOM000059750D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Gaudet, JL: AUTHOR [+2]

Abstract

In DisplayWrite 2 for the IBM Personal Computer, the keyboard software is matched to a given menu-language; e.g., a French menu-language DisplayWrite 2 runs only on a French PC keyboard. This match-up is used for the U.S.A., U.K., France, Italy, Spain and Germany. This means that a given copy of DisplayWrite 2 is designed to use only one of the six PC keyboards for the six countries listed. An enhanced version of DOS 2.1 supports a DOS command that "switches" PC keyboards. Of course, the physical keyboard is not switched; rather, the RAM BIOS is switched so that another PC keyboard is emulated. This new DOS command allows 10 different keyboards to be emulated. The U.S.A. keyboard is available via a "hot key" CTL-ALT-F1 key sequence. The emulated keyboard can be returned to via a "hot key" CTL- ALT-F2 key sequence.

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Generic Personal Computer Character Set Keyboard Translations

In DisplayWrite 2 for the IBM Personal Computer, the keyboard software is matched to a given menu-language; e.g., a French menu-language DisplayWrite 2 runs only on a French PC keyboard. This match-up is used for the U.S.A., U.K., France, Italy, Spain and Germany. This means that a given copy of DisplayWrite 2 is designed to use only one of the six PC keyboards for the six countries listed. An enhanced version of DOS 2.1 supports a DOS command that "switches" PC keyboards. Of course, the physical keyboard is not switched; rather, the RAM BIOS is switched so that another PC keyboard is emulated. This new DOS command allows 10 different keyboards to be emulated. The U.S.A. keyboard is available via a "hot key" CTL-ALT-F1 key sequence. The emulated keyboard can be returned to via a "hot key" CTL- ALT-F2 key sequence. DisplayWrite 3 version 1.1 provides a new version of keyboard software which is independent of the attached PC keyboard. We call this a generic translation because it provides all the translation functions of DisplayWrite 2. It does this without knowing or needing to know which keyboard emulation program is running in NATIONAL DOS. The actual number of characters supported is equal to the total number of characters in the EBCDIC Standard, Code Page ID #256. This single translation table is used for any home keyboard when the Keyboard description Menu, Home Keyboard option is set to 3=Internat...