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Technique to Make an Intel 80188 Base Machine Substantially Compatible With an IBM Personal Computer Disclosure Number: IPCOM000040694D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02

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Booth, JR Carroll, RW Howell, DM Pruitt, MA Scheibl, FJ [+details]


An Intel 80188 microprocessor, which includes Interrupt Controller, Timers, DMA (Direct Memory Access) Controller, Chip Select Generator, Clock Generator and Bus Controller on its chip, may utilize many IBM Personal Computer (PC) application programs through the use of Application Specific Integrated Circuits (ASICs), software emulating the hardware of the IBM PC, and carefully defining compatibility with the IBM PC. This is accomplished notwithstanding the complications of temperamental timers, interrupt incompatibilities, vector violations, and DMA differences. An Intel 80188 microprocessor may be utilized as a very inexpensive word processor/typewriter in addition to having the ability to load and execute a wide variety of IBM PC programs.