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MS-BASIC 1.21 for the TI Professional Computer

This is a special version of Microsoft Basic specifically tailored for the Texas Instrument Professional Computer. Unlike most Microsoft BASIC interpreters, TI did not bundle it with their MS-DOS, but sold it as a separate product instead. The TI Professional Computer was a non IBM hardware compatible x86 machine that ran a special adaptation of MS-DOS. As a result, this adaptation of MS-BASIC is also not 100% compatible with BASIC programs written for IBM PC. Important: This software will not run on an IBM PC or compatible. It will only run on a TI Professional Computer. Archive includes one 5.25" 160k (8-sector single sided) floppy disk image.

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