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Osborne I


The Osborne 1 was the first commercially successful portable microcomputer, released on April 3, 1981 by Osborne Computer Corporation. It weighed 10.7 kg (23.5 lb), cost $ 1795 and ran the then-popular CP/M 2.2 operating system. The computer shipped with a large bundle of software that was almost equivalent in value to the machine itself, a practice adopted by other CP/M computer vendors.

The  Osborne 1a was the same system, but included and updated and more rugged case.

Osborne 1 systems: S/N A08519, S/N A17254.

Osborne 1a systems: S/N A00212, S/N A001104, S/N 215252, S/N 230899, S/N 240266.


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