Osborne 1 (tan and brown case)


Osborne 1 luggable computer from 1981

CPU: Z80A @ 4MHz
Floppy Drives: 2 full height SSSD (100KB)
Display: 5" white CRT
Ports: 1 serial, 1 modem, 1 Centronics parallel and 1 video
OS: CP/M 2.2
ROM: version 1.3
Original Price: $1795
Notes: This system would have been bundled with CP/M 2.2, Wordstar/Mailmerge 2.26, Supercalc 1.12, MBASIC and CBASIC. It weighed 24 pounds and was designed to fit under an airplane seat. The monitor on top of the computer is the elusive 12" external monochrome (green) Osborne monitor.

At a M.A.R.C.H. tech weekend on June 30/July 1, Lee Felsenstein signed the underside of this machine for me. The inscription is a reference to an early Osborne ad.

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Last updated on Tuesday, July 22, 2014