Osborne Portable Computer Motherboard (1981-1982)

The Osborne 1 was the first widely accepted portable computer that included a monitor, disk drives and all components.

It was introduced in 1981 at the West Coast Computer Faire. It had 64 Kb of memory, a 5 inch display screen and had two floppy disk drives and a full sized keyboard.

Shown below is an Osborne PC Motherboard. The Motherboard has the Z80A microprocessor (center of board).

The board is copyrighted 1981 by Osborne Computer Corporation. The board was removed from a 1982 Osborne.


Other views of the Osborne

Other views of the Osborne (inside)

Other views of the Osborne (inside)

Osborne I Specifications Document

See also: Osborne Executive Portable Computer (1983)

Osborne Floppy Disk Drive Controller Board.


History of Computing

An Encyclopedia of the People and Machines that Made Computer History

Photo Gallery:

Copyright © 1982-2000, Lexikon Services "History of Computing" ISBN 0-944601-78-2

See Photo Copyright Info

Return to Gallery Index