Archive No. 129
Osorne 1
Has modem Replaced PSU with PicoPSU adapter, but still no picture on screen. Get a single beep when power supply is turned on, no lights on front of machine. Handle is broke so replaced with wire.
Historical Context
The Osborne One helped define the early “portable computer” idea by packaging a full CP/M business system into a luggable, suitcase-like design in 1981. It is especially important in computing history because it is widely regarded as the first commercially successful portable computer, and because its bundled-software strategy and the later “Osborne effect” made it influential far beyond the machine itself.
Specifications
Technical Blueprint
Ref: UNKNOWN
Processor
Zilog Z80 4MHz
Memory
64KB
Storage
TBD
Graphics
5” monochrome CRT
Operating System
CP/M
Hardware Notes
PRAM battery removed
Gallery
Detailed Observations
The Story
Has modem Replaced PSU with PicoPSU adapter, but still no picture on screen. Get a single beep when power supply is turned on, no lights on front of machine. Handle is broke so replaced with wire. One front clip for the keyboard is broken.
Restoration Log
Work Done
Every repair, recap, and restoration performed on this machine — documented as the work was completed.