Key facts
- Also known as
- OCC-1
- Developer
- Adam Osborne
- Manufacturer
- Osborne Computer Corporation
- Type
- Portable computer
- Released
- April 3, 1981 ; 45 years ago ( 1981-04-03 )
- Introductory price
- US$ 1795 (today $6360)
- Discontinued
- 1983 ( 1983 )
- Operating system
- CP/M
- Cpu
- Zilog Z80 @ 4 MHz
- Memory
- 64 KB RAM
- Storage
- Dual 5¼-inch, single-sided, single-density floppy drives (optional dual-density upgrade)
- Display
- 5-inch monochrome CRT display, 52 × 24 characters text
- Graphics
- TTL logic
- Power
- 37 watts max
- Dimensions
- W: 20.5 inches (52 cm), H: 9 inches (23 cm), D: 13 inches (33 cm)
- Weight
- 24.5 lb (11.1 kg)
- Successor
- Osborne Executive
via Wikipedia infobox
Wikidata facts
- Subclass of
- microcomputer
- Followed by
- Osborne Executive
- Developer
- Adam Osborne
- Image
- Osborne 1 open.jpg
Show 3 more facts
- Commons category
- Osborne 1
- operating system
- CP/M
- inception
- 1981-04-03
Sources (3)
via Wikidata · CC0
~16 min read
Encyclopedic overview
The Osborne 1 is the first commercially successful portable computer, released on April 3, 1981, by Osborne Computer Corporation. It weighs 24.5 lb (11.1 kg), cost US$1,795, and runs the CP/M 2.2 operating system. It is powered from a wall socket, as it has no on-board battery, but it is still classed as a portable device since it can be hand-carried when the keyboard is closed.
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. Competitors quickly appeared, such as the Kaypro II.
Excerpted from Wikipedia’s “Osborne 1” article, available under the CC BY-SA 4.0 licence.