Osborne 1
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The Osborne 1 is the first commercially successful portable computer, released on April 3, 1981, by Osborne Computer Corporation. It weighs 24.5 lb, cost US$1,795, and runs the CP/M 2.2 operating syst
Osborne 1 open
Later-model Osborne 1 with the redesigned case
The 500+ page Osborne 1 user manual contains instructions on the hardware, WordStar, SuperCalc, BASIC software and the CP/M operating system and utilities.
ADVENT (Colossal Cave Adventure) running on an Osborne Computer c. 1982
Kaypro
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Kaypro Corporation was an American home and personal computer manufacturer based in Solana Beach, California, in the 1980s. The company was founded by Non-Linear Systems to compete with the popular Os
Osborne 1
…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. The Osborne 1 was developed by Adam Osborne and designed by Lee Felsenstein, first announced in early 1981. Osborne, an author of computer books…
Boy with Kaypro II, 1984
A Kaypro II displaying the Kaypro Wikipedia page using Lynx over a serial connection
A Kaypro II motherboard
A Kaypro 10 portable computer