Lee Felsenstein
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Lee Felsenstein is an American computer engineer who played a central role in the development of personal computers. He was one of the original members of the Homebrew Computer Club and the designer o
Felsenstein in 2010
Processor Technology Sol-20 computer designed by Lee Felsenstein
Felsenstein at the Vintage Computer Festival, 2005
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
Lee Felsenstein
…played a central role in the development of personal computers. He was one of the original members of the Homebrew Computer Club and the designer of the Osborne 1, the first mass-produced portable computer. Before the Osborne, Felsenstein designed the Intel 8080 based Sol-20 computer from Processor Technology…
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