CP/M

Computer · 1984

Kaypro 4

Kaypro began as a subsidiary of Non-Linear Systems, the electronic measuring-instrument manufacturer founded by Andrew Kay. From 1981, it developed a portable …

Computer · 1977

North Star Horizon

The Horizon from North Star Computers reached the market in autumn 1977, priced at US$1,599 as a kit or $1,899 assembled. It uses the S-100 bus, then the …

Model illustration · Image: Suspiciouscelery · CC0 1.0 · Source and original on Wikimedia Commons · WebP, resized where necessary

Computer · 1981

Osborne 1

The Osborne 1 is regarded as the first commercially successful portable computer. Adam Osborne founded the Osborne Computer Corporation for the project, and …

Model illustration · Image: Marcin Wichary · CC BY 2.0 · Source and original on Wikimedia Commons · WebP, resized where necessary