Kaypro IV Portable Computer


Kaypro was a manufacturer of portable microcomputers running the CP/M operating system. Its first commercial model, Kaypro II, was launched in 1982. The Kaypro IV was introduced in 1983. Surprisingly, it is not the same as the Kaypro 4, which was released in 1984.

The Kaypro IV was basically a Kaypro II with added Double Sided/Double Density Drives. It had a Z80 microprocessor that ran at 2.5 MHz. The memory included 64 KB of RAM and 2 KB of ROM. Kaypro IV had a 9" monochrome monitor and a built-in speaker. The operating system was CP/M 2.2. The Kaypro IV included the word processor Wordstar, which was included in the Perfect Software Suite.

The introduction of the IBM PC in 1981 led to the rapid growth in popularity of the MS-DOS operating system for personal computers. Software developers migrated to writing for MS-DOS instead of CP/M. Kaypro was slow to make the transition in their machines, and the company never gained the kind of prominence in the MS-DOS arena that it had enjoyed with CP/M. A prime competitor for the MS-DOS portable market was Compaq, which sold an "all in one" computer that was similar to its own CP/M portable. In March 1990 Kaypro filed for bankruptcy.

This Kaypro IV was purchased with funds from a research grant obtained by Robert M. Smith, of the Department of Space History of the National Air and Space Museum. Smith's book, The Space Telescope, was written in part on this computer. The object was received as a transfer from the Natonal Air and Space Museum.

Date Made: 1983

Maker: Kaypro Corporation

Location: Currently not on view

See more items in: Medicine and Science: Computers, Family & Social Life, Work, Computers & Business Machines


Exhibition Location:

Data Source: National Museum of American History

Id Number: 1992.0522.01Catalog Number: 1992.0522.01Accession Number: 1992.0522

Object Name: microcomputer

Physical Description: metal (overall material)plastic (overall material)Measurements: overall: 21.5 cm x 48 cm x 43 cm; 8 7/16 in x 18 7/8 in x 16 15/16 in

Guid: http://n2t.net/ark:/65665/ng49ca746ab-811b-704b-e053-15f76fa0b4fa

Record Id: nmah_1156670

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