The MIT Suitcase Computer, constructed in 1975, was the first known microprocessor-based portable computer. It was based on the Motorola 6800. Constructed in a Samsonite suitcase approximately 20 by 30 by 8 inches (510 mm × 760 mm × 200 mm) and weighing approximately 20 lb (9.1 kg), it had 4K of SRAM, a serial port to accept downloaded ...

The Compaq Portable is an early portable computer which was one of the first IBM PC compatible systems. It was Compaq Computer Corporation's first product, to be followed by others in the Compaq Portable series and later Compaq Deskpro series.

Aug 31, 2006 · A lot of online literature claims the Compaq Portable was the first with a date of 1982, but my research shows it was only announced in 1982, and wasn't actually in consumer's hands until March 1983, which would make the Hyperion the first actual luggable IBM PC-compatible in consumer's hands.

The IBM Portable Personal Computer 5155 model 68 is an early portable computer developed by IBM after the success of the suitcase-size Compaq Portable. It was released in February 1984 and was quickly replaced by the IBM Convertible, only roughly two years after its debut.

In the span of just 50 years, portable computers have evolved from experimental prototypes weighing over 50 pounds to powerful yet sleek devices fitting in backpacks. Portable computing has revolutionized work, enabling productivity on-the-go with performance rivaling desktops.

The Osborne 1 is the first mass-produced portable computer--a suitcase-sized "luggable" system weighing 23.5 pounds. It was one of the first bundled systems, with an inclusive package of hardware and software including word processing, spreadsheet, and BASIC programs.

Mar 31, 2017 · Commonly known as the “Compaq luggable”, it was one of the first IBM PC-compatible computers, made all the more flash by the fact that you could attach the keyboard to form the base of the...

May 31, 2010 · The first commercially successful portable personal computer weighed 23.5 pounds, and when closed it looked like a lopsided, hard-body suitcase.

The Osborne 1 sometimes gets the distinction of being the first commercially successful portable computer. Released in 1981, it weighed 23.5 pounds -- easier to tote than the IBM 5100, but still not something you'd actually carry in your lap.

Mar 22, 2025 · In April 1981 writer and computer entrepreneur Adam Osborne and Osborne Computer Corporation, Hayward, California, produced the first commercially successful "portable" computer, the Osborne 1. It weighed twenty-three pounds, ran the CP/M operating system, and sold for $1795, with $2000 worth of software included.