The 5100 Portable Computer was withdrawn from marketing in March 1982. The next “personal computer” out of the gate was the IBM 5110 Computing System, announced by GSD in January 1978.

The first commercially successful portable personal computer weighed 23.5 pounds ... but it was the first that was MS-DOS-based and IBM PC-compatible. The Compaq Portable played a key role ...

IBM sparked a revolution in personal computing when it unveiled the IBM PC in 1981. But the IBM PC wasn’t IBM’s first personal computer. Six years earlier, Big Blue unleashed a machine called ...

Prior to the Personal Computer, every IBM product (computer ... and Compaq (pictured above is the Compaq Portable(Opens in a new window), the first PC-compatible computer). By the end of the ...

the IBM 5100 was not only personal, but it was also portable. Well, portable by 1970s standards that also had very heavy video cameras and luggable computers like the Osborne 1. The IBM 5100 had a ...

The debut Compaq machine made waves as a capable and relatively inexpensive alternative to IBM's official Personal Computer—and it did it all in a portable package the size of a large suitcase.

One of them was released around the same time as the IBM PC-XT, the Compaq Portable. It was the first PC in what turned out to be a long line of Compaq personal computers. It had a built-in 9-inch ...

The discussion of compatibility culminates in IBM's failed attempt to barge into the "luggable" computer sector with its Portable Personal Computer, which -- unlike Compaq machines -- couldn't run ...

The titular character is Don Estridge, a decidedly atypical IBM employee who was instrumental in creating the personal computer market as we know it. It’s not that IBM invented the personal ...

IBM didn’t officially enter the “personal” market until 1981 ... as the “first portable computer.” A 1977 TV commercial featured a real-estate manager, a farmer, and an insurance ...