Portable-computer meaning

A lightweight computer that can be easily transported. Portable computing started in 1981, when Adam Osborne introduced his CP/M-based business computer called the Osborne I. It came bundled with a modified version of the WordStar word processor specialized for the machine's pint-sized screen. With two floppy disks for storage, its RAM memory was a whopping 64KB.The Osborne I was soon followed by many other CP/M machines, including Kaypro, Hyperion and Otrona. One year later, Compaq introduced the first MS-DOS portable. See CPM, laptop and notebook.
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(computing) A microcomputer powered by batteries with an integral display screen and integral input device (such as a keyboard) that can be used on the move.
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