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IBM 5100

IBM 5100The IBM 5100 is recognized as the first portable computer and was first released in September 1975. The computer weighed 55 pounds and had a five inch CRT display, tape drive, 1.9MHz PALM processor, and 64KB of RAM. The picture is an ad of the IBM 5100 taken from a November 1975 issue of Scientific America.

Also see: IBM compatible, Portable computer