Thursday, December 08, 2005

IBM 5100 Portable Computer

Old Computers - rare, vintage and obsolete computers:"The Model 5100 is IBM's first microcomputer, i.e. not a mainframe, and is also considered the world's first portable computer. Although at 55-pounds, it might best be described as "self-contained" rather than "portable".

There were very few other computers available at the time, and nothing even close to the capabilities of the 5100. It is a very complete system - with a built-in monitor, keyboard, and data storage. It was also very expensive - up to US$20,000. It was specifically designed for professional and scientific problem-solvers, not business users or hobbyists. "

Introduced:September, 1975
Price: US $19,975 w/ 64K RAM
Weight:55 pounds
CPU:IBM proprietary, 1.9MHz
RAM:16K, 64K max
Display:5" monochrome monitor

64 X 16 text
Storage:Internal 200K tape (DC300)
Ports:tape/printer I/O port

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