IBM 5140 Convertible Personal Computer (1986)

The IBM 5140 Convertible PC was the FIRST IBM Laptop. It was introduced in April 1986 as the successor to the "IBM Portable".

It sported an 80C88 Processor and 256K RAM expandable to 512K. It had 2, 3.5 inch low density floppies, a detachable 25 line non-backlit screen. You could remove this screen and hook up to a regular monitor, hence the term "Convertible."

It came with a 78-key keyboard. It weighed 12 pounds, ran on a battery or AC adapter. It cost..$1,675 with no attachments or case, etc.


Photo Courtesy of John Woodall

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