I fixed the vintage ThinkPad that IBM screwed up
作者：This Does Not Compute
The ThinkPad 500 was IBM's first subnotebook. It...wasn't perfect.

Sources:
"ThinkPad shipments stopped by Big Blue," the Mount Vernon Argus, November 3, 1993.
"IBM ships Thinkpad 500 again," the Boca Raton News, December 16, 1993.
"ThinkPad 510Cs: IBM's New Blueprint," PC Magazine, August 1994.
"Powerful IBM ThinkPad 500 is a bit too small for comfort," InfoWorld, August 16, 1993.