IBM Portable PC

"My father was asked to run the IBM PC division in Ireland when the PC first emerged in the early 80's (most IBM'ers thought the PC was a joke back then). He brought home one of the first "portable" PC's - this was mainly used for Frogger and PacMan, before making it's way into the attic. It's about the size and weight of a suitcase. 256kb okay...."