While the first business computers were introduced in the 1950s, portable, first laptop computers were not introduced until 1979. Laptop computers first became commercially produced in 1981 with osborne 1 system, which was about the size of a portable sewing machine. It had a tiny monitor, with inability to run on battery power.
By 1982, GRID Compass debuted. It was the first real father of laptop computers. It was truly portable, with folding design we know today and the ability to operate on battery alone. But GRID Compass was expensive and incompatible with IBM, so therefore it was used almost solely by NASA.
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