Laptop Computer

A laptop computer is a portable personal computer with an integrated screen, keyboard and battery folded into a single clamshell case that a user can carry and operate on their lap. Industrial designer Bill Moggridge designed the GRiD Compass, released in 1982, widely credited as the first laptop to establish the now-familiar clamshell form with a flat screen folding down over the keyboard, though it still required an external power connection rather than running on a true battery. The Radio Shack TRS-80 Model 100, released in 1983, and later machines from Compaq and other manufacturers added real battery power and lower cost, and laptops became a mainstream personal computing category through the 1990s.