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The laptop was designed to make a personal computer easily portable.

The first portable computer was the GriD Compass (weighing about 5 kilograms). It was invented by Bill Moggridge in 1979 and cost several thousand dollars when it was first sold in 1982. It was widely used by the military and aboard the Space Shuttle.

The first true laptop was invented by Adam Osborne in 1981. It was called 'Osborne 1' and cost $1,795. It came bundled with $1,500 worth of programmes and had a tiny monitor screen built into it. This first portable computer was a success, with sales reaching 10,000 units a month.

IBM launched the IBM 5155 Portable Personal Computer in 1984. In 1988, Compaq Computer launched the first laptop PC with VGA graphics, the Compaq SLT/286. In 1989, NEC released UltraLite, which was the first lightweight 'laptop' computer. Weighing under 5 lbs, it was the precursor of today's models.

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14y ago

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