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By the end of the 1980s, laptop computers were becoming popular among business people. The 16-bit COMPAQ SLT/286 debuted in October 1988, being the first battery-powered laptop to support an internal hard disk drive and a VGA compatible LCD screen. It weighed 14 lb (6.4 kg). [12]
The Epson HX-20, the first "notebook computer", was invented in 1980 and introduced in 1982. GRiD Compass 1101 (1982) Both Tandy/RadioShack and Hewlett-Packard (HP) also produced portable computers of varying designs during this period. [17] [18] The first laptops using the flip form factor appeared in the early 1980s.
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.
In 2001, 125 million personal computers were shipped in comparison to 48,000 in 1977. [66] More than 500 million personal computers were in use in 2002 and one billion personal computers had been sold worldwide from the mid-1970s up to this time. Of the latter figure, 75% were professional or work related, while the rest were sold for personal ...
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
The first stored-program transistor computer was the ETL Mark III, developed by Japan's Electrotechnical Laboratory [50] [51] [52] from 1954 [53] to 1956. [51] However, early junction transistors were relatively bulky devices that were difficult to manufacture on a mass-production basis, which limited them to a number of specialized ...
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Six Metrovick 950s were built, the first completed in 1956. They were successfully deployed within various departments of the company and were in use for about five years. [145] A second generation computer, the IBM 1401, captured about one third of the world market. IBM installed more than ten thousand 1401s between 1960 and 1964.