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A 'Palmtop PC was an approximately pocket calculator-sized, battery-powered computer compatible with the IBM Personal Computer in a horizontal clamshell design with integrated keyboard and display. It could be used like a subnotebook , but was light enough to be comfortably used handheld as well.
This is the Antikythera mechanism, which is considered the first mechanical analog computer, dating back to the first century BC.. Ideas of computer science were first mentioned before the 1950s under the Massachusetts Institute of Technology (MIT) and Harvard University, where they had discussed and began thinking of computer circuits and numerical calculations.
The computer case holds the motherboard, fixed or removable disk drives for data storage, the power supply, and may contain other peripheral devices such as modems or network interfaces. Some models of desktop computers integrated the monitor and keyboard into the same case as the processor and power supply.
A Kaypro II displaying the Kaypro Wikipedia page using Lynx over a serial connection A Kaypro II motherboard. The Kaypro II has a 2.5 MHz Zilog Z80 microprocessor; 64 KB of RAM; two single-sided 191 KB 5¼-inch floppy disk drives (named A: and B:); and an 80-column, green monochrome, 9" CRT that was praised for its size and clarity (the Osborne 1 had a 5" display).
The IBM Personal Computer (model 5150, commonly known as the IBM PC) is the first microcomputer released in the IBM PC model line and the basis for the IBM PC compatible de facto standard. Released on August 12, 1981, it was created by a team of engineers and designers at International Business Machines (IBM), directed by William C. Lowe and ...
Ebuyer was founded in March 2000 in Sheffield by Paul Cusack, Mike Naylor, Steve Kay, Neeraj Patel, and Adam Ashmore – with startup capital of £250,000 from Paul Cusack, its annual turnover was in excess of £220 million by September 2005. [2]