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Minicomputers (colloquially, minis) are a class of multi-user computers that lie in the middle range of the computing spectrum, in between the smallest mainframe computers and the largest single-user systems (microcomputers or personal computers).
The 200LX, a popular Palmtop PC from Hewlett-Packard. A Palmtop PC is an obsolete, approximately pocket calculator-sized, battery-powered computer in a horizontal clamshell design with integrated keyboard and display.
A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...
TI-990 programmers panel. The TI-990 was a series of 16-bit minicomputers sold by Texas Instruments (TI) in the 1970s and 1980s. The TI-990 was a replacement for TI's earlier minicomputer systems, the TI-960 and the TI-980.
Alan Kay holding the mockup of his Dynabook concept in 2008. The history of the laptop follows closely behind the development of the personal computer itself. A "personal, portable information manipulator" was imagined by Alan Kay at Xerox PARC in 1968, [7] and described in his 1972 paper as the "Dynabook". [8]
A flat-panel display (FPD) computer monitor A cathode-ray tube (CRT) computer monitor. A computer monitor is an output device that displays information in pictorial or textual form.
A diagram showing how the user interacts with application software on a typical desktop computer.The application software layer interfaces with the operating system, which in turn communicates with the hardware.