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Classes of computers. Different types of computers – clockwise from top left: Desktop computer (IBM ThinkCentre S50 with monitor) Smartphone ( LYF Water 2) Supercomputer (IBM Blue Gene/P) Video game console (Nintendo GameCube) Computers can be classified, or typed, in many ways. Some common classifications of computers are given below.
According to the Department of Defense, Public Trust is a type of position, not clearance level, though General Services Administration refers to it as clearance level. [18] Certain positions which require access to sensitive information, but not information which is classified, must obtain this designation through a background check.
Parallel computers can be roughly classified according to the level at which the hardware supports parallelism, with multi-core and multi-processor computers having multiple processing elements within a single machine, while clusters, MPPs, and grids use multiple computers to work on the same task. Specialized parallel computer architectures ...
The Orange Book. Trusted Computer System Evaluation Criteria ( TCSEC) is a United States Government Department of Defense (DoD) standard that sets basic requirements for assessing the effectiveness of computer security controls built into a computer system. The TCSEC was used to evaluate, classify, and select computer systems being considered ...
Document classification or document categorization is a problem in library science, information science and computer science. The task is to assign a document to one or more classes or categories. This may be done "manually" (or "intellectually") or algorithmically. The intellectual classification of documents has mostly been the province of ...
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 ...
Magnetic-core memory computers (5 P) Mainframe computers (10 C, 37 P) Massively parallel computers (26 P) Microcomputers (10 C, 56 P) Military computers (3 C, 68 P) Minicomputers (7 C, 74 P) Mobile computers (15 C, 67 P)
A computer lab with desktop PCs with flat-panel monitors. A desktop computer (often abbreviated desktop[ 1]) is a personal computer designed for regular use at a stationary location on or near a desk (as opposed to a portable computer) due to its size and power requirements. The most common configuration has a case that houses the power supply ...