أكاديميا - كولنز - معاجم الجيب العلمية - الكمبيوتر - انكليزي - فرنسي - عربي الحرف ٣_m

Academia - Collins - Pocket Scientific Dictionaries - Computer - English - French - Arabic Letter 3_M

microelectronics
microélectronique f

Microelectronics. The branch of electronics that uses very small electronic parts. Integrated circuits are one example in which size, cost, weight, and electricity consumption have been greatly reduced, accompanied by increased reliability.

microfiche
microfiche f

Microdata card. The name given to a photographic-like slide (or film in the case of microfilm) that is viewed using a special type of projector. The size of printed pages, charts, or diagrams stored in this way is greatly reduced. A 6 x 4 inch microdata card can hold up to 250 pages, while a continuous reel of microfilm can hold 2,000 pages. The computer's output can be placed directly on a microcard or on microfilm using a cathode-ray tube (CRT) (miniaturized) or special laser printer. In addition to the reduction in size, there is a significant reduction in weight compared to output printed on paper. Using special machines, a computer can select and read pages from a microfilm.

microfloppy
microdisquette f

A microdiskette. Currently the most common type of magnetic disk for microcomputers. It consists of a 3.5-inch disk inside a reinforced plastic case with a sliding cover that exposes the area reached by the microcomputer's read/write head. This disk rotates at about 300 revolutions per minute.

Writing is recorded along concentric circular tracks divided into sectors. There are approximately 135 tracks on each side. Because the disk is hard, data and tracks can be densely packed and the read/write heads can be very close to the surface, so microplatters can hold up to 1.4 MB, much more than other hard disks.

microprocessor
microprocesseur m

A microprocessor is a large-scale integration chip used as the central processing unit of a computer. This processor is capable of receiving and storing data and performing arithmetic and logical operations according to its stored program and giving its results. In addition to its use in microcomputers, the microprocessor is used in very wide fields so that it is difficult to find a field in which it is not used. Its applications today include cooking ovens, washing machines, cars, airplanes, machine controls, bank cash dispensers, and public telephone booths.

microwriter
micromachine f à écrire

A microwriter. A portable device with a six-button keyboard designed to replace the traditional QWERTY keyboard, and has a single-line display and memory. By pressing different combinations of touches or buttons, different character attributes are placed in the memory. This tool is used to write, store and edit letters and reports wherever you are (on a plane or train, for example), and can be converted - if necessary - into a word processor when you return to the office. Since the advent and spread of portable computers, the use of the mini-typewriter has decreased.

minicomputer
miniordinateur m

Computer. This name is given to small-sized machines that have - compared to mainframe computers - limited memory and few peripheral devices. Since computers range in size from the fixed-site mainframe to the portable microcomputer, they are usually used for a single specific task.