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

allocate
affecter

Assign. See assign .

alphabetical order
ordre m alphabétique

Alphabetical order. The alphabetical order from A to Z. The computer does not always follow the exact alphabetical order when sorting because the ASCII code lists all uppercase letters before lowercase letters. For example, the letter Z code (90) comes before the letter a code (97). Some computers have separate codes that allow uppercase and lowercase letters to appear together.

alphanumerical code
code m alphanumeric

A set of characters consisting of

(1) (2) (3) (4) (5) (6) (7) (8) (9) (0)

(Q) (W) (E) (R) (T) (Y) (U) (1) (O) (P)

(A) (S) (D) (F) (G) (H) (J) (K) (L)

(Z) (X) (C) (V) (B) (N) (M)

The letters A to Z and the numbers 0 to 9. An example

is an alphanumeric switchboard.

ALU

See arithmetic logic unit.

amplifier
amplificateur m

Amplifier. A device that receives a varying electrical signal and can amplify its voltage (or current).

analogue computer
analog computer

An analogue computer is a machine designed to operate on data represented by a physical quantity that is constantly changing (as opposed to digital signals which are 0s and 1s). For example, a wheel rotation or voltage changes can be used as input. Analog computers are supposed to operate in real time because they respond as things happen, and are widely used in design where they can try out many different shapes and speeds in a short time.

A computer model of a car's suspension allows a designer to see the effects of changing size, stiffness and damping.

analog - digital converter
analog/numeric converter

Analog to digital converter.

See A to D converter

analytical engine
machine f analytic

Analytical engine. The first machine designed to perform complex calculations. It was invented by the Englishman Charles Babbage in 1833, and it was ahead of its time as engineers were unable to manufacture all the necessary parts with the required precision. This analytical engine is the mechanical predecessor of today's computer.

ancestral file

Support file. See backup .

AND gate
circuit m ET

AND gate. A logic gate that works with binary digits. Its output is only logically 1 when all of its inputs have logical values ​​of 1. For example, the following truth table applies to the two-input AND gate:

This can be used to find the relay number when two binary digits are added together since there is no relay of 1 unless both of the added digits are 1.

APL

APL

Abbreviation for A Programming Language, a language originally developed for IBM mainframes and is not often found today.

applications package
progiciel m d'applications

Applications package. The name of a program or a set of programs accompanied by documentation and user manuals, which are programs designed to perform specific tasks, such as: a payroll package, a warehouse control program, or a robot control program to perform welding operations.
application specific integrated circuits (ASICS)

See ASICS.

archived file
fichier m mis en mémoire

A file archived. As the name suggests, this file is saved, for example, on magnetic tape and must be formatted (loaded) onto a disk or tape drive when required. The file does not remain on the computer permanently, so it does not take up space in memory.