أكاديميا - كولنز - معاجم الجيب العلمية - الكمبيوتر - انكليزي - فرنسي - عربي الحرف ٢_a

Academia - Collins - Pocket Scientific Dictionaries - Computer - English - French - Arabic Letter 2_A

ADC

See A to D converter .

adder
additionneur m

Adder. A device that performs addition on digital signals, giving the sum and the carryover number together. A half-adder has two inputs, each of which can be zero 0 or one 1, while a full-adder has three inputs.

For example, when adding two binary numbers electronically, the first column from the right can be added by a half-adder, while the other columns require a full-adder due to the presence of a carryover number from the previous column:

1001101
0110111 +
- ... For example, address 142 has the letter T, although both may be stored in binary notation. Just as the word CAT is stored in three locations, more than one location may be used for a single number:

Content -- Address
140 -------- C
141 -------- A
142 ----------T
255 -------- 143

address bus
bus m d'adresse

Address bus. A main path (a set of wires) along which signals travel to indicate a particular address. Data can then be placed at or taken from the address along the data bus.

address modification
modification f d'adresse

Address modification. The process by which an address that is part of a program instruction is changed, say to a higher address (i.e. to the next address) each time the instruction is executed. This is very useful if a series of inputs are to be placed at successive addresses.

Aiken

Aiken

Aiken. Howard Aiken. An American scientist who recognized the importance of the analytical engine invented by Babbage and developed the automatic sequence controlled calculator (ASCC) which was made in the mid-forties and was the first automatic computer. This electromechanical machine was provided with the instruction program via a paper tape.

ALGOL

ALGOL. Abbreviation for (Algorithmic Oriented Language) is a high-level programming language developed in Europe at the same time as FORTRAN in the United States. The ALGOL60 language is a language designed to solve mathematical and scientific problems, while the ALGOL68 language is a more powerful language developed in 1968 for various uses.

algorithm
algorithme f

Algorithm. A set of instructions or steps designed to solve a specific problem. There is no more than one starting point in the algorithm, while all its paths end at the same end point. These steps can be performed by computer or on paper using different inputs or values.

algorithmic oriented language

See ALGOL.