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log in/on/off/out
abonnement m

Subscription. The term used when entering or exiting a large computer system via a terminal. Thus limiting the number of users and the type of use.

Logo

Logo. A powerful high-level language developed by Simon Papert. This language was developed specifically to teach structural programming and allow ideas to be examined by young and old alike. The capabilities of this language include turtle layouts (building shapes and patterns by moving and naming the screen), list processing, and managing procedures and databases. Logo can also be used to control

terrestrial turtles and other small electronic devices. This language is widely used in education.

look - up table
table f de consultation

Inspection table. All telephone dialing codes for all towns and cities in Britain can be stored in a table in the computer's memory. When typing the name of the place Cambridge, for example, the computer uses a lookup table to find the correct order code, in this case 0223. This table may be arranged as an array.

loop
boucle f

A loop. Just as a rope loop ends where it started, so does a loop in a computer program. The only difference is that the program continues in the loop until a certain condition is met.

For example, sorting a set of numbers in ascending order requires the computer to execute a series of instructions over and over again (a loop) until all the numbers have been sorted. One way to do this is:

- Compare the first and second numbers.
- If the first is larger, swap the two numbers.
- Now repeat this loop with the second and third numbers.

. . And so on. When all the numbers have been processed:

- Repeat the loop, starting with the first and second numbers again. Going through all the numbers without changing them means that they are already sorted in ascending order. Note that a loop inside another loop is called a nested loop.

low-level language
language m non évolué

Primary language. A name given to a computer language that resembles machine code and is easy to convert to. Each instruction is converted into a single machine code that is executed by the computer as a single operation. These languages ​​are difficult to program because they depend on the type of central processing unit (CPU) used and cannot be transferred across different computers. Examples of these primary languages ​​include: 6502, X80 Zilog, and the Intel 80286 interpreted language. They are used when speed is important. In a high-level language (such as BASIC or FORTRAN), each instruction requires a number of machine code operations, but they are easier to program.

LPM
LPM

Lines per minute. Abbreviation for lines per minute, which is the speed at which printers produce paper copies.

LSI

Abbreviation for large-scale integration.