Input (computer)

from Wikipedia, the free encyclopedia

The input (English input ) of a computer program is what it needs for its execution. The term input describes both the data and the process by which it is transferred to the program. The term also describes the transfer of data to its substructures such as functions , procedures or operations via parameters within a program , which are then called input parameters .

The entry is made either directly via an input device such as mouse or keyboard , or data will be from a file is read or over a computer network transferred from another computer.

The terms input , processing and output are fundamental to electronic data processing and are referred to as the EVA principle . All common programming languages therefore define a standard input that is normally pre-assigned to the keyboard, but can also be assigned differently.

literature

  • Hermann Engesser (Ed.): Duden "Informatik" . 2nd Edition. Dudenverlag, Mannheim 1993, ISBN 3-411-05232-5 , pp. 222 .