Data processing

Data processing refers to the operations which are performed on

the data either to derive information from them or to order them

in files. These operations include functions performed both by

programmers and by automatic equipment.

The functions of programmers are to prepare, test, and document

computer programs. This step encompasses analysing a problem,

formulating an algorithm to solve it, translating the algorithm into

a high-level language, testing the program, and running it with the

data. The functions of the computer, on the other hand, are to

perform arithmetic and logical operations on the program and data

after they have been translated to machine code, and to make the

results of these operations accessible to humans.

Data may be processed in batch or in real time. The former means

grouping transactions and processing them as one unit, while the

latter refers to processing the data almost simultaneously as it is

generated. Another approach to data processing is structuring and

organizing the data so as to make them useful and available to

more than one particular user. This is called data base

management.

SECTION 7

Programming

UNIT 18

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