Data Processing

Data processing often referred to as D.P is a process of collecting the data together and converting the data into information. The method used for collecting the data may be manual, mechanical or electronic.
Data processing is a term mostly associated with business and commercial work. Since computers are being used in the processing of data the term “electronic data processing” may also be used.

Electronic Data Processing

Data processing means the transformation of data into more meaningful results for carrying out scientific, business activities. The result of data processing is called “information”. The transformation of data consists of a sequence of operations. The sequence is called “procedure”.
Input -> Processing -> Output
Data processing is a system which takes data as an input, carries out the required processing on the data and produces the information. The system is called “MANUAL” when processing is performed by human beings and “AUTOMATIC” when machines are used. When computers are used for data processing the system is called “Electronic Data Processing”.

Elements of EDP

There are five basic elements in a processing system which uses a computer for processing data. These are hardware, software, user program, procedure and personnel.

1. HARDWARE

All the physical parts which make up a computer system called hardware i.e. all the devices or peripherals which performs the data processing operations.

2. SOFTWARE

The software consists of programs and routines whose purpose is to make the computer useable for the user. This software normally supplied by computer manufacturers or software manufacturers.

3. USER PROGRAM

A program consists of related instructions to perform operations. A data processing job may require a number of programs.

4. PROCEDURE

The operations of data processing system require the procedure for use, in preparing data, for operating the computer and distributing the output after processing.

5. PERSONNEL

E.D.P basically needs three kinds of skilled personnel.
a) System Analyst
b) Programmer
c) Operator

a) SYSTEM ANALYST

System Analyst studies information needs and data processing requirements, design a data processing system and prepare specification.

b) PROGRAMMER

A Programmer writes a programmer on specification by System Analyst.

c) OPERATOR

An Operator is a person who operates the computer system.