A Complete Explanation of How Computer Systems Work

A Complete Explanation of How Computer Systems Work - Data processing using computers as a medium is known as Electronic Data Processing (EDP). Data processing is a process in which a data is processed or changed into a form that is more useful and more meaningful, which is in the form of an information.

So that computers can be used to process a data into information, a system called a computer system is needed. The system referred to here consists of elements that are interconnected to form a single entity that can be used to carry out the main objectives of the system.

In this article I will explain how the computer system works. Starting from the data entered, processed, until the data is printed, displayed, and issued again. Read more if you want to know how data is processed into useful information.

1. Input (Input)

The input stage is the initial stage of the processing that occurs in a computer system. This stage is the entry of raw data into a computer system through an input device. Examples of input devices include keyboard, mouse, scanner, etc. These tools are used to enter data to be processed. Like the keyboard, it is used to enter letters, numbers, and other symbols into the computer which will then be processed.

2. Processing

At this stage, the data entered through the input device will be processed. This stage of the process is carried out by the processing device, the CPU. Which CPU can perform calculation and logic functions for comparison (ALU) and also control (CU). At this stage, the raw data is processed in such a way that the data is ready to be printed into more useful information.

3. Expenditures (Output)

At this stage, the data that was already entered through the input device, then processed by the CPU can be printed when it's ready. This printing can be in the form of hardcopy and softcopy. Hard copy means using physical media such as paper or others. Softcopy means displaying visual images through a monitor or projector. Included in the output equipment here are, monitor, projector, printer, etc.

4. Storage

This stage is the process of recording the results of processing to a storage device (storage device) and can be used again as input for the next process. So, the raw data that has been processed can be stored on a storage media (Storage device) so that later it can be used again at any time if you want to print the data.

In the picture, two arrows appear in opposite directions, this shows that data can be saved and retrieved if needed for data processing purposes.

Actually, this data processing has no end. Evidently, from the information obtained from previously processed data, it can still be developed into a more useful information.