Functions of a PC

Personal computer has a microprocessor for processing data, a keyboard for entering data, a monitor for displaying data and a storage device for storing data.PC performs many functions such as :

> Accepting Data- Accepts data input from the user through various input devices like the keyboards, mouse,scanner ,digital camera or microphone.

Storing Data- Enables you to storage large amounts of data. this also helps in recovering the data stored earlier. It can store the data permanently on the storage devices such as the hard didk drive, floppy disk drive, physical memory, optical drives or tape drives.

Processing Data- Performs operations on the input data. A set of instructions starts these operations. These instructions are either stored in the memory or built into the micrprocessor. Data processing is the process of manipulating the data using a set of instructions and producing the desired output.

Displaying Data- Shows processed data to the user. This data can be in the form of numbers, characters, or pictures. PC displays the output through various output devices, such as monitors ,printers or speakers.

Introduction of computer

Computer is an integral part of every day life. We use personal computer to perform various tasks . Data storage and processing are the important tasks performed by the pc. It takes data from user, processes it, and gives the output in a prescribed manner . The use of PC makes mathematical calcilations easier . scientists use the pc for scientific applications such as weather forecasts , research and chemical analysis.
Pc provides faster means of communication through the internet by sending and receiving e-mails. We can use the internet to gain information on any topic. We can use the pc for entertainment, such as for watching movies using Dvds ,listening to music using CDs and Mp3s. Computer is an electronic device that accepts ,stores and processes the data and returns the result or output.