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Showing posts from June, 2011

Explain The Concept of A Computer System

A system is a set of inter related components that work together to fulfill a purpose. For example a Road Transportation System will consist of the parts - roads, vehicles- trucks, buses, vans, cars etc, passengers, the staff for ticketing and maintenance of vehicles and roads etc. And the transportation system will fulfill the purpose of carrying of passengers and luggage from place to place. Similarly, a computer system consists of many components that work together to fulfill the purpose of data processing. A Computer system consists of the following four parts: 1.    Hardware 2.    Software 3.    Data 4.    User 1.    Hardware The mechanical devices that makeup the computer are called HARDWARE , for example, Keyboard, hard disk, monitor, processor and mother board etc. Hardware are physical devices . They can be touched. Hardware device are interconnected and perform input, processing and output operations. 2.    Software Software is the set of instructions given

What are uses of computer at Home

Uses of Computer Today, computer is used in almost every field of life. The use of computer has made different tasks very easy for us. Computer can be used at home in the many different ways. Explain different uses of computers at Home Computer has made a very vital impact on our society. People are using computers for performing different tasks quickly and easily. In fact, computer has made our life more comfortable.   Uses of Computer at Home Computer can be used at home in the following ways: 1.  Home Budget Computer can be used to manage the home budget. What are the Uses of computer at home You can easily calculate your expenses and income with the help of a software like Microsoft Excel. In MS Excel you can prepare a simple worksheet to calculate your daily expenses and income. 2. Computer Games An important use of computer at home is playing games. Different types of games are available. And if you have internet connection, then you can play games online

What are the basic operations of a computer

There are five basic operations of a computer as follows: 1. Inputting It is the process of entering data and instructions into computer system. Input is performed by input devices like keyboard, mouse, scanner, digital camera and microphone etc. 2. Storing It is the process of saving data and instructions to make them available as and when required in future. Data and programs are stored on permanent storage devices, especially on hard disk. Other permanent storage media include CD - Compact Disk, DVD - Digital Video Disk and Zip Disk etc. 3. Processing It is the process of performing arithmetic and logical operations on data to convert them into useful information. Processing is performed by CPU- Central Processing Unit. CPU is also called Processor. It is the brain of computer. 4. Outputting It is the process of producing useful information after processing data, for example, printed reports for user. Output is presented by output devices like monitor, printe