Transcription of BASIC CONCEPTS OF COMPUTER
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BASIC CONCEPTS OF COMPUTER
BASIC CONCEPTS of COMPUTER :: 11 BASIC CONCEPTS OF INTRODUCTIONA COMPUTER is a programmable machine designed to performarithmetic and logical operations automatically andsequentially on the input given by the user and gives thedesired output after processing. COMPUTER components aredivided into two major categories namely hardware andsoftware. Hardware is the machine itself and its connecteddevices such as monitor, keyboard, mouse etc. Software arethe set of programs that make use of hardware for performingvarious OBJECTIVESA fter going through this lesson you would be able to: familiarise yourself with characteristics of computers identify the BASIC components of a COMPUTER explain the importance of various units of a COMPUTER differentiate between system software
screen moves in the same direction. Fig. 1.5: Mouse Trackball: A trackball is an input device used to enter motion data into computers or other electronic devices. It serves the same purpose as a mouse, but is designed with a moveable ball on the top, which can be rolled in any direction. Touchpad: A touch pad is a device for pointing (controlling
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