Components of a computer system

Components of a computer system

Basic Operations or Functional Components of Computer Computer Organisation/Block diagram of computer Input: This is the process of entering data and programs into the computer system. Input devices areKeyboard.,Image scanner,Microphone,Pointing device, Graphics tablet, Joystick, Light pen, Mouse, Optical, Pointing stick, Touchpad, Touchscreen, Trackball,Webcam, Softcam etc. Control Unit (CU): The process of input, output, processingand storage […]

Characteristics of a computer

Speed A computer works with much higher speed and accuracy compared to humans while performing mathematical calculations. Computers can process millions (1,000,000) of instructions per second. The time taken by computers for their operations is microseconds and nanoseconds. Accuracy Computers perform calculations with 100% accuracy. Errors may occur due to data inconsistency or inaccuracy. Diligence […]


Computer memory is the storage space in the computer,where data is to be processed and instructions required for processing are stored. The memory is divided into large number of small parts called cells. Each location or cell has a unique address, which varies from zero to memory size minus one.