Input & Output Devices - Computer MCQs and Notes for PST JEST EST Jobs
Input & Output Devices - Computer MCQs and Notes for PST JEST EST Jobs Simple notes on input and output devices of a computer with 10 important MCQs for PST, JEST and EST jobs test in Sindh. Practice online now. Input & Output Devices of Computer Computer Notes and MCQs for PST, JEST and EST Jobs Theory and Key Notes Input devices send data and instructions into the computer: keyboard, mouse, scanner, microphone, joystick, webcam, barcode reader. Output devices show the result of processing: monitor, printer, speaker, projector, plotter. Hard copy is output on paper (printer, plotter). Soft copy is output on screen or as sound (monitor, speaker). Input/Output (both) devices: touch screen, modem, headset with microphone. CPU (Central Processing Unit) is the brain of the computer. It has the ALU, Control Unit and registers. Mouse is a pointing device. OMR reads marked bubbles, MICR reads cheque numbers, OCR reads printed text. 10 Important MCQs (Click...