This document discusses computer hardware and aims to examine different input and output devices. It defines hardware as the physical parts of a computer system and software as programs that help hardware work. It describes various input devices like keyboards, mice, and cameras. Output devices discussed include printers, monitors, and speakers. The document compares printer types and discusses their resolution, speed, and cost. It also covers backing storage devices and their various storage capacities.
4. The Computer System Input Devices Processor CPU Output Devices Backing Storage Devices Main Memory RAM and ROM
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11. Comparison of Printers Type of Printer Speed Cost Noise Quality Dot-matrix Slow Cheap Noisy Poor Ink jet Medium Mid Quiet Good Laser Fast Expensive Very Quiet Very Good
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17. The Computer System Input Devices Processor Central Processing Unit Output Devices Backing Storage Devices Main Memory RAM and ROM
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