QUESTION 1
Explain what a computer system is; use a diagram to depict the different components of the
system and how they operate. (25 marks)
A computer system is a collection of hardware and software components working together to perform various tasks efficiently and effectively. It consists of input devices, processing unit, output devices, storage devices, and communication devices.
Input devices such as keyboard, mouse, scanner, etc., allow users to provide data and instructions to the computer system. The processing unit executes programs, performs calculations, and manages data. It consists of the CPU (Central Processing Unit), memory (RAM), and other components necessary for processing tasks.
Output devices such as monitor, printer, speakers, etc., display information generated by the computer system to the user. Storage devices such as hard drive, SSD, USB flash drive, etc., store data and programs permanently or temporarily. Communication devices such as network interface card, modem, router, etc., enable the computer system to communicate with other systems or devices.
Diagram:
Input Devices --> Processing Unit --> Output Devices
|
v
Storage Devices
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v
Communication Devices
This diagram illustrates how data and instructions flow through the different components of a computer system, starting from input devices to the processing unit, then to output devices, storage devices, and communication devices. Each component plays a crucial role in the overall functioning of the computer system.