Components of a Computer
System
Learning Objectives
•
By the end of this lesson all of you will;
– define the terms hardware, software, input
device, storage device and output device
– describe the purpose of input devices, storage
devices and output devices;
Hardware
Hardware are the physical components of a computer
– eg the input devices, output devices, primary storage
(memory) and secondary storage (backing store),
Central Processing Unit etc. Note that input and output
devices are collectively known as peripherals. Examples are Monitor, Hard drive, Printer, CPU, Keyboard, Fan, Mouse, Motherboard, Microphone, Sound card.
Software
Software are the sets of instructions/
programs that are loaded into the memory of
the computer in order to perform a task or to
control the operation of the computer. examples are Operating systems, Word processors, Utilities, Web browsers, User interface, Game applications etc
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