SUBJECT: INFORMATION COMMUNICATION TECHNOLOGY
TERM: 1ST TERM
CLASS: PRIMARY 5
TOPIC; Classification By Size
BEHAVIORAL OBJECTIVES: At the end of the lesson, pupils should be able to:
Classification By Size
There are three different sizes of computer.
Microcomputers are the most widely used type of computers. They are the smallest type of computers. They are also the cheapest type of computers.
They are used in schools, offices and at home.
The desk-top computer and portable computers, such as the laptop, notebook and palm top computers are examples of microcomputers.
A minicomputer is larger than a microcomputer. The minicomputer also works faster and is more expensive than the microcomputer. Minicomputers are used in medium-sized factories and companies.
Mainframe computers are much bigger, faster and more powerful than minicomputers. A mainframe computer is made up of separate units. The separate units are combined together to form a network. Mainframe computers are more expensive than minicomputers. They are mainly used in government departments, banks and universities. Mainframe computers are used in NECO, JAMB and WAEC offices.
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