SYSTEM UNIT (CPU II)
DATE: FRIDAY, 1ST MAY, 2020.
CLASS: PRIMARY 3 SUBJECT: COMPUTER STUDY
TOPIC: SYSTEM UNIT (CPU II)
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The Central Processing Unit is attached to the motherboard in the system unit. The CPU is also known as the brain of the computer.
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The CPU is divided into three parts, which are:
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(a) Arithmetic & Logic Unit (ALU):
The ALU carries out arithmetic operations like addition, subtraction, multiplication and division of numbers in the computer.
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(b) Control Unit (CU)
The CU controls the flow of information in the computer system.
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(c) Memory
The memory of the computer system is divided into two, which are the
(1) ROM: Read Only Memory
(2) RAM: Random Access Memory
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Questions:
- The CPU has _____ types of memory? (a) 4 (b) 6 (c) 2
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- _________ controls the flow of information through the control unit (a) CPU (b) ALU (c) CU
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- __________ carries out operations like additions, subtraction, multiplication and division of numbers (a) Control Unit (b) Arithmetic and Logic Unit (c) Fax machine
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- The two primary main memories are ______________
(a) drum & dram (b) ROM & RAM (c) tom & cow
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- List the three main parts of a CPU
(a) ______________
(b) ______________
(c) ______________