Alevel computing flashcards

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  • Created by: omeiza97
  • Created on: 09-03-18 11:40
What is a Bus?
A set of parallel wires connected to two or more system components.
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What is the CPU?
The processor which enables it to carry out its task of executing instructions.
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What is the ALU?
The ALU performs arithmetic and logical operations such as ADD, SUBTRACT, MULTIPLY, DIVIDE on fixed or floating point numbers.
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What is the control unit?
The control unit controls and coordinates activities of the CPU, directing the flow of data between the CPU and other devices.
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What are the three types of buses?
Address Bus, Data bus and Control Bus
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What is the process of the data bus?
The data bus consists of 8, 16, 32 or 64 separate lines, providing a bi directional path for moving data and instructions between system components.
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What is the process of the address bus?
The address bus transmits the memory addresses of word that are used as operands in program instructions, so that the data can be retrieved and sent back to the processor.
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What are registers?
Registers are special memory cells that operate at very high speed.
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Other cards in this set

Card 2

Front

What is the CPU?

Back

The processor which enables it to carry out its task of executing instructions.

Card 3

Front

What is the ALU?

Back

Preview of the front of card 3

Card 4

Front

What is the control unit?

Back

Preview of the front of card 4

Card 5

Front

What are the three types of buses?

Back

Preview of the front of card 5
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