How computers work The CPU & Memory. The parts of a computer.

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How computers work The CPU & Memory

Transcript of How computers work The CPU & Memory. The parts of a computer.

Page 1: How computers work The CPU & Memory. The parts of a computer.

How computers work

The CPU & Memory

Page 2: How computers work The CPU & Memory. The parts of a computer.

The parts of a computer

Page 3: How computers work The CPU & Memory. The parts of a computer.

The CPU

MainMemory(RAM)

Arithmetic / Logic unit

Control Unit

Input&

OutputDevices

Data

Control

Instruction

Page 4: How computers work The CPU & Memory. The parts of a computer.

The control unit

Control Unit

Uses electric signals to carry out, execute stored program instructions. This unit communicates with the memory and the arithmetic / logic unit

Page 5: How computers work The CPU & Memory. The parts of a computer.

Memory

MainMemory(RAM)

RAM holds data and instructions for processing. Memory stores program instructions or data only as long as the program is still being used. Once you close the program then everything is lost.

Page 6: How computers work The CPU & Memory. The parts of a computer.

Arithmetic / Logic unit

Arithmetic / Logic unit

Performs 4 kinds of arithmetic operations / mathematical calculations (addition, subtraction, multiplication & division)

Page 7: How computers work The CPU & Memory. The parts of a computer.

The CPU & movement of data and instructions

MainMemory(RAM)

Arithmetic / Logic unit

Control Unit

Input&

OutputDevices

Data

Control

Instruction

Page 8: How computers work The CPU & Memory. The parts of a computer.

Today’s lessonhttp://homepage.cs.uri.edu/faculty/wolfe/book/Readings/Reading04.htm

1. Explain with simple diagrams & short explanations how a CPU works. You should include:

• Control unit

• Arithmetic/Logic unit

• Memory (RAM)

http://homepage.cs.uri.edu/faculty/wolfe/book/Readings/Reading04.htm
http://homepage.cs.uri.edu/faculty/wolfe/book/Readings/Reading04.htm

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