Yr7- Understanding computers Lessons 1-3

What is Hardware?

• Programmes you instal onto a computer

• Physical components you can touch of a computer

• Components of the computer you are unable to touch

• The process that the computer carries out.

What type of device is this? (Printer)

• Input

• Output

What type of device is this? (Projector)

• Input

• Output

What type of device is this? (Microphone)

• Input

• Output

What type of device is this? (Mouse)

• Input

• Output

What type of device is this? (Smartphone screen)

• Input

• Output

• Input and Output

What is the purpose of the CPU?

• To process all the data and instructions.
• To turn the computer on.
• To create PowerPoint presentations.
• To provide power to the computer.

CPU stands for

• Computer Processing Unit
• Central Processing Unit
• Core Processing Unit
• Central Power Unit

The CPU fetches instructions from.... and executes those instructions.

• Memory

• ALU

• ROM

• Input Device

CPU carries out a cycle called___. 

• Execute-decote-fetch
• Fetch-decode-execute
• Fetch-execute-decode
• Decode-execute-fetch