OCR J275 Hardware Part A

What does CPU stand for?

• Central Processing Unit.
• Central Parallel Unit.

What is the purpose of the CPU?

• To carry out the processing of the computer, to fetch and execute instructions.
• To control the computer

When the computer is switched on the CPU starts to perform its main function which is running an endless?

• Decode-Fetch-Execute Cycle.
• Execute-Decode-Fetch Cycle.
• Fetch-Decode-Execute Cycle.
• Fetch-Execute-Decode Cycle.

The speed of the fetch-decode-execute cycle is stated in _______?

• Hertz
• Gigabyes
• Kilobyte
• Terabyte

The _____ _____ is the name of the number of electrical cycles per second that the computer can process 

• Cache memory
• Clock speed.
• CPU speed.
• Hard drive.

A clock speed of 500Hz means how many clock cycles per second are being carried out?

• 500
• 5 million
• 5 billion
• 5 trillion

A clock speed of 3MHz means how many clock cycles per second are being carried out?

• 300
• 3000
• 3 million
• 3 billion

A clock speed of 2.4GHz means how many clock cycles per second are being carried out?

• 240 
• 2,400,000
• 2,400,000,000
• 2,400,000,000,000

The higher the clock speed, the faster the CPU will run - True or False?

• True
• False

What is meant by a quad core CPU?

• The computer has 4 independant processors within the CPU that work simultaneously together.
• The computer has 2 independant processors within the CPU that work simultaneously together.