Y9 Summer Revision v2

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What does CPU stand for?

What does RAM stand for?

RAM is volatile, meaning that if the power is turned off, the data is ​ (a)   . The computer uses RAM to store ​ (b)   .

• lost
• currently open programs and files
• saved
• the startup instructions for the computer

What does ROM stand for?

ROM is non-volatile, meaning that if the power is turned off, the data in ROM is ​ (a)   . ROM is used to store ​ (b)  

• saved
• the startup instructions to start up the computer
• lost
• currently open programs and files

The CPU has components such as the Control Unit and the ALU (​ (a)   ). The control is used to ​ (b)   to carry out instructions. The ALU is used to ​ (c)   .

• Arithmetic Logic Unit
• control the fetch-decode-execute cycle
• perform arithmetic and logic operations

The CPU fetches, decodes, and executes ​ (a)   , but can only process ​ (b)   instruction at a time. The speed at which a CPU carries out fetch-decode-execute cycles is measured in ​ (c)   (hertz), and these days, are measured in GHz. If a CPU is 3GHz, it can carry out 3 ​ (d)   instructions a ​ (e)   .

• instructions
• one
• Hz
• billion
• second
• million
• hundred
• minute

If a CPU has more cores, it will ​ (a)   the computer.

• increase the speed of
• slow down

Traditional media is ​ (a)   form of media, which includes ​ (b)   . These all existed before the use of ​ (c)   .

• an older
• film, TV, radio, print publishing
• computers
• newer
• computer games, interactive media, internet