Computer Science: Systems Architecture

Computer Science: Systems Architecture

Take your time and answer correctly, scores will be recorded and points awarded to all who achieve 100%

You need to know the answers of these questions as they are likely to appear in your GCSE exam

Multiple Choice

What does CPU stand for?

• Central Processing Unit

• Computer Processing Unit

• Computer Picking Unit

• Central Processing UNIX

Multiple Choice

Which of the these in NOT a measurement of CPU speed?

• Hertz (Hz)

• AhhitHertz (AiHz)

• MegaHertz (MHz)

• GigaHertz (GHz)

Multiple Choice

In the fetch - decode - execute cycle, which part is carried out in the control unit (CU)?

• Fetch

• Decode

• Execute

Multiple Select

What are the advantages of cache memory

• Runs at CPU speed

• Keeps frequently used instructions to use again quickly

• Reduces the number of times the CPU has to access the RAM

• Cache is very cheap compared to RAM

Multiple Choice

Which CPU component carries out all of the calculations?

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

• Registers

Multiple Select

What are advantages of "Embedded Systems"?

• Usually small which means cheap to manufacture

• Very reliable

• Will be perfectly suited/customised for the particular purpose it’s made for

• Can be used in safety critical environments so must be heavily tested