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

Fill in the Blank

Fill in the end of this sentence:

The CPU fetches instructions from "______"

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

Fill in the Blank

Fill in the missing word:

The higher the number of cores in a CPU helps the computer to better "_________"

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

Fill in the Blank

What CPU register stores the address of the location in memory we want to read or write to?

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