Year 9 revision

What does CPU stand for?

• Central Processing Unit

• Computer Processing Unit

• Computer Picking Unit

• Central Processing UNIX

Fill in the end of this sentence:

The CPU fetches instructions from " (a)   "

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

• Fetch

• Decode

• Execute

Fill in the missing word:

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

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

(a)  

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

What is the function of the cache memory in a computer?

• To provide extra storage space

• To act as the main memory

• To speed up the access to frequently used data

• To control input and output devices

Which of the following is a volatile type of memory?

• Hard Disk

• SSD (Solid State Drive)

• ROM (Read-Only Memory)

• RAM (Random Access Memory)

Which component of the computer is primarily responsible for arithmetic and logic operations?

• Control Unit

• Arithmetic Logic Unit (ALU)

• Memory Unit

• Input/Output Unit

What role does the motherboard play in a computer?

• It acts as the primary storage device.

• It provides the computer's basic input/output system (BIOS).

• It connects all of the computer's components and allows them to communicate.

• It supplies power to the computer.