GSCE Computer Science Quiz

What does CPU stand for in computer systems?

• Central Processing Unit

• Central Performance Unit

• Computer Processing Unit

• Central Power Unit

Which component of the CPU is responsible for managing the fetching, decoding, and execution of program instructions?

• Arithmetic Logic Unit (ALU)

• Control unit (CU)

• Cache

• Buses

What is the primary function of the Arithmetic Logic Unit (ALU) in a CPU?

Which type of memory is described as volatile, meaning it loses data when the computer is turned off?

• ROM

• EEPROM

• RAM

• SSD

What is the role of the clock within the CPU?

ROM is considered non-volatile because:

What is the correct sequence of steps in the Fetch-Decode-Execute cycle?

• Execute, Fetch, Decode

• Decode, Execute, Fetch

• Fetch, Decode, Execute

• Decode, Fetch, Execute

What is the function of a NOT gate in digital circuits?

• It takes two inputs and produces one output which is the AND of the inputs.

• It takes a single input and produces a single output which is the opposite of the input.

• It takes two inputs and produces one output which is the OR of the inputs.

• It takes a single input and produces two outputs.

According to the AND gate rule, what is required for the output to be positive?

• At least one positive input

• Two negative inputs

• Two positive inputs

• No input is required

What is the output of an OR gate if both inputs A and B are 0?

• 1

• 0

• 2

• -1