Technical Terms - Hardware (A-Z) - Control Unit

What is the function of a control unit in a processor?

• Displays output

• Performs calculations

• Controls input and output

• Stores data

Which component of a control unit loads individual instructions from memory?

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

• Instruction Register (IR)

• Program Counter (PC)

What does the instruction register (IR) do in a control unit?

• Decodes instructions

• Performs calculations

• Fetches next instruction

• Increments program counter

How many important components are included in a typical control unit?

• Four

• One

• Two

• Three

What is the clock speed of a control unit dependent on?

• Operating system

• Corresponding CPU

• Input devices

• Memory size

What is the function of the program counter (PC) in a control unit?

• Fetches next instruction

• Increments program counter

• Decodes instructions

• Loads instructions from memory

What is the role of the control unit in a processor?

• Receives instructions from a program

• Sends output to memory

• Performs calculations

• Stores data

How many operations per second can a 3 GHz processor handle?

• One million

• Two billion

• Three billion

• One billion

What does the control unit do after each instruction is executed?

• Fetches next instruction

• Increments program counter

• Decodes instructions

• Loads instructions from memory

What type of circuit is a control unit in a processor?

• Integrated circuit

• Digital circuit

• Analog circuit

• Parallel circuit