Year 11 Diamond CPU

What is the hardware part of a computer that carries out the instruction of a computer program by performing the basic arithmetic, logical and input/output operations of the system?

• Central Processing Unit (CPU)

• Arithmetic Logic Unit (ALU)

• Control Unit (CU)

• Memory Address Register (MAR)

What are the two main components of a CPU?

• Arithmetic Logic Unit (ALU) and Control Unit (CU)

• Memory Address Register (MAR) and Data Bus

• Input Device and Output Device

• Registers and Buses

What does the control unit do?

• Directs the entire computer system to carry out stored program instructions

• Performs arithmetic and logical operations

• Stores the results of calculations

• Keeps track of the memory location of the next instructions

What are the functions of the arithmetic logic unit?

• Executes arithmetic and logical operations

• Stores instructions fetched from memory

• Transmits data between components

• Controls the fetching of instructions

What is the purpose of the Program Counter (PC)?

• Keeps track of the memory location of the next instructions

• Stores the results of calculations

• Carries data among the memory unit

• Stores instructions fetched from memory

What is the function of the Data Bus?

• Carries data among the memory unit, the I/O devices, and the processor

• Carries the address of data between memory and processor

• Carries control commands from the CPU

• Stores the most recently fetched instructions

What is the role of input/output devices in relation to the CPU?

• Read data into main memory and output information from a computer

• Store the results of calculations

• Transmit data between components

• Control the fetching of instructions

What is the primary function of the memory unit in a computer system?

• Stores data and instructions for the CPU

• Processes data and performs calculations

• Transmits data between the CPU and I/O devices

• Controls the execution of instructions

Which component is responsible for executing instructions in a computer?

• Central Processing Unit (CPU)

• Random Access Memory (RAM)

• Input/Output Controller

• Storage Device

What is the purpose of the Cache Memory?

• Stores frequently accessed data for quick retrieval

• Holds the operating system and application programs

• Maintains the system's power supply

• Facilitates communication between the CPU and peripherals