Computer Technologies Quiz

What are the main parts of the CPU?

• ALU, Control Unit, Registers, IAS

• Data Bus, Address Bus, Control Bus

• Keyboard, Monitor, Webcam, RAM

• Word Processors, Operating Systems, Games, Web Browsers

What is the function of the Control Unit in the CPU?

• Perform arithmetic calculations

• Manage how instructions are executed and control the fetch-decode-execute cycle

• Transfer binary data between memory locations

• Carry out logical operations on data

Which register holds the address of the next instruction to be fetched and executed?

• Current Instruction Register (CIR)

• Memory Data Register (MDR)

• Memory Address Register (MAR)

• Program Counter (PC)

What is the function of the Data Bus in the CPU?

• Holds the RAM address you want to read to or write from

• Carries the addresses of memory locations

• Transfers the binary data between memory locations

• Sends signals to control when things happen

What is the purpose of the Fetch-Decode-Execute cycle in the CPU?

• To perform logical operations on data

• To manage how instructions are executed

• To fetch, decode, and execute instructions in a program

• To hold the data being worked on and the results of arithmetic and logical operands

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

• Carry out calculations and logical decisions

• Send signals to coordinate how the processor works

• Hold the instructions and data ready to be used by the CPU

• Transfer binary data between memory locations

What is the purpose of the Immediate Access Store (IAS) in the CPU?

• To hold the RAM address you want to read to or write from

• To carry out the fetch-decode-execute cycle

• To store the results of any processing done by the CPU

• To hold programs and data ready to be fetched and executed by the CPU

What is the function of the Accumulator in the CPU?

• Holds the address of the next instruction to be fetched and executed

• Holds the current instruction being executed

• Holds the data being worked on and the results of arithmetic and logical operands

• Holds information about the last operation

What are the three buses used by the CPU?

• Accumulator, Status Register, Interrupt Register

• Data Bus, Address Bus, Control Bus

• ALU, Control Unit, Registers

• Word Processors, Operating Systems, Games

What is the main function of the Memory Address Register (MAR) in the CPU?

• Holds the RAM address you want to read to or write from

• Holds the data being worked on and the results of arithmetic and logical operands

• Holds the current instruction being executed

• Holds the address of the next instruction to be fetched and executed