MICROPROCESSOR

Which bus does the program counter output appear on?. The address bus. The data bus. The control bus.

What device monitors the sign of the accumulator's value?. Status register. PC register. Instruction decoder.

What is the output of a program counter used for?. Fetching the next instruction. Storing results. Activating hardware interrupts.

What is the function of the accumulator in a microprocessor?. To locate the next instruction address. Performs arithmetic and logic operations. Stores device settings permanently.

Which bus allows control signals to manage processor operations?. Control bus. Input bus. Data bus.

Which of the following describes the instruction cycle?. Fetch, decode, execute. Control-execute. Data fetch and decode.

What best defines a status register?. Processor state indicator. Temperature sensor. Motherboard info.

What is the role of registers in digital computers?. Permanently store information. Track program instructions. Temporarily store data.

What register acts as an instruction pointer?. Instruction register. Program counter. Stack pointer.

Which of the following does not store data?. ALU. Register. Instruction decoder.

Which processor section handles arithmetic tasks?. Status register. Control unit. Arithmetic Logic Unit.

Which component ensures correct instruction sequencing?. ALU. Program counter. Accumulator.

Which technology level does a microprocessor represent?. VLSI. MSI. SSI.

Why does the CPU require a data bus?. To decode operations. To read and write data. To control peripheral devices.

Which device interprets instructions inside the CPU?. Data latch. BIOS chip. Instruction decoder.

Why are registers faster than memory?. They are further from the CPU. They store more data. They are inside the CPU.

Which part of the processor controls all other parts?. Arithmetic unit. Status register. Control unit.

What makes a register different from RAM?. Registers are external. RAM is faster. Registers are internal and much faster.

Which of these is not typically a CPU register?. Accumulator. Stack pointer. Hard disk controller.

What unit handles branching in a program?. Instruction decoder. ALU. Program counter.

Which components form the core communication through the microprocessor's bus?. CPU, Memory, Input/Output. Screen memory, Printer, Cache. Control unit, Cache, Decoder.

Which unit has the fewest internal components?. Graphics card. CPU. ALU.

Which unit is involved in performing addition and subtraction?. Control unit. Cache. Arithmetic Logic Unit.

The primary role of the program counter is to: Decode instructions. Point to the next instruction. Perform logic operations.

Which register stores the address of the next instruction to be executed?. ALU. Program counter. Instruction register.

What is the main difference between the address bus and the data bus?. They both carry control signals. Data bus is slower than address bus. Address bus transmits location; data bus transmits data.

Which of the following is true about program execution?. Only the CPU register determines execution sequence. Instructions are stored sequentially and the program counter tracks them. The program is stored randomly in memory.

What type of bus allows bidirectional data flow?. Address. Data. Control.

What is the main register used in calculations within the CPU?. Program counter. Instruction register. Accumulator.

In a typical microprocessor, what directs the operation of the ALU?. Control unit. Status flag. Stack.

Which type of bus allows data flow into and out of the CPU?. One way bus. Two way bus. Control bus.