MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -5. Which of the register/s of the processor is/are connected to Memory Bus? Explanation: MAR is connected to the memory BUS in order to access the memory.

Detailed explanation-2: -MAR Register Memory Address Registers (MAR) are the complete version of MAR. The memory address register is used to retrieve instructions and data from memory, and to aid in their execution. The central processor unit frequently uses the memory address register to read and store any sort of data.

Detailed explanation-3: -Modern processors use either static or dynamic RAM as main memory, with the latter usually accessed via one or more cache levels. Processor registers are normally at the top of the memory hierarchy, and provide the fastest way to access data.

Detailed explanation-4: -In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU registers, or the address to which data will be sent and stored via system bus.

Detailed explanation-5: -4. Which register in the processor is single directional? Explanation: The MAR is single directional as it just takes the address from the processor bus and passes it to the external bus.