Multiple choice technology

DMA is particularly suited for data transfer between the

  1. disk drive &RAM

  2. disk drive & ROM

  3. both

  4. none
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Direct Memory Access (DMA) is designed to transfer large blocks of data directly between peripherals and memory without CPU intervention. It is most efficient for high-speed devices like disk drives transferring data to RAM. ROM is read-only memory used for storing firmware, so data transfer between disk drive and ROM is not a typical DMA use case.

AI explanation

To answer this question, we need to understand the concept of Direct Memory Access (DMA).

DMA is a technique that allows devices to transfer data directly to and from the computer's memory without involving the CPU. It is particularly useful for high-speed data transfer and offloading the CPU from handling data transfers.

Option A) Disk drive and RAM - This option is correct. DMA is well-suited for data transfer between the disk drive and RAM. When data needs to be read from or written to the disk drive, DMA can be used to transfer the data directly between the disk drive and RAM, bypassing the CPU's involvement. This speeds up the data transfer process and reduces the burden on the CPU.

Option B) Disk drive and ROM - This option is incorrect. DMA is not typically used for data transfer between the disk drive and ROM. ROM (Read-Only Memory) is a type of memory that is typically used for storing permanent data, such as firmware or software instructions. DMA is not required for transferring data between the disk drive and ROM because the data in ROM is typically read-only and does not require frequent updates or transfers.

Option C) Both - This option is incorrect. DMA is not equally suited for data transfer between the disk drive and both RAM and ROM. DMA is primarily used for data transfer between the disk drive and RAM, as explained in Option A. It is not commonly used for data transfer between the disk drive and ROM.

Option D) None - This option is incorrect. DMA is suitable for data transfer between the disk drive and RAM, as explained in Option A. Therefore, the correct answer is Option A.

The correct answer is A) disk drive and RAM. This option is correct because DMA is particularly suited for data transfer between these two devices, improving data transfer speeds and reducing CPU overhead.

Keep practicing — related questions