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What is meaning of DMAC ?

  • Dual memory access controller
  • Direct memory access controller
  • Direct memory access computer
  • Direct memory accumulator controller

Answer: Option B

Similar Questions :

1. Which memory is assembled between main memory and CPU ?

  • Primary Memory
  • Secondary Memory
  • Registers
  • Cache Memory

Answer: Option D

2. A keyboard has which type of asynchronous transfer mode ?

  • Serial
  • Parralel
  • Optimal
  • Joint

Answer: Option A

Explanation:

In serial transfer each bit is sent one after the another in a sequence of event and requires just one line.

3. Instruction that are used for reading from memory by an IOP called ?

  • Commands
  • Pulses
  • Blocks
  • Interrupt

Answer: Option A

4. Why we need to have secondary storage ?

  • Store large volume of data that exceed the capacity of main memory
  • Perform arithmatic and logical operations
  • To give power to the system too
  • To help processor in processing

Answer: Option A

5. ____ processor has to check continuously till device becomes ready for transferring the data ?

  • DMA
  • Interrupt-initiated I/O
  • IOP
  • DCP

Answer: Option B

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