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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 system was used extensively by early mini computers ?

  • Binary number
  • Decimal number
  • Hexadecimal number
  • Octal number

Answer: Option D

Explanation:

Note : Please note that question is asked about early mini computers.

2. User programs interact with I/O devices through ?

  • Operating System
  • Hardware
  • Buses
  • Processor

Answer: Option A

3. 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

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

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

Answer: Option B

5. Which table handle store address of interrupt handling subroutine ?

  • Vector table
  • Symbol link table
  • Interrupt vector table
  • None of above

Answer: Option C

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