Question Detail

User programs interact with I/O devices through ?

  • Operating System
  • Hardware
  • Buses
  • Processor
Similar Questions :

1. Which technique helps processor to run a program concurrently with input output operations ?

  • IOP
  • DMA
  • Interrupt driven I/O
  • DCA

2. The unit which decodes and translates each instruction and generates the necessary enable signals for ALU and other units is called

  • ALU
  • Control Unit
  • CPU
  • Logical Unit

3. An instruction code must specify the address of the ?

  • Operand
  • Opecode
  • Both of above
  • None of above

4. A number system that uses only two digits, 0 and 1 is known as ?

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

5. Which is used for this and known as high speed buffer exist with almost each process ?

  • Primary
  • Secondary
  • Cache
  • RAM
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