Operating Systems MCQs Set-7

1. The ______ register is read by the host to get input.
  • flow in
  • flow out
  • data in
  • data out
2. The ______ register is written by the host to send output.
  • status
  • control
  • data in
  • data out
3. The hardware mechanism that allows a device to notify the CPU is called _______.
  • polling
  • interrupt
  • driver
  • controlling