Question Detail __ read the data by reflecting pulses of laser beams on the surface ? Magnetic diskOptical diskFloppy diskROM Answer: Option B Ad Similar Questions : 1. In which of the following status flags required for data transfer are present ? Interface CircuitParallel LineDevice CircuitNone of Above Answer: Option A 2. What is full form of LSD ? Less significant dataLess significant digitLeast significant dataLeast significant digit Answer: Option D 3. What is meaning of PCB ? Process control blockPreempitive control blockProcess close blockProcess carrying block Answer: Option A 4. If CPU and I/O interface share a common bus than transfer of data between two units is known as ? AsynchronousClock dependentSynchronousDecoder independent Answer: Option C 5. ____ processor has to check continuously till device becomes ready for transferring the data ? DMAInterrupt-initiated I/OIOPDCP Answer: Option B Read more from - Computer System Architecture Questions Answers