Question Detail What is meaning of PCB ? Process control blockPreempitive control blockProcess close blockProcess carrying block Answer: Option A Ad Similar Questions : 1. Which types of register holds a single vector containing at least two read ports and one write ports ? Data systemVector registerDatabaseMemory Answer: Option B 2. ____ processor has to check continuously till device becomes ready for transferring the data ? DMAInterrupt-initiated I/OIOPDCP Answer: Option B 3. A number system that uses only two digits, 0 and 1 is known as ? Octal number systemHexadecimal systemBinary systemDecimal system Answer: Option C 4. Which technique is used that identifies the highest priority resource by means of software ? Daisy chainingPollingPriorityChaining Answer: Option B 5. What is full form of LSD ? Less significant dataLess significant digitLeast significant dataLeast significant digit Answer: Option D Read more from - Computer System Architecture Questions Answers