Question Detail What is meaning of DMAC ? Dual memory access controllerDirect memory access controllerDirect memory access computerDirect memory accumulator controller Answer: Option B Similar Questions : 1. __ read the data by reflecting pulses of laser beams on the surface ? Magnetic diskOptical diskFloppy diskROM Answer: Option B 2. Why we need to have secondary storage ? Store large volume of data that exceed the capacity of main memoryPerform arithmatic and logical operationsTo give power to the system tooTo help processor in processing Answer: Option A 3. Which interrupt establishes a priority over the various sources to determine which request should be entertained first ? PollingDaisy chainingPriority interruptAll of above Answer: Option C 4. What Mnemonic represents ? StringsPhysical AddressOperation AddressOperation codes Answer: Option D 5. The unit which decodes and translates each instruction and generates the necessary enable signals for ALU and other units is called ALUControl UnitCPULogical Unit Answer: Option B Read more from - Computer System Architecture Questions Answers