Question Detail What is meaning of DMAC ? Dual memory access controllerDirect memory access controllerDirect memory access computerDirect memory accumulator controller Answer: Option B Ad Similar Questions : 1. Which technique is used that identifies the highest priority resource by means of software ? Daisy chainingPollingPriorityChaining Answer: Option B 2. Which system was used extensively by early mini computers ? Binary numberDecimal numberHexadecimal numberOctal number Answer: Option DExplanation:Note : Please note that question is asked about early mini computers. 3. A keyboard has which type of asynchronous transfer mode ? SerialParralelOptimalJoint Answer: Option AExplanation:In serial transfer each bit is sent one after the another in a sequence of event and requires just one line. 4. User programs interact with I/O devices through ? Operating SystemHardwareBusesProcessor Answer: Option A 5. What is meaning of IOP ? Input output processorInput output productInput output producerInput output processing Answer: Option A Read more from - Computer System Architecture Questions Answers