50. EA stands for ?
51. The operating mode of I/O devices is __________ for different devices ?
52. ___________ processor has to check continuously till device becomes ready for transferring the data ?
53. Instruction that are used for reading from memory by an IOP called ?
54. Which memory is assembled between main memory and CPU ?
55. A number system that uses only two digits, 0 and 1 is known as ?
A.Octal number system
56. Which system has a base or radix of 10 ?
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