ECAT Pre Computer Science MCQ Test For Computer Chapter 3 With Answer

Top Scorers Of ECAT Computer Science Chapter 3 The Peripheral Devices MCQ`s Test

Sr.#	Question	Answer
1	The ability to return a changed disk record to its original location is called.	A. magneto-optical B. rotational delay C. multimedia D. updating in place
2	To send data, instruction and information you need a	A. Sending device B. Receiving device C. Channel device D. Communication signal
3	The encoding scheme of data represent as	A. EBCDIC code B. ASCII code C. Unicode D. All of the above
4	Which input device is often attached to laptop computers.	A. trackball B. inscriber C. graphics display D. wand reader
5	The mechanism for reading or writing data in a disk is called a(n).	A. track B. rotational delay C. seek time D. access arm
6	The most commonly used output devices in a computer system are	A. printers and monitors B. disk drives and printers C. disk drive and tape drives D. tape drive and keyboards
7	Frequency is measured in	A. Channels B. Hertz C. Bandwidth D. Baud
8	A device that inputs data by scanning letters and numbers is a.	A. keyboard B. wand reader C. mouse D. diskette
9	Microwave and Communication Satellite are example of	A. Guided B. Un-guided C. Simplex D. Router
10	CD-ROM has the same format as a(n).	A. backup tape B. DAT C. diskette D. audio compact disk