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	Which input device is often attached to laptop computers:	A. trackball B. inscriber C. wand reader D. graphic display
2	Which of the following cable is comprised of two separate insulated copper wires that are twisted?	A. Fiber optics B. Twisted pair wire C. coax D. Submarine
3	A device that inputs data by scanning letters and numbers is a.	A. keyboard B. wand reader C. mouse D. diskette
4	The speed with which a disk can find data being bought is called.	A. access time B. data transfer time C. direct time D. cylinder time
5	The mechanism for reading or writing data in a disk is called	A. access arm B. rorational delay C. seek time D. track
6	Personal computer user may wish to increase their hard disk storage capacity with	A. higher density B. DAT C. read only media D. removable hard disk cartridge.
7	Computer output produced as small film images is called	A. LCD B. COM C. OMR D. OCR
8	The ability to return a change disk record to its original location is called	A. magneto optical B. rotational delay C. updating in place D. multimedia
9	The most commonly used character code/s transmission is/are	A. EBCDIC B. ASCII C. both EBCDIC and ASCII D. nethier EBCDIC and ASCII
10	Shift of a register by one bit to left in binary code is equivalent to.	A. addition of 2 B. subtraction of 2 C. division by 2 D. multiplication by 2