08 Introduction to the Computer (Part 08)
27 Feb 2015
141.Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.
(1) Arithmetic and Logic Unit
(2) Control Unit
(3) Both of above
(4) None of above
(5) EPS
142.Analog computer works on the supply of
(1) Continuous electrical pulses
(2) Electrical pulses but not continuous
(3) Magnetic strength
(4) None of the above
(5) Electro waves
143.Digital devices are
(1) Digital Clock
(2) Automobile speed meter
(3) Clock with a dial and two hands
(4) All of them
(5) None of them
144.The computer that process both analog and digital is called
(1) Analog computer
(2) Digital computer
(3) Hybrid computer
(4) Mainframe computer
(5) None of them
145.Which statement is valid about magnetic tape?
(1) It is a plastic ribbon
(2) It is coated on both sides with iron oxide
(3) It can be erased and reused
(4) All the above
(5) None of them
146.The data recording format in most of the modern magnetic tape is
(1) 7-bit ASCII
(2) 7-bit EBCDIC
(3) 8-bit ASCII
(4) 8-bit EBCDIC
(5) None of them
147.Which of the following is associated with error detector?
(1) Odd parity bit
(2) Even parity bit
(3) Both the above
(4) Circular parity bit
(5) None of them
148.Tape speed is measured in
(1) Feet per second
(2) Inch per second
(3) Meter per second
(4) Centimeter per second
(5) None of them
149.Magnetic disks are the most popular medium for
(1) Direct access
(2) Sequential access
(3) Both of above
(4) Intermitent access
(5) None of them
150.Storage capacity of magnetic disk depends on
(1) tracks per inch of surface
(2) bits per inch of tracks
(3) disk pack in disk surface
(4) All the above
(5) None of them
151.Reading data is performed in magnetic disk by
(1) Read/write leads
(2) Sectors
(2) Track
(4) Lower surface
(5) None of them
152.Access time is
(1) seek time + latency time
(2) seek time
(3) seek time - latency time
(4) latency time
(5) None of them
153.Seek time is
(1) time to position the head over proper track
(2) time to position the head over proper sector
(3) time to position the head over proper cylinder
(4) All the above
(5) None of them
154.Latency time is
(1) Time to spin the needed data under head
(2) Time to spin the needed data under track
(3) Time to spin data under sector
(4) All the above
(5) None of them
155.Floppy disks are available in
(1) Single side single density
(2) Single side double density
(3) Both of above
(4) No Side double density
(5) None of them
156.Floppy disks typically in diameter
(1) 3"
(2) 5.25"
(3) 8"
(4) All the above
(5) None of them
157.Hard disk is coated in both side above
(1) Magnetic metallic oxide
(2) Optical metallic oxide
(3) Carbon layer
(4) All the above
(5) None of them
158.Binary circuit elements have
(1) One stable state
(2) Two stable state
(3) Three stable state
(4) All the above
(5) None of them
159.Which statement is valid?
(1) 1KB = 1024 bytes
(2) 1MB= 2048 bytes
(3) 1 MB = 1000 kilobytes
(4) 1 KB - 1000 bytes
(5) None of them
160.Which statement is valid about computer program?
(1) It is understood by a computer
(2) It is understood by programmer
(4) Both of above
(4) It is understood by the user
(5) None of them
Answers: 141. (1) 142. (1) 143. (1) 144. (3) 145. (1) 146. (4) 147. (3) 148. (2)
149. (3) 150. (4) 151. (1) 152. (1) 153. (1) 154.(1) 155. (3) 156. (4) 157. (1) 158.(2) 159. (1) 160. (4)
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