Q151. Which of the following is not a characteristic of computers?
A) Speed
B) Accuracy
C) Intelligence
D) Storage
Answer: C

Q152. Which computer is mainly used for business and scientific calculations?
A) Supercomputer
B) Mainframe
C) Microcomputer
D) Minicomputer
Answer: B

Q153. Which is the first step in instruction cycle?
A) Decode
B) Fetch
C) Execute
D) Store
Answer: B

Q154. Which part of CPU interprets instructions?
A) ALU
B) Control Unit
C) Memory Unit
D) Input Unit
Answer: B

Q155. Which memory is used to temporarily store instructions and data currently in use?
A) ROM
B) RAM
C) Hard Disk
D) Flash Memory
Answer: B

Q156. Which device reads data encoded in magnetic ink on cheques?
A) OCR
B) MICR
C) OMR
D) Barcode Reader
Answer: B

Q157. The speed of a computer’s CPU is measured in?
A) Bytes
B) Bits
C) Hertz
D) Nibbles
Answer: C

Q158. Which device is used to connect multiple computers in a LAN?
A) Switch
B) Hub
C) Router
D) Both A and B
Answer: D

Q159. The main function of ALU is to perform?
A) Arithmetic operations only
B) Logical operations only
C) Both arithmetic and logical operations
D) Input operations
Answer: C

Q160. Which memory type is called read-only memory?
A) RAM
B) ROM
C) Cache
D) Register
Answer: B

Q161. The first computer virus in history was called?
A) Melissa
B) Creeper
C) ILOVEYOU
D) Brain
Answer: B

Q162. Which generation of computers introduced microprocessors?
A) Third
B) Fourth
C) Fifth
D) Sixth
Answer: B

Q163. Which storage device uses laser technology to read/write data?
A) Hard Disk
B) CD-ROM
C) Flash Drive
D) Magnetic Tape
Answer: B

Q164. Which type of computer memory is non-volatile and can be electrically erased?
A) RAM
B) EPROM
C) Cache
D) Register
Answer: B

Q165. Which device converts analog signals into digital form?
A) DAC
B) ADC
C) Modem
D) Scanner
Answer: B

Q166. Which generation of computers used artificial intelligence?
A) Third
B) Fourth
C) Fifth
D) Sixth
Answer: C

Q167. Which device is used to input responses from multiple-choice tests?
A) OCR
B) OMR
C) MICR
D) Barcode Reader
Answer: B

Q168. Which memory is used in cache?
A) SRAM
B) DRAM
C) ROM
D) Flash Memory
Answer: A

Q169. Which generation of computers used vacuum tubes?
A) First
B) Second
C) Third
D) Fourth
Answer: A

Q170. Which logic gate gives output 1 when inputs are different?
A) AND
B) OR
C) XOR
D) NAND
Answer: C

Q171. Which of the following is a non-impact printer?
A) Dot Matrix
B) Line Printer
C) Inkjet
D) Daisy Wheel
Answer: C

Q172. Which device is used to store large volumes of data permanently?
A) RAM
B) Hard Disk
C) Cache
D) Register
Answer: B

Q173. Which memory is directly accessible by CPU?
A) Primary memory
B) Secondary memory
C) Tertiary storage
D) Network storage
Answer: A

Q174. The mainboard of a computer is called?
A) CPU
B) Motherboard
C) ALU
D) RAM
Answer: B

Q175. Which language is closest to machine language?
A) High-level language
B) Assembly language
C) Low-level language
D) English
Answer: C

Q176. Which device is used for scanning fingerprints?
A) OCR
B) MICR
C) Biometric Scanner
D) Barcode Reader
Answer: C

Q177. The input unit of a computer includes?
A) Keyboard, Mouse
B) Monitor, Printer
C) CPU, ALU
D) Cache, ROM
Answer: A

Q178. Which device is both input and output?
A) Keyboard
B) Monitor
C) Touch Screen
D) Printer
Answer: C

Q179. Which device is used to display graphics on a large screen?
A) Monitor
B) Projector
C) Printer
D) Plotter
Answer: B

Q180. Which of these is an optical storage device?
A) Hard Disk
B) CD-ROM
C) Flash Drive
D) Magnetic Tape
Answer: B

Q181. The first computer programmer was?
A) Charles Babbage
B) Ada Lovelace
C) Alan Turing
D) John von Neumann
Answer: B

Q182. Which of the following is a high-level programming language?
A) Assembly
B) C++
C) Machine Code
D) Binary
Answer: B

Q183. Which memory is temporary and used for processing?
A) ROM
B) RAM
C) Hard Disk
D) Flash Memory
Answer: B

Q184. Which logic gate outputs the complement of input?
A) AND
B) OR
C) NOT
D) XOR
Answer: C

Q185. Which input device is used for drawing pictures digitally?
A) Keyboard
B) Mouse
C) Graphics Tablet
D) Joystick
Answer: C

Q186. Supercomputers are mainly used for?
A) Typing
B) Scientific calculations
C) Browsing
D) Gaming
Answer: B

Q187. Which of these is an example of secondary storage?
A) Cache
B) Hard Disk
C) RAM
D) Register
Answer: B

Q188. Which device is used to input voice data?
A) Microphone
B) Scanner
C) Keyboard
D) Mouse
Answer: A

Q189. Which type of memory is built-in to CPU for faster access?
A) Cache
B) RAM
C) ROM
D) Flash
Answer: A

Q190. Which generation used transistors?
A) First
B) Second
C) Third
D) Fourth
Answer: B

Q191. Which device reads data in form of dots and lines from forms?
A) MICR
B) OCR
C) OMR
D) Barcode Reader
Answer: C

Q192. Which storage device is removable and portable?
A) Hard Disk
B) CD/DVD
C) Cache
D) Register
Answer: B

Q193. The main function of control unit is to?
A) Perform arithmetic operations
B) Control all computer operations
C) Store data permanently
D) Manage input only
Answer: B

Q194. Which of these is used to connect computers over long distances?
A) LAN
B) WAN
C) PAN
D) MAN
Answer: B

Q195. Which type of memory is also called read-only memory?
A) RAM
B) ROM
C) Cache
D) Flash
Answer: B

Q196. Which logic gate outputs 1 only if at least one input is 1?
A) AND
B) OR
C) NOT
D) NAND
Answer: B

Q197. Which is the first electronic digital computer?
A) ENIAC
B) UNIVAC
C) IBM 1401
D) EDVAC
Answer: A

Q198. Which memory is used to temporarily hold instructions and data?
A) ROM
B) RAM
C) Hard Disk
D) Flash
Answer: B

Q199. Which device helps to convert digital data into analog signals?
A) ADC
B) DAC
C) Modem
D) Scanner
Answer: B

Q200. The speed of modern processors is measured in?
A) Bytes
B) Hertz
C) Bits
D) Words
Answer: B