141. A ______ is a program in execution.
(A) application
(B) semaphore
(C) deadlock
(D) process
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142. Which of the following computer operating systems is free and open-source?
(A) MAC
(B) Linux
(C) UNIX
(D) Windows
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143. Which of the following is an example of system software ?
(A) Word Processor
(B) Paintbrush
(C) Operating System
(D) Music Player
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144. Which of the following is not a valid version of Microsoft Windows Operating System ?
(A) Windows-7
(B) Windows-9
(C) Windows-8
(D) Windows-10
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145. Which is the virtual assistant for Windows 10 operating system?
(A) Alexa
(B) Bixby
(C) Cortana
(D) Siri
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146. Which is the shortcut key in Windows to show the “RUN” box where you can type commands ?
(A) Ctrl + Shift + R
(B) Alt+R
(C) Ctrl + R
(D) Windows + R
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147. Microsoft _____ is an Antivirus program built into Microsoft Windows 10 operating system.
(A) Kaspersky
(B) Avast
(C) Defender
(D) McAfee
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148. Which is a component of Microsoft Windows that provides the ability to view and change system settings?
(A) Control Panel
(B) Command Prompt
(C) Notepad
(D) MS-Office
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149. Which is a way to boot a Window-based computer in diagnostic mode when there is a system-critical problem that interferes with the normal operation of Windows ?
(A) Cold boot
(B) Warm boot
(C) Safe mode
(D) Command mode
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150. The main job of a CPU is to
(A) process data and information
(B) carry out program instructions
(C) store data / information for further use
(D) Both (A) and (B)
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151. The instruction code used in machine or assembly language which specifies the basic operations of the CPU is
(A) Op. code
(B) Machine code
(C) Instruction code
(D) All of these
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152. PCs are considered fourth-generation and contain
(A) information in
(B) data
(C) vacuum tubes
(D) microprocessors
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153. Which option is used for increasing and decreasing the speed of the cursor of mouse ?
(A) Setting
(B) Control
(C) Control panel
(D) Drive
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154. Trackball is an example of a/an
(A) Software device
(B) Output device
(C) Pointing device
(D) Programming device
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155. Which printers have tiny hammer-like keys that strike the paper through an inked ribbon?
(A) Inkjet
(B) Non-impact
(C) Laser
(D) None of these
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156. Storage devices may be
(A) block access type only
(B) sequential access type only
(C) direct access type only
(D) Both (B) and (C)
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157. CD-ROM is a
(A) magnetic memory
(B) semiconductor memory
(C) memory register
(D) None of these
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158. The base or radix of the decimal number system is
(A) 2
(B) 10
(C) 8
(D) 16
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159. The Unicode binary system uses ______ bits per byte.
(A) 16
(B) 32
(C) 64
(D) 128
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160. An error in software or hardware is called a bug. What is the alternative computer jargon for it ?
(A) squid
(B) glitch
(C) slug
(D) leech
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