400 Computer Awareness MCQ Set-5
Q101. Which of the following devices comprise the output unit?
A. Keyboard and Mouse
B. Monitor and Printer
C. Scanner and Speakers
D. Hard disk and CD-ROM
Answer – B. Monitor and Printer
Explanation-
Q102. Which of the following lies within the CPU?
A. Primary Memory
B. Secondary Memory
C. Cache Memory
D. Virtual Memory
Answer – C. Cache Memory
Explanation-
Q103. Which of the following comprises the software components of a computer?
A. Programs
B. Hardware
C. Operating System
D. Both A. and C.
Answer – A. Programs
Explanation-
Q104. In a book by which author was the word computer first mentioned?
A. Richard Braithwaite
B. Charles Babbage
C. Alan Turing
D. Ada Lovelace
Answer – A. Richard Braithwait
Explanation-
Q105. Which of the following is seen as the earliest mechanical analog computer?
A. Tally Stick
B. Astrolabe
C. Abacus
D. Slide Rule
Answer – B. Astrolabe
Explanation-
Q106. Which of the following devices incorporated a mechanical calendar computer?
A. Tally Stick
B. Astrolabe
C. Abacus
D. Slide Rule
Answer – B. Astrolabe
Explanation-
Q107. Who gave the first successful demonstration of the use of a simplified analytical engine in computing tables in 1888?
A. Henry Babbage
B. Charles Babbage
C. Alan Turing
D. Ada Lovelace
Answer – A. Henry Babbage
Explanation-
Q108. Which of the following is the first example of an electromechanical relay computer?
A. ENIAC
B. Colossus
C. Z2
D. Z3
Answer – C. Z2
Explanation-
Q109. Which of the following was considered as the world’s first fully automatic digital computer?
A. ENIAC
B. Colossus
C. Z2
D. Z3
Answer –D. Z3
Explanation-
Q110. Which was the world’s first electronic digital programmable computer?
A. ENIAC
B. Colossus
C. Z2
D. Mark 1
Answer – A. ENIAC
Explanation-
Q111. Who proposed the principle of the modern computer in his 1936 paper?
A. Charles Babbage
B. Alan Turing
C. Ada Lovelace
D. John von Neumann
Answer – B. Alan Turing
Explanation-
Q112. In a laser printer, which type of laser is used?
A. Gas laser
B. Solid-state laser
C. Semiconductor laser
D. Liquid laser
Answer – C. Semiconductor laser
Explanation-
Q113. In Microsoft Word, _ provides information about the current document.
A. Toolbar
B. Status bar
C. Menu bar
D. Ribbon
Answer – B. Status bar
Explanation-
Q114. Virus stands for:
A. Vital Information Resource Under Siege
B. Viral Infection Rendering User Systematic
C. Very Important System Under Surveillance
D. Virtual Intrusion Resistant Unified System
Answer – A. Vital Information Resource Under Siege
Explanation-
Q115. What is the address given to a computer connected to a network called?
A. IP address
B. MAC address
C. URL address
D. DNS address
Answer – A. IP address
Explanation-
Q116. A method of bypassing normal authentication procedures to a computer system is known as:
A. Backdoor
B. Firewall
C. Encryption
D. Spoofing
Answer – A. Backdoor
Explanation-
Q117. Which is a volatile memory?
A. RAM
B. ROM
C. Hard Disk
D. Flash Drive
Answer – A. RAM
Explanation-
Q118. Which programming language is developed by James A. Gosling?
A. C++
B. Java
C. Python
D. Ruby
Answer – B. Java
Explanation-
Q119. The commonly used abbreviation ISP in computer science stands for:
A. Internet Service Provider B. Internet Security Protocol
C. Internet Storage Platform
D. Internet System Performance
Answer – A. Internet Service Provider
Explanation-
Q120. Which is used to enter data and instructions into a computer?
A. Input Device
B. Output Device
C. Storage Device
D. Processing Device
Answer – A. Input Device
Explanation-
Q121. ________ changes each time it is installed to avoid detection by antivirus software.
A. Polymorphic Virus
B. Trojan Horse
C. Worm
D. Spyware
Answer – A. Polymorphic Virus
Explanation-
Q122. Systems running more than one process concurrently are called:
A. Multiprocessing
B. Multithreading
C. Multiprogramming
D. Multitasking
Answer – C. Multiprogramming
Explanation-
Q123. Which has the largest storage?
A. Kilobyte
B. Megabyte
C. Gigabyte
D. Terabyte
Answer – D. Terabyte
Explanation-
Q124. Which is an application protocol?
A. TCP
B. IP
C. HTTP
D. DNS
Answer –C. HTTP
Explanation-
Q125. In IT, associated memory is called:
A. Cache Memory
B. Random Access Memory
C. Flash Memory
D. Content Addressable Memory
Answer – D. Content Addressable Memory
Explanation-
