Computer Awareness MCQ Set 16
151. Which generation of computers had very large sizes?
A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation
Answer – A. First Generation
Explanation-First Generation computers were developed in the 1940s and 1950s. These computers used vacuum tubes and had very large sizes. They were very expensive to build and maintain.
152. A program that has the capability to infect other programs and make copies of itself and spread into other programs is called
[Uttarakhand PCS (Pre) 2012]
A. Worm
B. Virus
C. Trojan
D. None of these
Answer – B. Virus
Explanation-A virus is a type of malware that has the capability to infect other programs and make copies of itself to spread to other programs. This can cause damage to the infected computer and can also spread to other computers.
153. Which of the following is a part of the Central Processing Unit?
A. Printer
B. Keyboard
C. Mouse
D. Arithmetic & Logic unit
Answer – D. Arithmetic & Logic unit
Explanation-The Central Processing Unit (CPU) is the brain of the computer that performs all the processing tasks. It consists of two main parts: the Control Unit (CU) and the Arithmetic & Logic Unit (ALU). The ALU performs all the arithmetic and logic operations of the computer.
154. MIS is designed to provide the information needed for effective decision-making by:
A. Consumers
B. Workers
C. Foremen
D. Managers
Answer – D. Managers
Explanation-MIS (Management Information System) is a computer-based system that is designed to provide the information needed for effective decision-making by managers. MIS provides timely and accurate information that can be used to make informed decisions.
155. Which one of the following is a part of Infotech terminology? [UPPCS (Pre) 2011]
A. Protocol
B. Login
C. Archie
D. All of these
Answer –D. All of these
Explanation-Infotech terminology refers to the technical language used in the field of Information Technology. Protocol, login, and Archie are all examples of terms used in this field.
156. Microprocessors as switching devices are used in which generation of computers?
A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation
Answer – D. Fourth Generation
Explanation-Microprocessors are used as switching devices in Fourth Generation computers. Fourth Generation computers were developed in the 1960s and 1970s and were based on integrated circuits. They were smaller, faster, and more reliable than previous generations of computers.
157. CAD stands for
A. Computer-aided design
B. Computer algorithm for design
C. Computer application in design
D. Computer analog design
Answer – A. Computer-aided design
Explanation-CAD (Computer-aided design) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software is widely used in the field of architecture, engineering, and manufacturing to create 2D and 3D models of products and buildings.
158. Computer virus means [Tamil Nadu PSC (Pre) 2019 UPPCS (Pre) 1993]
A. A new virus
B. Plague virus
C. Destructive program
D. Hardware of computer
Answer – C. Destructive program
Explanation-A computer virus is a type of malicious software that can replicate itself and spread to other computers. It is a destructive program that can cause damage to the infected computer, steal data, or allow unauthorized access to the computer.
159. Which of the following devices can be used to directly image printed text?
A. OCR
B. OMR
C. MICR
D. All of the above
Answer – A. OCR
Explanation-OCR (Optical Character Recognition) is a technology that can be used to directly image printed text. It works by analyzing the shapes and patterns of the characters in the image and converting them into machine-readable text.
160. Junk e-mail is also called
A. Spam
B. Spoof
C. Sniffer script
D. Spool
Answer – A. Spam
Explanation-Junk e-mail is also called spam. It refers to unsolicited messages that are sent in bulk to a large number of recipients. Spam can be used for advertising, phishing, or spreading malware.
