Q.142 Which of the following is NOT a basic function of a computer system?
Store data
Accept input
Process data
Copy Text
Explanation
The four primary functions of a computer are Input, Processing, Output, and Storage. Copying text is an application-specific task.
Q.143 When a computer is switched on, the booting process performs which specific hardware check?
Correct Test
Power on
Age old system
Power on self test
Explanation
The Power-On Self-Test (POST) is a diagnostic testing sequence that checking the computer’s internal hardware for compatibility and connection before starting the OS.
Q.144 Which of the following memory types does NOT store data permanently?
ROM
RAM
Floppy disk
Hard disk
Explanation
RAM is volatile memory, meaning all data stored in it is lost as soon as the power supply is interrupted.
Q.145 Among the following options, which represents the smallest storage capacity?
Megabyte
Gigabyte
Terabyte
None of these
Explanation
In the hierarchy of data measurement, units like Kilobytes or Bytes are smaller than the Megabytes listed here.
Q.146 Fifth-generation computers are characterized by several advanced technologies, but they do NOT use?
Speech recognition
Artificial Intelligence
Very large scale integration
Vacuum tube
Explanation
Vacuum tubes were the primary electronic component of first-generation computers (1940-1956).
Q.147 In a computer system, where does most of the data processing take place?
Memory
RAM
CPU
Monitor
Explanation
The Central Processing Unit (CPU) is responsible for executing instructions and performing calculations for all computer operations.
Q.148 Which of the following is NOT classified as a storage medium?
Hard disk
Flash drive
DVD
Monitor
Explanation
A monitor is an output device used to display visual information; it cannot store data.
Q.149 What type of malware uses computer networks and hosts to replicate itself independently?
Time bomb
Worm
Melissa virus
Macro virus
Explanation
Unlike a standard virus, a worm is a standalone program that can replicate itself and spread over networks without needing to attach to a host file.
Q.150 What is the most common tool used to restrict unauthorized access to a computer system?
User logins
Computer key
Password
None
Explanation
Passwords are the most widely used security mechanism for authenticating users and protecting digital resources.
Q.151 Who is credited with developing the first electronic digital computer (ABC)?
J.V. Atanasoff
Bill Gates
Winton
None
Explanation
John Vincent Atanasoff, along with Clifford Berry, developed the Atanasoff-Berry Computer (ABC) between 1937 and 1942.
Q.152 Personal Computers (PCs) are considered fourth-generation devices because they contain a?
Information
Data
Microprocessor
Vacuum tube
Explanation
The fourth generation (1971-present) is defined by the development of the microprocessor, which brought computing power to the desktop.
Q.153 Which technology serves as the switching device for fifth-generation computers?
Vacuum tubes
Transistors
VLSI
None
Explanation
Fifth-generation computers utilize Very Large Scale Integration (VLSI) and Ultra Large Scale Integration (ULSI) to achieve high levels of parallelism.
Q.154 Which type of computer is a small general-purpose system designed for a desk, larger than a portable computer?
Hybrid
Digital
Desktop
None
Explanation
A desktop computer is a personal computer designed for regular use at a single location on or near a desk.
Q.155 A trackball is classified as which type of device?
Input device
Digital device
Output device
None
Explanation
A trackball is a pointing input device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes.
Q.156 Which of the following is a medium-sized computer used in multi-user environments?
Micro
Miniframe
Super
Mini
Explanation
Mini computers (or mid-range systems) sit between microcomputers (PCs) and mainframes in terms of power and size.
Q.157 Which type of computer is characterized by its large size and high processing power for big organizations?
Micro
Mainframe
Super
Mini
Explanation
Mainframe computers (often referred to as ‘big iron’) are large, powerful systems used primarily by large organizations for critical applications.
Q.158 Notebooks, laptops, and handheld computers belong to which category?
Digital computer
Portable computer
Super computer
None
Explanation
Portable computers are designed to be easily carried and used in different locations, including laptops and tablets.
Q.159 Devices like the light pen and joystick are examples of?
Output device
Input device
Portable
None
Explanation
These are pointing devices used to provide spatial data and commands to a computer system.
Q.160 A touch screen serves as which type of computer component?
Output device
Input device
Both A & B
None
Explanation
A touch screen is both an input device (sensing touch) and an output device (displaying the visual interface).
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