Top 30 Computer fundamental MCQs for OSSSC LSI, Forester, FG 14 March 2024

Computer fundamentals are essential for various government job exams like OSSSC LSI (Livestock Inspector), Forester, FG (Forest Guard). Understanding basic computer concepts not only improves your chances of clearing these exams but also enhances your overall digital literacy. To assist aspirants in their preparation, here are the top 30 multiple-choice questions (MCQs) covering various aspects of computer fundamentals.

Top 30 Computer fundamental MCQs for OSSSC LSI, Forester, FG

These multiple-choice questions cover various aspects of computer fundamentals, ranging from hardware components to networking concepts and programming languages. By practicing these questions, candidates preparing for OSSSC LSI, Forester, FG exams can assess their knowledge and improve their understanding of computer basics, which is crucial for success in these competitive examinations.

What is the smallest unit of data in a computer?
1. Gigabyte
2. Bit
3. Byte
4. Terabyte
  Answer: Bit
  Explanation: Bit is the smallest unit of data in a computer. 8 bits = 1 byte, 1024 bytes = 1 Kilobyte, 1024 Kilobytes = 1 Megabyte, 1024 Megabytes = Gigabyte, and 1024 Gigabytes = 1 Terabyte.
Which of the following is NOT an antivirus software?
1. Avast
2. Linux
3. Norton
4. Kaspersky
  Answer: Linux
  Explanation: Linux is not antivirus software; it is an open-source operating system. The rest are antivirus software for Microsoft Windows, macOS, Android, and iOS.
In the context of digital computers, which of the following pairs of digits is referred to as binary code?
1. 3 and 4
2. 0 and 1
3. 2 and 3
4. 1 and 2
  Answer: 0 and 1
  Explanation: In computers, all data is represented as binary codes, i.e., strings of 0s and 1s.
Which unit of the computer is considered as the brain of the computer?
1. Memory unit
2. Input unit
3. CPU
4. Output unit
  Answer: CPU
  Explanation: Central Processing Unit (CPU) is considered as the brain of the computer because it contains all the circuitry needed to process input, store data, and output results.
What is the full form of PROM?
1. Program read-only memory
2. Primary read-only memory
3. Programmable read-only memory
4. Program read-output memory
  Answer: Programmable read-only memory
  Explanation: PROM, or Programmable read-only memory, is a computer memory chip that can be programmed once after it is created. Once programmed, the information written is permanent and cannot be erased or deleted.
In the context of computing, what is the full form of URL?
1. Undistributed Resource Locator
2. Unified Resource Locator
3. Uniform Resource Locator
4. Uniform Region Locator
  Answer: Uniform Resource Locator
  Explanation: A Uniform Resource Locator (URL) is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.
Which of the following is an input device used to enter motion data in computers or other electronic devices?
1. Monitor
2. Trackball
3. Plotter
4. Joystick
  Answer: Trackball
  Explanation: A trackball is a pointing input device where the user rolls a ball with the thumb, fingers, or palm of the hand to move a cursor.
In the context of computing, a byte is equal to _____ bits?
1. 4
2. 16
3. 24
4. 8
  Answer: 8
  Explanation: In computing, a byte is equal to 8 bits.
_____ is a small, portable flash memory card that plugs into a computer’s USB port and functions as a portable hard drive?
1. Flash drive
2. CD-RW
3. DVD-ROM
4. CD-ROM
  Answer: Flash drive
  Explanation: A USB flash drive is a plug-and-play portable storage device that uses flash memory. It can be used in place of a compact disc.
Which of the following devices is NOT used to enter data into a computer?
1. Mouse
2. Keyboard
3. Scanner
4. Monitor
  Answer: Monitor
  Explanation: Monitor is an output device.
Which of the following is an input device of a computer?
1. Speaker
2. Printer
3. Scanner
4. Monitor
  Answer: Scanner
  Explanation: Scanner is classified as an input device.
Transistors belong to which generation of computers?
1. First
2. Second
3. Third
4. Fourth
  Answer: Second
  Explanation: Generations:
  First: Vacuum Tubes
  Second: Transistors
  Third: Integrated Circuits
  Fourth: Microprocessors
What type of device is a Trackball?
1. Input device
2. Touchpad
3. Output device
4. Barcode reader
  Answer: Input device
  Explanation: A trackball is a type of pointing input device.
Which type of computers is used to control air traffic and radar in national defense?
1. Personal computers
2. Analog computers
3. Hybrid computers
4. Digital computers
  Answer: Hybrid computers
  Explanation: Hybrid computers combine features of analog and digital computers, suitable for controlling air traffic and radar in national defense.
How many function keys are present on a standard PC keyboard?
1. 10
2. 9
3. 12
4. 15
  Answer: 12
  Explanation: A standard PC keyboard typically has 12 function keys.
A computer on the Internet that uses the HTTP protocol is known as:
1. LAN
2. Web Server
3. WAP
4. WLAN
  Answer: Web Server
  Explanation: A computer using the HTTP protocol on the Internet is termed a Web Server.
Third-generation computers used:
1. Vacuum tubes
2. Integrated circuits
3. Transistors
4. VLSI technique
  Answer: Integrated circuits
  Explanation: Third-generation computers were based on integrated circuits.
What is the shortcut key for central alignment of a line or text in MS Office software?
1. Ctrl+E
2. Ctrl+C
3. Ctrl+G
4. Ctrl+A
  Answer: Ctrl+E
  Explanation: Ctrl+E aligns text centrally in MS Office software.
___ is the central server in a computer network that lets the concerned user utilize the storage capacity of the server?
1. Application Server
2. File Server
3. Print Server
4. Web Server
  Answer: File Server
  Explanation: A file server allows users to access the storage capacity of the server in a network.
Which of the following is NOT a portable device?
1. iPods
2. Laptops
3. Desktop computers
4. Thumb drives
  Answer: Desktop computers
  Explanation: Desktop computers are not considered portable devices.
Which of the following is the fastest to read from and write to among the various storage options in a computer?
1. CD-ROM
2. Floppy disk
3. RAM
4. Hard disk
  Answer: RAM
  Explanation:
  RAM (Random Access Memory) is a type of computer memory that allows data to be read and changed in any order. It is commonly used to store working data and machine code. A random-access memory device enables data items to be read or written in nearly the same amount of time, regardless of their physical location within the memory.
What is a diagrammatic representation of program logic?
1. Process
2. Flowchart
3. Data
4. Legend
  Answer: Flowchart
  Explanation:
  A flowchart is a graphical representation of steps, showing them in sequential order. It is widely used to present the flow of algorithms, workflows, or processes. Flowcharts depict steps as boxes of various shapes and connect them with arrows to indicate their order.
In the field of computing, what does ENIAC stand for?
1. Electronic Numerical Integrator and Computer
2. Electronic Numerical Integrated Advanced Computer
3. Electronic Numerals Integration and Computing
4. Electronic Numbers Integration and Computer
  Answer: Electronic Numerical Integrator and Computer
  Explanation:
  ENIAC stands for Electronic Numerical Integrator and Computer. It was the first programmable, electronic, general-purpose digital computer. ENIAC was Turing-complete, capable of solving a wide range of numerical problems through reprogramming.
How is the speed of the Central Processing Unit (CPU) measured?
1. Gigabyte (GB)
2. Hertz (Hz)
3. Terabyte (TB)
4. Kilobyte (KB)
  Answer: Hertz (Hz)
  Explanation:
  The speed of the CPU is measured in Hertz (Hz), representing a CPU cycle.
Which input device utilizes a light-sensitive detector to select objects on a display screen?
1. Light pen
2. Bar code reader
3. Optical mark recognition (OMR)
4. Magnetic ink character recognition (MICR)
  Answer: Light pen
  Explanation:
  A light pen is a computer input device shaped like a wand and equipped with a light-sensitive tip. It is used in conjunction with a computer’s cathode-ray tube display to point to displayed objects or draw on the screen with high positional accuracy.
What is another term for ‘Nibble’ in computer terminology?
1. Bit
2. Half bit
3. Half byte
4. Byte
  Answer: Half byte
  Explanation:
  ‘Nibble’ is also known as Half byte.
Which company manufactured the first microprocessor 4004?
1. ENOcean Private Company
2. NVIDIA Corporation
3. PLX Devices
4. INTEL Corporation
  Answer: INTEL Corporation
  Explanation:
  INTEL Corporation produced the first microprocessor, the 4004.
In the field of information and communication technology, what is the full form of FDD?
1. Folder Disk Drive
2. Floppy Disk Drive
3. Folder Data Drive
4. Floppy Data Drive
  Answer: Floppy Disk Drive
  Explanation:
  FDD stands for Floppy Disk Drive in the field of Information and Communication Technology. It refers to a type of disk storage containing a thin and flexible magnetic storage medium sealed in a rectangular plastic enclosure.
What is ‘Roadeo’?
1. A robot that cleans city roads
2. A robot that fills potholes
3. A robot that drives taxis
4. A robot that helps maintain traffic
  Answer: A robot that helps maintain traffic
  Explanation:
  Roadeo refers to a competitive driving event for motor vehicle drivers, where they navigate through various obstacles in the shortest time possible, often including other components like a written test.
Who designed India’s first analog computer?
1. Samarendra Kumar Mitra
2. Deb Kumar Bose
3. Subodh Chandra Das Gupta
4. Bimal Kumar Bhattacharyya
  Answer: Samarendra Kumar Mitra
  Explanation:
  Samarendra Kumar Mitra, an Indian scientist and mathematician, designed India’s first analog computer in 1954 at the Indian Statistical Institute in Calcutta.