Computer Fundamentals MCQ Quiz - Objective Question with Answer for Computer Fundamentals - Download Free PDF

The correct answer is Universal Serial Bus.

Key Points

• Universal Serial Bus (USB) is an industry-standard that establishes specifications for cables and connectors and protocols for connection, communication, and power supply (interfacing) between computers, peripherals, and other computers.
  • A broad variety of USB hardware exists, including eleven different connectors, of which USB-C is the most recent.
  • Released in 1996, the USB standard is maintained by the USB Implementers Forum (USB-IF).
  • There have been four generations of USB specifications: USB 1.x, USB 2.0, USB 3.x, and USB4.

Additional Information

• Some important abbreviations used in Computer:
  • BIOS - Basic Input Output System
  • CAD - Computer-Aided Design
  • EDVAC - Electronic Discrete Variable Automatic Computer.
  • EPROM - Erasable Programmable Read-Only Memory
  • FORTRAN - Formula Translation
  • GPRS - General Packet Radio Service

The correct answer is Local, Wide and Metropolitan.

Key Points

• The first alphabets L, W, and M in LAN, WAN, and MAN respectively stand for:
  • LAN: Local Area Network
  • WAN: Wide Area Network
  • MAN: Metropolitan Area Network
• These terms are used to describe different types of computer networks based on their geographical scope.
  • LAN is a network that is typically limited to a small geographic area, such as a home, office building, or campus.
  • WAN covers a larger geographical area, such as a city, region, or even the entire globe.
  • MAN falls in between, covering a larger area than a LAN but not as large as a WAN, usually covering a city or metropolitan area.

Both options I and II are types of real-time operating systems.

• A real-time operating system (RTOS) is a type of operating system that processes data and responds to events in a specific time frame. In general, RTOSs are classified into two categories based on their response time: hard real-time systems and soft real-time systems.
• I. Hard real-time systems have strict timing constraints that must be met for the system to operate correctly. In hard real-time systems, a missed deadline can cause a catastrophic failure. Examples of hard real-time systems include systems used in avionics, automotive control systems, and industrial control systems.
• II. Soft real-time systems have looser timing constraints, and occasional missed deadlines are tolerable. In soft real-time systems, the system can continue to operate, if a deadline is missed. Examples of soft real-time systems include multimedia systems, gaming systems, and some types of data acquisition systems.

The correct answer is Visual Display Unit.

Key Points

• The VDU stands for Visual Display Unit. It is recognised as the machine or the hardware part of the system, used as a display unit where the user can see the results.
• Flat panel displays, computer monitors, and projectors are good examples of VDU.
• After entering the input through the input devices like the keyboard, mouse and so on, the user can see the result on the visual display unit. 
• By default the computer monitor is also referred to as a Visual Display Unit or VDU  in the computing system.

Answer: Option 2

The correct answer is Move the cursor at the beginning of the document.

Key Points In MS-Word, by pressing ctrl and home key together from keyboard, we can reach to the beginning of the document. This shortcut key can be used to edit a word file.

Additional Information

Move the cursor at the end of the document:

• To move the cursor at the end of the document, "ctrl+end" key should be pressed. 
• End key pretends the end of an document.

Move the cursor at the beginning of current line:

• To move the cursor at the beginning of current line, "ctrl+right key" should be pressed together.
• It can be used to jump to the beginning of a line from any position.

Move the cursor at the end of current line:

• To move the cursor at the beginning of current line, "ctrl+left key" should be pressed together.

The correct answer is Nibble.

• A half byte is called a Nibble.

Key Points

• A bit is the smallest unit of storage.
• A bit stores just a 0 or 1.
• Computers are designed to store data and execute instructions in bit multiples called bytes.
• One nibble is equal to 4 bits.

Important Points

• Computer storage and memory are often measured in megabytes (MB) and gigabytes (GB).
  • 1 kilobyte (KB) = 1024 bytes
  • 1 megabyte (MB) = 1024 kilobytes
  • 1 gigabyte (GB) = 1024 megabytes
  • 1 terabyte (TB) = 1024 gigabytes
  • 1 petabyte (PB) = 1024 terabytes

Correct Answer is Second Generation

Concept:

Second Generation (1955-1964) computer made was completely based upon transistors. Transistors replaced vacuum tubes in computers. It was invented at Bell Labs by Walter H. Brattain, John Bardeen and William B. Shockley.The TX-0 was the first computer that used transistors, It was released in 1956.These second-generation machines were used for a wide variety of business and scientific jobs and used high-level programming and assembly languages such as FORTRAN (Formula Translator) and COBOL (Common Business Oriented Language).

Additional Information

The second-generation computers had several features: 

• ​Computers made in the second generation used transistors that made them more reliable, smaller in size, faster in speed, more energy-efficient, and cheaper compared to the first generation of computers.
• They contain magnetic storage disks and magnetic core memory.
• They used high-level languages such as FORTRAN and COBOL and allowed communication with the help of a telephone line.
• As compared to the first generation of computers, the data processing time reduced from milliseconds to microseconds.

The correct answer is "Speed".

Key Points

• Gigahertz is a measurement of something happening X times per second.
• 4 gigahertz means that the thing is happening 4 billion times a second.
• When we say that the processor runs at 4ghz we mean that the “main clock” of the processor is ticking 4 billion times per second.
• CPUs are digital circuits. They only do an action when the clock drives the circuit to do the action. Think of that as the RPM of a car. The faster the clock goes, the faster the actions happen.
• For performance, clock speed is important but it's not directly comparable between different CPU architectures. Clock speeds are comparable only in the same family of cpus that share an architecture.

The correct answer is "File Explorer".

Key PointsRenaming a file:

• Click the File Explorer icon.
• Go to the location where stores your file or folder.
• Right-click the name of the file or folder you wish to rename.
• Click Rename (on the menu that opens up).
• Type a new name for the file and press Enter.

Key Points

 Option 1: ​It converts the input data and instructions into a computer-acceptable form.

True, The input unit converts these instructions and data into a computer in an acceptable format.

Option 2: It sends input data and instructions to storage devices for storage and further processing.

True, The input device sends input data and instructions to storage devices for storage and further processing.

Option 3: It processes the input data and sends the result directly to the output device.

False, Input devices can send input data or information to a computer or another device. After that, the computer processes the data and sends it back to the output devices like the screen. 

Option 4: It reads data and instructions from the outside world.

True, Input devices Device that accepts data and instructions from the outside world like, Keyboard Mouse Trackball Joystick Light pen Touch Screen Scanner Bar code.

Hence the correct answer is It processes the input data and sends the result directly to the output device.

The correct answer is Nibble.

• A half byte is called a Nibble.

Key Points

• One byte is equal to 8 bits.
• One kilobit is equal to 1000 bits.
• One kilobyte is equal to 8000 bits.
• One kibibit is equal to 1024 bits.
• One kibibyte is equal to 8192 bits.
• One Megabit is equal to 1000000 bits.
• One Megabyte is equal to 8000000 bits. 

The correct answer is I - 3, II - 1, III - 2.

Key Points

• Executing programs:
  • A computer processor executes an instruction, meaning that it performs the operations called for by that instruction.
  • An executable is a file that contains a program - that is, a particular kind of file that is capable of being executed or run as a program in the computer.
• Allocating resources:
  • Resource allocation is the process of assigning and managing assets in a manner that supports an organization's strategic planning goals. 
• Maintain Authorization Information:
  • Authorization is a security mechanism to determine access levels or user/client privileges related to system resources including files, services, computer programs, data and application features.

Explanation:

The startup process of computer system is termed as "Booting". In this, the computer checks whether all the devices are connected properly or not. This is done by a small program in ROM.

Explanation:

• The latest desktop version of MS Office is Office 2019.
  • It was released in 2018.
  • Succeeding Office 2016.
  • General availability: Windows 10 and for macOS.
  • Mainstream support for MS Office 2019 was extended to 2025.
• Important Office versions after 2000:
  • Office XP.
  • Office 2003.
  • Office 2007.
  • Office 2010.
  • Office 2013.
  • Office 2016.
  • Office 2019.

So, the incorrect version of MS office is OFFICE 1986.

The correct answer is Nibble.

• A half byte is called a Nibble.

Key Points

• A bit is the smallest unit of storage.
• A bit stores just a 0 or 1.
• Computers are designed to store data and execute instructions in bit multiples called bytes.
• One nibble is equal to 4 bits.

Important Points

• Computer storage and memory are often measured in megabytes (MB) and gigabytes (GB).
  • 1 kilobyte (KB) = 1024 bytes
  • 1 megabyte (MB) = 1024 kilobytes
  • 1 gigabyte (GB) = 1024 megabytes
  • 1 terabyte (TB) = 1024 gigabytes
  • 1 petabyte (PB) = 1024 terabytes