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

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.

A computer is a machine that stores and processes data. Most computers use a binary system, which uses two variables, 0 and 1, to perform tasks such as data storage, algorithm calculation, and information display. Computers come in a variety of shapes and sizes, ranging from handheld smartphones to supercomputers weighing over 300 tonnes.

Important Points

A computer virus is a piece of malicious computer code that is designed to spread from device to device. These self-copying threats, a subset of malware, are typically designed to damage a device or steal data. Some computer viruses are designed to cause damage to your computer by corrupting programmes, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making any internet activity impossible. Even less dangerous computer viruses can have a significant impact on your system's performance by consuming computer memory and causing frequent computer crashes. A computer virus is a computer program that copies itself to infect a computer without the permission and knowledge of the user.

The characteristics of a computer virus are-

1. A computer virus requires a host program.
2. A computer virus requires user action to transmit from one system to another.
3. A computer virus attaches bits of its own malicious code to other files or replaces files outright with copies of itself.

Additional Information Computer viruses can be classified into-

Worms - A worm is a type of virus that, unlike traditional viruses, does not usually require the user's action to spread from device to device.

Trojans - As in the myth, a Trojan is a virus that disguises itself as a legitimate-appearing programme in order to spread across networks or devices.

Ransomware -  is a type of malware that encrypts a user's files and demands a ransom in exchange for their return. Ransomware can, but does not always, spread via computer viruses.

Therefore, the correct answer is It is a computer program which copies itself to infect a computer without the permission/ knowledge of the user.

The correct answer is Apply a new theme.

Key Points

 The way to change all of the slides layouts and colors of the google presentation are,

• Manually change the colors and layouts on each slide,
• Apply a transition
• Apply a new theme.
• Modify the master slide.

The correct answer is Pressing the shift key.

Key Points

 You can advance to the next slide by,

• clicking your mouse,
• pressing the spacebar on your keyboard or
• Using the arrow keys.

 Use the arrow keys on your keyboard to move forward or backward through the presentation. You can also hover your mouse over the bottom-left and use the commands there to navigate the presentation.

By Pressing the shift key we can't go advance to the next slide.

The correct answer is To scroll through the spreadsheet While continuing to see the frozen rows.

Key Points

 You can freeze a row in Excel so it's easier to compare data as you scroll through the spreadsheet. You can choose to only freeze the first visible row in your Excel sheet, or freeze multiple rows.

Freezing of rows and columns:

Freezing of the panes helps the user to only see the rows and the columns which have been frozen while scrolling down the worksheet. The cell below the row and to the right of the column has to be selected which has to be kept visible.

Freeze panes are a feature in spreadsheet applications, such as Microsoft Excel, LibreOffice Calc, and Google Sheets. It "freezes" a row or column, so that it is always displayed, even as you navigate the spreadsheet.

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

The correct answer is 8 bits.

Key Points

• UTF-8 is an 8-bit variable-length encoding scheme designed to be compatible with ASCII encoding.
• The encoding scheme distributes a Unicode code value's bit pattern across 1, 2, 3, or even 4 bytes.
  • This encoding is a multi-byte encoding scheme.
• Unicode provides a unique number for every character.
  • It including punctuation marks, mathematical symbols, technical symbols, arrows, and characters making up non-Latin alphabets such as Thai, Chinese, or Arabic script.
• Unicode is an industry standard for the consistent encoding of written text.
  • Unicode defines different character encodings, the most used ones being UTF-8, UTF-16, and UTF-32. UTF-8 is definitely the most popular encoding in the Unicode family, especially on the Web.

Additional Information

• ASCII (American Standard Code for Information Interchange) character set contains 128 characters for English letters, numbers, and some control characters.
  • ASCII encoding maps each character to 1 byte with the leading bit set to 0, and the other 7 bits representing the code point of the character.

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. 

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

The correct answer is Cell Range.

Key Points

 A group of cells is known as a cell range. Rather than a single cell address, you will refer to a cell range using the cell addresses of the first and last cells in the cell range, separated by a colon.

For example, a cell range that included cells A1, A2, A3, A4, and A5 would be written as A1:A5.

Additional Information

• A chart is a tool you can use in Excel to communicate data graphically. Charts allow your audience to see the meaning behind the numbers, and they make showing comparisons and trends much easier.
• Clustering is just a way to group a set of data into smaller sets. The two ways you could group a set of data are quantitatively (using numbers) and qualitatively (using categories).
• A reference that refers to the same cell or range of cells on multiple sheets is called a 3D reference. They are useful when referencing several worksheets that follow the same pattern.