Answer: (b) program in the execution

Explanation: A process is a program that is executed by the threads. It consists of multiple threads of execution.

Answer: (b) Spell checker

Explanation: The word processing feature that catches most random typographical errors and misspellings is known as spell checker.

Answer: (a) A bit

Explanation: The smallest unit of the information is a bit. All information is stored in the computer as bits.

Answer: (d) 23

Explanation: Binary number is 10111.

= 1×2⁴ + 0x2³ + 1×2² + 1×2¹ + 1×2⁰

= 1×16 + 0x8 + 1×4 + 1×2 + 1×1

= 16 + 0 + 4 + 2 + 1

= 23

Answer: (a) Buffer

Explanation: Buffer is the temporary storage that can be used to compensate for a difference in data rate and data flow between devices. In other words, a buffer is an area of physical memory storage used to store data temporarily.

Answer: (d) 3

Explanation: Three color dots form a color pixel on a screen, and these are the following color dots: red, blue, and green. you can make any color from these 3 colors on the screen.

Answer: (d) 31.0065918

Explanation: B and F are equal to 11 and 15 respectively.

Therefore, equivalent decimal number is,

= (1F.01B)₁₆

= (1×16¹ + 15×16⁰ + 0x16^-1 + 1×16^-2 + 11×16^-3)₁₀

= (16 + 15 + 0 + 0.00390625 + 0.00268554688)₁₀

= (31.0065918)₁₀

Answer: (c) Magnetism

Explanation: The data is stored on the diskette in magnetism form. A diskette is a removable data storage, and it is used with the PC.

Answer: (b) Pixel

Explanation: A pixel is the smallest portion of the screen. The name Pixel is made from the “Picture element” and is also called the PEL. All screen is made by putting millions of pixels together in a matrix form.

Answer: (a) Silicon

Explanation: Silicon is the primary element in computer chips. Silicon is a highly pure element which is now perfect for the massive computer chip industry. It is cost efficent and easy to use.

Answer: (b) Spreadsheet program

Explanation: Spreadsheet programs help you to calculate numbers related to rows and columns. It can also graphically represent the data as per the user’s requirement.

Answer: (c) Flowchart

Explanation: Flowchart is a structured programming technique that graphically represents the detailed steps required to solve a program. Usually, it shows the steps as boxes of different types, and these boxes are connected with arrows.

Answer: (c) 11259375

Explanation: A, B, C, D, E, AND F are equal to 10, 11, 12, 13, 14, and 15 respectively.

Therefore, equivalent decimal number is,

= (ABCDEF)₁₆

= (10×16⁵ + 11×16⁴ + 12×16³ + 13×16² + 14×16¹ + 15×16⁰)₁₀

= (10485760 + 720896+ 49152+ 3328 + 224 + 15)₁₀

= (11259375)₁₀

Answer: (d) VDU

Explanation: The full form of VDU is the Visual Display Unit. It is a hardware output device that uses a cathode ray tube to display a visual image.

Answer: (d) Mouse

Explanation: A mouse is a hardware input device that controls a cursor on a computer. With the help of the mouse, you can select, open, and move files, icons, folders, and text on the PC.

Answer: (a) .txt

Explanation: The .txt file extension is a standard text document extension that contains the unformatted text. It is the default file extension for the notepad.

Answer: (a) By operating system

Explanation: BIOS is used by the operating system. It is used to configure and identify the hardware in a system such as the hard drive, floppy drive, optical drive, CPU, and memory.

Answer: (a) Restarting computer

Explanation: Booting is a process of the restart the computer. After restarting it, there is no software in the computer’s main memory.

Answer: (c) Incorrect data entry

Explanation: None

Answer: (b) System unit

Explanation: The central processing unit is located in the system unit. The system unit controls the entire computer. It includes RAM, Processors, Optical drive, Power supply, Fans, Hardware, Peripheral devices, BIOS, etc.

Answer: (d) JPG, GIF, BMP

Explanation: JPG, GIF, BMP are all extensions of graphical file. JPG stands for Joint Photographic Experts Group, GIF stands for Graphics Interchange Format, and BMP stands for Bitmap Image File.

Answer: (c) 1024 megabytes

Explanation: One gigabyte is made up of 1024 megabytes.

1024 KB = 1 MB

1024 MB = 1 GB

Answer: (c) 4096

Explanation:

1 kb = 2¹⁰ bytes in binary

1 kb = 1024 bytes in binary

4 kb = 4 * 1024 bytes

= 4096 bytes

Answer: (a) Operating system

Explanation: An OS is a kind of program that acts as an intermediary for computer hardware and computer user. The purpose of an operating system is to provide a user-friendly and effective environment.

Answer: (a) Assembly language

Explanation: An assembly language is a scripting language capable of telling the computer explicitly what to do.

Answer: (c) 11 and 15

Explanation: 1011 = 1 × 2³ + 0 × 2² + 1 × 2¹ + 1 × 2⁰

= 8 + 0 + 2 + 1

= 11

1111 = 1 × 2³ + 1 × 2² + 1 × 2¹ + 1 × 2⁰

= 8 + 4 + 2 + 1

= 15

Answer: (d) Floppy disk

Explanation: Floppy disk is not an internal components of a CPU. It is a component of the secondary storage and external storage. It is a kind of data storage device.

Answer: (c) Gigahertz

Explanation: The computer clock speed is normally calculated in gigahertz (GHz) or megahertz (MHz). a gigahertz is equal to one billion ticks per second, and a megahertz is equal to one million ticks per second.

Answer: (b) Random Access Memory

Explanation: The full name of RAM is random access memory. It is a hardware device located in a computer that stores data temporarily. Temporary means it only stores data for some time. RAM is also called main memory, primary memory, or system memory.

Answer: (b) Dynamic Random-Access Memory

Explanation: The full name of DRAM is dynamic random-access memory. It needs a refresh power to work and it has transistor and capacitor for the memory cell. It is used in video game consoles, networking hardware, and system memory, etc.

Answer: (d) Spreadsheet

Explanation: Spread Sheet is the most appropriate for performing numerical and statistical calculation. A spreadsheet is a computer application that is a copy of a paper that calculates a worksheet. It displays several cells that together form a mesh that includes rows and columns, each cell containing alphanumeric text, numeric values, or formulas.

Answer: (a) Operating system

Explanation: The operating system (OS) is a software that acts as an interface between a computer and a user. It is also called system software. OS is the first program to be loaded into a computer. It manages all the operations of the computer.

Answer: (c) Magnetic tape

Explanation: Magnetic tape is exclusively a sequential access storage device. Sequential access memory is a type of data storage devices that read and write the data in a series.

Answer: (b) Print from 1 to 2

Explanation: None

Answer: (a) Static Random-Access Memory

Explanation: The full name of SRAM is static random-access memory. It needs a constant power to work. Due to continuous power, it does not need to be refreshed.

Answer: (d) Universal System Bus

Explanation: The full name of USB is Universal Serial Bus. It is a common interface that allows the communication between two devices.

Answer: (a) A database

Explanation: A database is a collection of information that is organized in such a way that information can be easily accessed, managed, and updated. In the database, we can quickly and easily select the desired data. For example, the dictionary is analogous to a database that is like a file.

Answer: (d) CPU, Memory, System bus, Input, Output

Explanation: None

Answer: (d) 0 and 1

Explanation: Binary numbers are represented by 0 and 1. The computer only works on binary numbering systems because according to electronics, any signal can either be in the on state or in the off state.

Answer: (c) CO₂

Explanation: None

Answer: (d) a, b, d

Explanation: None

Answer: (a) Any document can be saved as a template.

Explanation: A template is a file that acts as a framework for a new text. Any document or text can be saved as a template.

Answer: (b) It propagates through the internet and e-mail.

Explanation: A worm virus is a malicious file. This virus can be spread across a network without human aid. It also requires a large amount of bandwidth and memory. It spreads through the internet and e-mail.

Answer: (a) SCSI interface

Explanation: A hard disk drive can be directly connected to a PC via a SCSI interface. SCSI is a group of protocols that send the data between computers and external devices in a physical manner.

Answer: (b) Reduced the size and cost of computers

Explanation: The use of the IC in a computer has reduced the cost of computers. It is an incredibly small electronics chip integrated with a set of electrical circuits and transistors. It is a very small chip.

Answer: (c) Module 1

Explanation: None

Answer: (b) Small computer system interface

Explanation: The full name of SCSI is Small computer system interface. SCSI is a group of protocols that send the data between computers and external devices in a physical manner.

Answer: (c) Speaker

Explanation: Speaker is a hardware output device that is used for listening to audio by connecting it to a computer and other devices. The computer’s sound card produces sound waves from the speaker.

Answer: (d) Internet explorer

Explanation: Internet explorer is a web browser software on the windows computer. It helps to search for anything in the world through the Internet. It is also known as Microsoft Edge. If you use a Windows computer, this software is already installed on your computer.

Answer: (c) Ctrl + C

Explanation: Ctrl C is a copy command on the computer. It is a very useful command. This command first selects the text, files, and any data that is stored in the computer’s hard disk and then copies it. It is a shortcut key on the computer.