Introduction To Computer MCQ Questions With Answers

Explanation
A computer is an electronic tool that allows information to be input, processed, and output. It consists of various components such as the motherboard, CPU, and operating system, which work together to perform these functions. The motherboard is the main circuit board that connects all the components, while the CPU is the central processing unit responsible for executing instructions. The operating system is the software that manages the computer's resources and provides a user interface. However, the computer as a whole encompasses all these components and functions.

Explanation
The correct answer is Internet. The Internet is a worldwide network of computers that are connected to each other and exchange information. It allows users to access and share data, communicate with others, and browse websites from anywhere in the world. The Internet has revolutionized the way people communicate, work, and access information, making it an essential part of modern life.

Explanation
The CPU, or Central Processing Unit, is often referred to as the brain of the computer because it is responsible for performing calculations, executing instructions, and processing data. It is the component that carries out all the necessary operations to run programs and perform tasks. The CPU receives input from various sources, processes it, and then sends the output to the appropriate components. In summary, the CPU is the key component that handles the calculation, movement, and processing of information in a computer system.

Explanation
The part of a computer that allows a user to put information into the computer is called an input device. Input devices are hardware components that enable users to input data or commands into the computer system. Examples of input devices include keyboards, mice, scanners, and microphones. These devices allow users to interact with the computer and provide the necessary input for processing and executing tasks.

Explanation
An icon is a small picture that represents a folder, program, or other things. Icons are used to visually represent different objects or actions on a computer screen, making it easier for users to identify and interact with them. Icons are commonly found on the desktop, in file managers, and in various software applications.

Explanation
RAM stands for Random Access Memory, which is the computer's short-term memory that is lost when the computer is turned off. It is a volatile memory that stores data that is actively being used by the computer's operating system and applications. When the computer is powered off, the data stored in RAM is erased, which is why it is considered as short-term memory. CPU, hardware, and processor are not the correct answers as they refer to different components and functionalities of a computer.

Explanation
The motherboard is the correct answer because it is the main circuit board of a computer that connects and allows communication between all other components. It houses the central processing unit (CPU), memory, storage, and other essential components. It provides the electrical connections and pathways for data transfer and power distribution, enabling all the different parts of the computer to work together effectively.

Explanation
The physical components of a computer, such as the motherboard, processor, memory, and peripherals, are collectively referred to as hardware. This term encompasses all the tangible parts that can be seen and touched. Hard drive and disk drive are specific components of hardware, while software refers to the non-physical programs and instructions that run on the hardware. Therefore, the correct answer is hardware.

Explanation
Output devices are the parts of a computer that allow the user to see or hear information that comes out from the computer. These devices include monitors, speakers, printers, and headphones. They are responsible for displaying or producing the results of the computer's processing, such as text, images, sound, or video.

Explanation
The correct answer is Hard Drive. A hard drive is a computer part that stores programs and other information on two or more disks that are located inside the computer. It is a non-volatile storage device that retains data even when the computer is turned off. The hard drive provides long-term storage for the operating system, software applications, and user data. It allows for quick access and retrieval of stored information, making it an essential component of a computer system.

Explanation
A disk drive is a part of the computer that reads information from a disk. It is responsible for retrieving data stored on various types of disks, such as hard drives, optical drives, or floppy drives. The disk drive consists of a mechanism that spins the disk and a read/write head that moves across the disk's surface to read or write data. This component is essential for accessing and transferring data between the computer and the disk storage medium.

Explanation
Computer programs are often referred to as software. Software is a collection of instructions and data that tells a computer how to perform specific tasks. It includes applications, operating systems, and other programs that enable users to interact with the computer and perform various functions. RAM, input devices, and hardware are all components of a computer system but do not specifically refer to computer programs. Therefore, the correct answer is software.

Explanation
An operating system is a program that controls a computer's basic functions, such as managing hardware resources, running applications, and providing a user interface. It acts as an intermediary between the user and the computer hardware, allowing users to interact with the computer and perform tasks efficiently. The operating system is responsible for managing memory, handling input and output devices, scheduling tasks, and ensuring overall system stability and security.