Parts of a Computer - 2 - Free MCQ Practice Test with solutions,

To complete the given tasks, you will need the following parts of a computer:
Keyboard:
- The keyboard is required to type the letters on the computer.
- It allows you to input text and commands into the computer.
Printer:
- A printer is needed to create a copy of the letters on a sheet of paper.
- It takes the digital information from the computer and prints it onto paper.
Therefore, the correct answer is Both (a) and (b), which means you need both the keyboard and printer to perform the given tasks.

The answer is B: Microphone.
Explanation:
The device used for sound input to the CPU of a computer is a microphone. Here's why:
- Microphone: A microphone is a device that converts sound waves into electrical signals. It is used to capture audio input, such as spoken words or music, and convert it into a digital format that can be processed by the CPU.
- Printer: A printer is a device used to create a physical copy of electronic documents or images. It is not used for sound input to the CPU.
- Mouse: A mouse is a pointing device that is used to control the movement of the cursor on a computer screen. It is not used for sound input to the CPU.
- Speaker: A speaker is a device used to output sound or audio. It is not used for sound input to the CPU.
In summary, the microphone is the device specifically designed for sound input to the CPU of a computer.

The correct answer is A: Webcam.
Explanation:
Input devices are hardware devices that are used to input data and instructions into a computer. They allow users to interact with the computer system and provide input for processing.
A lens is a transparent piece of glass or plastic that can focus or diverge light. It is commonly used in optical devices to capture and focus light onto a sensor or film.
Among the given options, the input device that has a lens is a webcam.
Webcam:
- A webcam is a video camera that is connected to a computer or computer network.
- It is primarily used for video calling, video conferencing, and capturing video footage.
- Webcams often have a lens that helps in capturing clear and focused images.
- The lens in a webcam allows it to focus light onto the image sensor, which then captures the video or image.
Therefore, the correct answer is A: Webcam.

Special Keys in Computer
Introduction:
Special keys in a computer refer to specific keys on the keyboard that have unique functions or purposes. These keys are designed to perform specific actions or provide quick access to certain features or commands.
Options:
The given options are:
A: Image of a keyboard with special keys
B: Image of a computer monitor
C: Image of a computer CPU
D: Both (a) and (b)

Among the given options, the correct answer is A, which is an image of a keyboard with special keys. The other options, B and C, depict a computer monitor and a computer CPU respectively, which do not have special keys.
Explanation:
A keyboard is an essential input device of a computer and contains various keys, including special keys. These special keys serve different purposes and provide additional functionality to the user. Some common special keys found on a keyboard include:
1. Function keys (F1, F2, F3, etc.): These keys are typically located at the top row of the keyboard and perform specific functions depending on the software or application being used.
2. Control keys (Ctrl, Alt, Shift): These keys are used in combination with other keys to perform keyboard shortcuts or access specific commands.
3. Windows key: This key, usually found on Windows-based keyboards, opens the Start menu and provides access to various Windows functions.
4. Escape key (Esc): This key is used to cancel or close an operation or dialog box.
5. Navigation keys (Arrow keys, Home, End, Page Up, Page Down): These keys allow the user to navigate within documents, web pages, or software interfaces.
6. Enter key: This key is used to execute a command or confirm an input.
7. Backspace and Delete keys: These keys are used to delete characters or objects.
Therefore, a keyboard is the part of a computer that has special keys, as depicted in option A.

Answer:
The correct answer is C. The image in option C resembles an animal, specifically a turtle.
Explanation:
The given options are images of different computer parts. Among these options, only option C resembles an animal. Here is a detailed explanation of each option:
A: This image shows a motherboard, which is a crucial component of a computer. However, it does not resemble an animal.
B: This image shows a hard disk drive, which is used for data storage. It does not resemble an animal.
C: This image shows a computer mouse, which is a pointing device. It closely resembles a turtle, with its shape and the buttons on top resembling a turtle's head and legs.
D: This image shows a computer keyboard. Although it has a rectangular shape, it does not resemble an animal.
Therefore, option C is the correct answer as it is the only image that resembles an animal, specifically a turtle.