Practical Quiz-1 Grade 2

The correct answer is "Keyboard,keyboard,KEYBOARD" because the keyboard is the input device used to type letters and numbers into the computer. It consists of a set of keys, including letters, numbers, and special characters, which are pressed to input data into the computer. The answer options provided are different variations of the correct term "keyboard" written in different cases, but they all refer to the same input device.

The statement is true because a mouse is a common input device used to interact with a computer. It typically has buttons that can be clicked to select items on the screen, such as icons, menus, or links. By moving the mouse cursor and clicking on an item, the user can effectively select or choose that item. Therefore, the statement accurately states that a mouse is used to select items.

Input devices are indeed used to enter data into a computer. These devices allow users to input information, commands, and instructions into the computer system. Examples of input devices include keyboards, mice, touchscreens, scanners, and microphones. These devices are essential for interacting with and providing input to the computer.

The correct answer is CPU because the processor, also known as the central processing unit, is the main component of a computer that carries out instructions of a computer program by performing basic arithmetic, logical, control, and input/output operations. It is responsible for executing tasks and processing data, making it an essential part of a computer system. The keyboard, mouse, and speaker are peripheral devices that are connected to the CPU but not placed inside it.

Speakers are audio output devices that are used to produce sound. They are commonly used in devices such as computers, televisions, and music players to amplify and play audio. Therefore, the correct answer is "Hear sound" as speakers are primarily used for this purpose.

The statement "Monitor is the brain of the computer" is incorrect. The brain of the computer is the central processing unit (CPU), which is responsible for executing instructions and performing calculations. The monitor, on the other hand, is an output device that displays the processed information from the CPU. Therefore, the correct answer is False.

The correct answer is Monitor, Speakers. Both the monitor and speakers are output devices because they receive information from the computer and display or play it for the user. The mouse and keyboard, on the other hand, are input devices as they allow the user to input information into the computer.

The correct answer is "Printer, printer." This suggests that the device being identified is a printer. The repetition of the word "printer" reinforces this identification.