Aria is setting up her new computer. What is the main function of the computer case?

• To print documents

• To input data into the computer

• To contain the main components of the computer

• To display images and text

Answer explanation

The main function of the computer case is to contain the main components of the computer, such as the motherboard, power supply, and storage devices, providing protection and organization.

Which type of monitor is known for being thin and often called flat-panel?

• OLED

• Plasma

• CRT

• LCD

Answer explanation

LCD monitors are known for their thin design and are often referred to as flat-panel displays. Unlike CRT and Plasma monitors, which are bulkier, LCD technology allows for a more compact form factor.

What is the primary purpose of the keyboard?

• To communicate with the computer

• To store data

• To provide power to the computer

• To display images

Answer explanation

The primary purpose of the keyboard is to communicate with the computer by allowing users to input data and commands. Other options like storing data, providing power, or displaying images do not relate to the keyboard's function.

Emma is working on her computer and wants to take a screenshot of her current screen. Which key should she use?

• Scroll Lock

• Print Screen

• Pause/Break

• Escape

Answer explanation

To take a screenshot on most computers, Emma should use the 'Print Screen' key. This key captures the current screen and allows her to paste it into an image editor or document.

What is the function of the Enter key?

• To delete text

• To open the Help file

• To execute commands

• To move the cursor

Answer explanation

The Enter key is primarily used to execute commands, such as submitting forms or confirming actions. While it can also move the cursor in some contexts, its main function is to execute commands.

Which device is known as a pointing device?

• Printer

• Mouse

• Monitor

• Keyboard

Answer explanation

The mouse is a pointing device that allows users to interact with a computer's graphical interface by moving a cursor on the screen. Unlike a printer, monitor, or keyboard, it is specifically designed for pointing and clicking.

What is a trackball?

• A type of keyboard

• A type of printer

• A type of monitor

• A mouse alternative with a rotating ball

Answer explanation

A trackball is a pointing device that consists of a rotating ball housed in a socket, allowing users to control the cursor by rotating the ball, making it an alternative to traditional mice.

What is the main advantage of an optical mouse over a mechanical mouse?

• It is larger

• It is more colorful

• It is easier to clean

• It is cheaper

Answer explanation

The main advantage of an optical mouse over a mechanical mouse is that it is easier to clean. Optical mice do not have moving parts that can accumulate dirt and debris, making maintenance simpler.

Which key combination is commonly used to save a file?

• Ctrl + V

• Ctrl + P

• Ctrl + S

• Ctrl + C

Answer explanation

The key combination Ctrl + S is widely recognized as the shortcut for saving a file in most software applications. The other options serve different functions: Ctrl + C for copy, Ctrl + V for paste, and Ctrl + P for print.

What is the purpose of the Tab key in word processing programs?

• To delete text

• To create indents

• To close the program

• To open a new document

Answer explanation

The Tab key is primarily used in word processing programs to create indents, helping to format text and organize content. It does not delete text, close programs, or open new documents.