Desktop Computer Basics Quiz

Explanation
CD-ROM stands for Compact Disk - Read Only Memory. A CD-ROM is a type of optical disk that can store large amounts of data, including text, images, audio, and video. The term "Compact Disk" refers to the physical format of the disk, which is a flat, circular disc. The term "Read Only Memory" indicates that the data on the disk is read-only, meaning it cannot be modified or erased. CD-ROMs are commonly used for distributing software, games, and multimedia content.

Explanation
The correct answer is keyboard and mouse because these are the two most commonly used input devices for entering information into a computer. The keyboard allows users to type in text and commands, while the mouse allows for navigation and selection of objects on the screen. Together, they provide a comprehensive and efficient means of interacting with a computer system.

Explanation
A scanner is a device that can capture an image or document and convert it into a digital format, allowing it to be stored, edited, or shared on a computer. This process involves using a light-sensitive sensor to detect the image or text on the physical document and then transferring that information into digital data that can be processed by the computer. Therefore, the statement that a scanner copies a picture or document into the computer is true.

Explanation
A touchpad is a device that allows you to control the movement of the cursor on a computer screen by sliding your finger across its surface. It does not have the capability to project information onto a whiteboard. Therefore, the statement "A touchpad allows you to project information from a pad onto a whiteboard" is false.

Explanation
The most common output device is a monitor because it is used to display visual output from a computer. Monitors are essential for tasks such as viewing documents, browsing the internet, watching videos, and playing games. They provide a visual interface that allows users to interact with the computer and view the information being processed. While speakers and printers are also output devices, they serve different purposes. Speakers produce audio output, while printers produce physical copies of documents. Scanners, on the other hand, are input devices used to convert physical documents into digital format.

Explanation
RAM stands for Random Access Memory, which is a type of computer memory that allows data to be stored and accessed quickly by the computer's processor. It is a volatile memory, meaning that its contents are lost when the computer is turned off or restarted. RAM is an essential component of a computer system as it directly affects the overall performance and speed of the system. Therefore, the statement "RAM stands for Random Access Memory" is true.

Explanation
The mouse is not an input device. It is a pointing device used to navigate and interact with graphical user interfaces on a computer screen. Input devices are used to enter data or commands into a computer system, such as scanners, digital tablets, and graphic tablets.

Explanation
A DVD drive allows users to read information from the disk but does not have the capability to write or record information onto the disk. Therefore, the statement is false.

Explanation
The memory port is not used to connect to wireless internet. A memory port is a physical connection on a device that allows for the transfer of data between the device and an external storage device, such as a memory card or a USB drive. It is not related to connecting to wireless internet, which typically requires a wireless network adapter or a Wi-Fi connection. Therefore, the correct answer is False.

Explanation
The battery on a laptop is used as its life line because it provides the necessary power to keep the laptop running when it is not connected to a power source. Without a functioning battery, the laptop would not be able to operate independently and would require a constant power supply. Therefore, the statement is true.