Computer Application Trivia

Explanation
A USB stick is a type of device that is used for storage purposes. It is a portable device that can be plugged into a computer or other electronic devices to transfer and store data. USB sticks typically have a large storage capacity and are commonly used to backup files, transfer data between devices, or carry important documents and files on the go. Therefore, the correct answer is "Storage".

Explanation
USB stands for Universal Serial Bus. This is a standard interface that allows devices to be connected and communicate with each other. It is widely used for connecting peripherals such as keyboards, mice, printers, and external storage devices to computers. The term "universal" signifies its compatibility with various devices and the term "serial bus" refers to the way data is transferred in a sequential manner. Therefore, Universal Serial Bus is the correct expansion of the acronym USB.

Explanation
Input devices are used to send commands or instructions to the computer. These devices allow users to interact with the computer by providing input in the form of commands, data, or instructions. Examples of input devices include keyboards, mice, touchscreens, scanners, etc. These devices enable users to input data or commands which are then processed by the computer to perform specific tasks or operations. Therefore, the correct answer is "Send commands to the computer."

Explanation
The question asks for two types of input devices. Headphones and microphone are not input devices, as they are used for output and input respectively. However, keyboard and mouse are both input devices commonly used to provide input to a computer.

Explanation
The correct answer is Central Processing unit. CPU stands for Central Processing unit, which is the main component of a computer system responsible for carrying out instructions of a computer program by performing basic arithmetic, logical, control, and input/output operations. It is often referred to as the "brain" of the computer as it executes most of the processing inside the computer.

Explanation
RAM stands for Random Access Memory. It is a type of computer memory that allows data to be stored and retrieved quickly. Unlike other types of memory, RAM is volatile, meaning that it requires power to maintain its stored data. Random access refers to the ability to access any memory location directly, rather than sequentially. RAM is an essential component in computers and other electronic devices as it provides temporary storage for data that is actively being used by the CPU.

Explanation
ROM stands for Read Only Memory. It is a type of computer memory that stores data that cannot be modified or erased. The data stored in ROM is permanent and remains intact even when the computer is turned off. It is used to store firmware, which contains the instructions necessary for the computer to start up and perform basic functions. Unlike RAM (Random Access Memory), which is volatile and can be read from and written to, ROM is non-volatile and can only be read from.

Explanation
Adding a password to a document is a common security feature in many software applications. By adding a password, the document becomes encrypted and can only be accessed by individuals who know the password. This helps to protect sensitive or confidential information from unauthorized access. Therefore, the statement "You can add a password to a document" is true.

Explanation
A microphone is a device used to convert sound waves into electrical signals, which can then be amplified or recorded. It acts as an input device, capturing sound and converting it into an electrical signal that can be processed by other devices such as speakers, recording equipment, or computers.