A modifier key is a key that, when pressed in combination with another key, modifies the function of that key. The Shift key is a modifier key because it is used in combination with other keys (e.g., to type uppercase letters or special characters).

A field is a part of a database that holds only one type of information. For example, in a customer database, a field might hold the customer's name, phone number, or address.

In the context of databases, an instance refers to the collection of data stored in the database at a particular point in time. It represents the state or content of the database at that moment.

Flash memory is a type of Electrically-Erasable Programmable Read-Only Memory (EEPROM). It is used for storing data in a way that can be electrically erased and reprogrammed. Flash memory is commonly found in devices like USB drives, SSDs, and memory cards.

Yahoo was developed by David Filo and Jerry Yang in 1994. They created Yahoo as a directory of websites, which later evolved into a leading internet portal and web services company.

A Local Area Network (LAN) is a network of computers and other devices that is confined to a relatively small geographic area, such as a home, office, or building. It allows devices to communicate with each other within this limited space.

A Wide Area Network (WAN) covers a much larger geographic area, such as multiple cities or countries.

A Peer-to-Peer Network (P2P) is a type of network where each device (peer) can act as both a server and a client.

A Global Area Network (GAN) is not a standard term used in networking.

A WAN (Wide Area Network) is a network whose elements may be separated by large distances. It typically connects multiple smaller networks (such as LANs) using high-speed telephone lines, leased lines, or other communication methods to enable long-distance communication.

URL stands for Uniform Resource Locator, which is the address used to access websites.

LAN (Local Area Network) refers to a network confined to a small geographic area, like a single building or office.

WWW (World Wide Web) is a system of interlinked hypertext documents accessed via the internet.

A Virtual Private Network (VPN) extends a private network across public networks (like the internet). It allows users to securely send and receive data as if their devices were directly connected to a private network, ensuring confidentiality and security through encryption.

A watermark is a faint image or text that appears behind the main body of text in a document, often used for branding, security, or decorative purposes. It is typically dim or transparent, ensuring that it does not interfere with the readability of the text.

MS Excel is a spreadsheet software used for creating, organizing, analyzing, and storing data in tabular form. It allows users to perform calculations, use formulas, and create graphs.

MS Access is a database management software, used for creating and managing databases.

MS PowerPoint is a presentation software, used for creating slideshows and presentations.

MS Word is a word processing software, used for creating and editing text documents.