An abstract data type that represents a countable number of ordered values, where the same value may occur more than once.

"Lists are used in programming to store sequences of data that can be modified, with elements being added, removed, or changed."

The part of the website or app that the user sees and interacts with directly.

"Front end development involves HTML, CSS, and JavaScript to create the visual and interactive aspects of a website."

A markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable, often used for data interchange, configuration files, and representing structured data in web services and APIs.

"The configuration file was written in XML format for easy readability and extensibility."

A systematic approach to managing all changes made to a product or system, ensuring that no unnecessary changes are made, all changes are documented, and that services are not unnecessarily disrupted.

"Effective change control management is essential for minimizing the impact of changes in IT projects and ensuring that only approved modifications are implemented."

A technology that enables voice communication and multimedia sessions over the internet, allowing users to make phone calls, video calls, and send messages using IP-based networks, often providing cost savings and flexibility compared to traditional telephony systems.

"Skype and Zoom are popular VoIP services for video conferencing and online meetings."