Object-Oriented Programming (OOP) is a programming paradigm that revolves around the concept of objects, which are data structures consisting of data fields and methods together with their interactions. This approach emphasizes data encapsulation, modularity, and code reusability.

The OSI model (Open Systems Interconnection model) is a conceptual framework that describes the different layers of communication in a network. It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

Adware is a type of software that displays unwanted advertisements on a user's computer. It is not a virus, as it does not replicate itself or cause damage to the system.

A compiler is a computer program that translates high-level programming language code into machine code, which can be directly executed by a computer's processor.

An array is a fundamental data structure that stores a collection of elements of the same type, using contiguous memory locations. It allows efficient access and manipulation of data elements based on their index.

Agile methodology is a software development approach that emphasizes flexibility, adaptability, and iterative development. It involves breaking down a project into smaller, manageable tasks and working in short cycles to deliver incremental results.

HTTP (Hypertext Transfer Protocol) is a widely used protocol for data communication over the internet. It is primarily used to transfer web pages and other resources between web browsers and web servers.

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predefined security rules. Its primary purpose is to prevent unauthorized access to a network and protect it from malicious attacks.

Supervised Learning is a type of AI where a model is trained on a dataset consisting of labeled data. The model learns to map input data to the corresponding output labels, enabling it to make predictions on new, unseen data.

Ray tracing is a computer graphics technique that simulates the path of light rays through a scene to generate realistic images. It takes into account factors such as reflection, refraction, and shadows to create highly detailed and lifelike renderings.

Python is a widely used programming language for web development. It is known for its simplicity, versatility, and extensive library support, making it a popular choice for building dynamic and interactive web applications.

A load balancer is a network device that distributes incoming traffic across multiple servers. It helps to improve the overall performance and reliability of a network by preventing any single server from becoming overloaded.

A Hierarchical Database is a type of DBMS that organizes data in a tree-like structure. It consists of parent-child relationships, where each parent can have multiple children, but each child can have only one parent.

An operating system (OS) is a software that manages computer hardware resources and provides basic services to application programs. It acts as an interface between the hardware and the application software, enabling efficient utilization of resources and smooth execution of programs.

A Local Area Network (LAN) is a type of computer network that connects devices within a limited physical area, such as a home, office, or school. It allows devices to communicate with each other and share resources.