File Formats & EncodingWhat is JSON (JavaScript Object Notation)? JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that is easy for both humans to read and machines to parse. Originally derived from JavaScript, JSON has become the de facto standard for data exchange in web APIs, configuration files, and cross-platform communication. Its simplicity and language...
Programming LanguagesWhat is Python? Python is a high-level, interpreted, general-purpose programming language created by Guido van Rossum and first released in 1991. It is designed with a philosophy emphasizing code readability, simplicity, and expressiveness, making it accessible to beginners while remaining powerful enough for experienced developers. The name “Python” does not come from the snake, but...
Version Control & CI/CDWhat is Git? Git is a distributed version control system created by Linus Torvalds in April 2005. It is designed to track changes to source code, documentation, and other text-based files, enabling multiple developers to collaborate efficiently. Git has become the industry standard for version control in software development and is widely used through platforms...
RDB & SQLWhat is SQL (Structured Query Language)? SQL (Structured Query Language) is the standard programming language for managing, manipulating, and querying relational databases. It enables users to perform critical database operations including data retrieval, insertion, updating, and deletion. SQL serves as the foundation for data management across virtually all modern database systems and remains one of...
APIs & SDKsREST (Representational State Transfer) is an architectural design principle for building distributed hypermedia systems. REST defines a set of constraints for creating web services that are simple, scalable, and maintainable. By leveraging HTTP protocol semantics and designing APIs around resources and standard HTTP methods, REST enables the construction of intuitive and interoperable web services that...
Virtualization & ContainersWhat is Docker? Docker is a containerization platform that packages applications and their dependencies into lightweight, isolated environments called containers. This ensures consistent execution across development, testing, and production environments. Docker solves the classic problem of “it works on my machine but not in production” by providing a unified, reproducible environment for application deployment and...
ProtocolsHTTP (HyperText Transfer Protocol) is a client-server application layer protocol used to transmit text, images, video, and other media across the World Wide Web. As the foundational protocol of the Internet, HTTP enables communication between web browsers and servers. Its stateless, request-response design allows simple yet efficient communication. How to Pronounce HTTP aitch-tee-tee-pee /ˌeɪtʃ.tiː.tiː.ˈpiː/ aitch-tee-tee-pee...
APIs & SDKsWhat is an SDK? A Software Development Kit (SDK) is a comprehensive package of tools, libraries, documentation, code samples, and other resources designed to help developers build applications for a specific platform or service. It provides an integrated development environment that enables developers to efficiently create applications while maximizing the capabilities of the target platform....
Encryption & AuthenticationSSL (Secure Sockets Layer) is a cryptographic protocol that encrypts internet communications between clients and servers. It protects sensitive data such as passwords, credit card information, and personal details from being intercepted or modified during transmission. Although SSL has been technically superseded by TLS (Transport Layer Security) since 1999, the term “SSL” remains widely used...
ProtocolsDNS (Domain Name System) is a distributed hierarchical naming system that converts domain names into IP addresses. It automatically translates human-readable domain names (such as example.com) into machine-readable IP addresses (such as 192.0.2.1) for all communications across the internet. Without DNS, users would need to memorize complex numerical IP addresses, making the internet significantly less...
