List of 116+ Computer Jargon – Explained! [Complete List]


In today’s digital age, where technology intertwines with every aspect of our lives, understanding computer jargon has become essential. From everyday conversations to professional settings, a myriad of technical terms and acronyms float around, often leaving newcomers feeling overwhelmed and confused. But fear not! In this article, we will unravel the mysteries of computer jargon and provide you with a comprehensive guide to understanding and navigating this ever-expanding lexicon.

Computer jargon, also known as tech-speak or geek lingo, encompasses a wide range of specialized terms used in the world of computing and information technology. It’s a language of its own, with words and phrases that may seem unfamiliar and perplexing to the uninitiated. However, gaining familiarity with these terms is not only empowering but also essential for effective communication and problem-solving in today’s digital landscape.

Whether you’re a novice exploring the realms of computers, a curious individual seeking to demystify the technological wonders of the modern era, or a professional venturing into the vast domains of IT, this guide will serve as your compass. We’ll delve into the depths of computer jargon, demystifying the terminology and providing clear explanations in a human-friendly manner.

From fundamental concepts such as algorithms and APIs to advanced topics like virtualization and machine learning, we’ll cover a diverse array of terms that you’re likely to encounter. We’ll explain these terms in plain language, devoid of complex technical jargon, to ensure that the information is accessible and easily digestible for readers at all levels of technical expertise.

So, whether you’ve found yourself scratching your head when hearing words like “backend,” “firewall,” or “responsive design,” or if you simply want to expand your tech vocabulary, this guide will equip you with the knowledge you need to navigate the digital realm confidently. By the end of this article, you’ll have a solid foundation in computer jargon, empowering you to engage in meaningful conversations, grasp the latest technological developments, and comprehend the intricacies of the digital world.

Join us on this exciting journey through the labyrinth of computer jargon, as we unlock the doors to a universe of technical understanding and demystify the language that shapes our digital lives.

Remember, the world of computers and technology should be accessible to all, and with this guide, we aim to bridge the gap between technical jargon and human comprehension. Let’s embark on this adventure together!

List of computer jargon

Term Explanation
Algorithm It’s like a recipe for computers, a set of instructions that tells them how to solve a particular problem or perform a specific task.
API An API is a way for different software applications to communicate and interact with each other, like a language they use to talk to one another.
Bandwidth Bandwidth refers to the amount of data that can be transmitted over a network connection within a given period of time, like a pipe’s capacity.
BIOS BIOS stands for Basic Input/Output System. It’s firmware that initializes hardware components when a computer starts up, like a computer’s DNA.
Blockchain Think of a blockchain as a decentralized and transparent digital ledger that records transactions, making it difficult to tamper with or alter.
Byte A byte is a basic unit of storage in a computer, typically representing a single character like a letter or a number.
Cache Cache is a small but fast memory that stores frequently accessed data to reduce the time it takes to retrieve information from the main memory.
Cloud Computing Cloud computing is like renting computing power and storage over the internet, allowing you to access and use resources without owning the physical infrastructure.
Compiler A compiler is a software tool that translates human-readable code into machine-readable instructions that a computer can understand and execute.
Cookie A cookie is a small piece of data stored on your computer by a website, containing information such as your preferences or login status.
Cryptocurrency Cryptocurrency is a digital or virtual form of currency that uses cryptography for secure transactions and control of additional unit creation.
Debugger A debugger is a tool that helps programmers find and fix errors or bugs in their code, making it easier to identify and solve problems.
DNS DNS stands for Domain Name System, which translates human-readable domain names (like into machine-readable IP addresses.
Firewall A firewall is a security device or software that monitors and controls incoming and outgoing network traffic, acting as a barrier against threats.
GUI GUI stands for Graphical User Interface, providing a visual way for users to interact with software applications through windows, icons, and buttons.
Hacker A hacker is someone who explores and manipulates computer systems and networks, often with advanced technical skills, sometimes for malicious purposes.
HTML HTML is short for Hypertext Markup Language, the standard markup language for creating web pages and displaying content on the internet.
IP Address An IP address is a unique numerical label assigned to each device connected to a computer network, like a digital address for communication.
Java Java is a widely used programming language known for its portability, security features, and ability to run on different platforms without recompiling.
Kernel The kernel is the core part of an operating system that manages system resources and provides low-level services for software programs to run.
Malware Malware refers to malicious software designed to disrupt, damage, or gain unauthorized access to computer systems or data, like viruses or spyware.
Megabyte A megabyte is a unit of digital information storage, approximately equal to one million bytes, commonly used to measure file sizes or memory capacity.
Network A network is a collection of interconnected devices (such as computers or servers) that can communicate and share resources with each other.
Open Source Open source refers to software that is freely available, allowing users to view, modify, and distribute its source code, promoting collaboration.
PDF PDF stands for Portable Document Format, a file format used to present and exchange documents independent of software, hardware, or operating systems.
PHP PHP is a popular server-side scripting language for web development, allowing dynamic and interactive content to be generated on websites.
RAM RAM stands for Random Access Memory, a type of computer memory that provides temporary storage for data and instructions during program execution.
Router A router is a networking device that forwards data packets between computer networks, ensuring the information reaches its intended destination.
Server A server is a computer or system that provides resources or services to other computers or clients, such as hosting websites or managing network traffic.
Spreadsheet A spreadsheet is a digital document consisting of rows and columns used for organizing and manipulating numerical or textual data, like Excel or Google Sheets.
TCP/IP TCP/IP is the foundational protocol suite for internet communication, enabling devices to establish connections and exchange data across networks.
Trojan Horse A Trojan horse is a type of malware disguised as legitimate software, tricking users into installing it, and allowing unauthorized access to their system.
URL URL stands for Uniform Resource Locator, which is a web address that specifies the location of a resource (like a webpage or a file) on the internet.
Virtual Reality Virtual reality (VR) is an immersive computer-generated experience that simulates a realistic environment, usually through headsets or special displays.
Wi-Fi Wi-Fi is a wireless networking technology that allows devices to connect to the internet or communicate with each other using radio waves.
XML XML stands for eXtensible Markup Language, a flexible and human-readable language used for storing and transporting structured data on the internet.
404 Error A 404 error is an HTTP status code that indicates a webpage or resource was not found on the server, often resulting from a broken or dead link.
AI (Artificial Intelligence) AI refers to the development of computer systems capable of performing tasks that typically require human intelligence, such as speech recognition or decision-making.
API Key An API key is a unique code or token provided to developers, granting them access to use an API and ensuring secure and authorized communication.
Backend Backend refers to the server-side of a web application or software, responsible for handling data storage, processing, and other behind-the-scenes operations.
Big Data Big data refers to large and complex data sets that are difficult to process using traditional data processing applications, requiring specialized tools and techniques.
BIOS Update A BIOS update is a process of updating the firmware of a computer’s BIOS, typically to enhance system stability, add new features, or fix known issues.
Bot A bot, short for robot, is a software program that performs automated tasks over the internet, often interacting with users or other software applications.
CAPTCHA CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart, used to distinguish between humans and bots on websites.
CDN (Content Delivery Network) A CDN is a geographically distributed network of servers that helps deliver web content to users more quickly and efficiently, reducing latency and bandwidth usage.
CMS (Content Management System) A CMS is a software application or platform that allows users to create, manage, and modify digital content, typically used for websites or online publications.
CSS (Cascading Style Sheets) CSS is a style sheet language used to describe the visual appearance and formatting of HTML or XML documents, enabling web designers to control the presentation of web content.
Data Mining Data mining involves extracting meaningful patterns or knowledge from large sets of data using various techniques and algorithms, aiding in decision-making and predictive analysis.
Firewall A firewall is a security device or software that monitors and controls incoming and outgoing network traffic, acting as a barrier against threats.
Frontend Frontend refers to the client-side of a web application or software, encompassing the user interface, design, and interaction elements visible to users.
Hackathon A hackathon is an event where programmers, developers, and designers come together to collaborate on software projects, often within a specified timeframe.
IDE (Integrated Development Environment) An IDE is a software application that provides comprehensive tools and features to facilitate software development, including code editing, debugging, and testing capabilities.
IoT (Internet of Things) IoT refers to the network of interconnected physical devices (such as sensors, appliances, or vehicles) embedded with software, sensors, and connectivity, enabling them to exchange data and interact with each other.
Kernel Panic Kernel panic is an error condition in operating systems, particularly Unix-based systems, when the kernel encounters a critical error and cannot recover, requiring a system reboot.
LAN (Local Area Network) A LAN is a network that connects devices within a limited geographic area, such as a home, office, or school, enabling local data sharing, file transfers, and resource access.
Metadata Metadata refers to descriptive information about data, such as its format, source, author, or creation date, providing context and facilitating efficient data organization and retrieval.
OCR (Optical Character Recognition) OCR is a technology that converts scanned or handwritten text into machine-readable text, enabling computers to recognize and process printed or written documents.
Packet A packet is a unit of data transmitted over a network, containing a payload (information) and header information that directs its routing and delivery to the intended recipient.
Phishing Phishing is a fraudulent activity where attackers impersonate legitimate entities (such as banks or websites) to deceive individuals into revealing sensitive information, often through deceptive emails or websites.
Plugin A plugin is a software component that adds specific features or functionalities to an existing application or web browser, extending its capabilities without modifying the core program.
Root Root refers to the administrative or superuser account in Unix-like operating systems, granting full control and unrestricted access to system resources and settings.
RSS (Really Simple Syndication) RSS is a web feed format used to publish frequently updated content, such as blog posts or news articles, allowing users to subscribe and receive updates from multiple sources in a standardized format.
Sandbox A sandbox is a restricted environment that isolates applications or software processes from the rest of the system, minimizing the potential impact of malicious or faulty code.
SEO (Search Engine Optimization) SEO is the practice of optimizing websites or web pages to improve their visibility and ranking in search engine results, increasing organic (non-paid) traffic and audience reach.
SQL (Structured Query Language) SQL is a programming language used to manage and manipulate relational databases, allowing users to store, retrieve, and manipulate data, as well as define database structures and relationships.
SSL/TLS SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are cryptographic protocols that provide secure and encrypted communication over the internet, ensuring data confidentiality and integrity.
SVG (Scalable Vector Graphics) SVG is an XML-based vector graphics format used to represent two-dimensional images or drawings, allowing them to be scaled and resized without losing quality or pixelation.
SaaS (Software as a Service) SaaS is a software distribution model where applications are hosted and provided over the internet, allowing users to access and use them on a subscription basis, typically through a web browser.
Serverless Serverless refers to a cloud computing model where developers can write and deploy code without having to manage or provision servers, allowing them to focus solely on the application’s functionality.
Snapshot A snapshot is a read-only copy or image of a system, data, or virtual machine captured at a specific point in time, allowing for system recovery or data restoration if needed.
Social Engineering Social engineering is a psychological manipulation technique used by attackers to deceive individuals into revealing sensitive information or performing certain actions, often exploiting trust or human vulnerabilities.
SSH (Secure Shell) SSH is a secure network protocol that allows secure remote access and secure file transfers between computers, providing encrypted communication and authentication mechanisms.
Thread A thread is a sequence of instructions within a program that can be executed independently, allowing for concurrent execution of multiple tasks or processes within a single program.
UX (User Experience) UX encompasses the overall experience and satisfaction that users have when interacting with a product or system, considering aspects such as usability, accessibility, and design aesthetics.
VPN (Virtual Private Network) A VPN is a secure and encrypted connection that allows users to access a private network or browse the internet through a remote server, protecting their privacy and enhancing security.
WYSIWYG WYSIWYG stands for “What You See Is What You Get,” referring to a visual editor or interface that allows users to see the final output or layout of content while editing, without needing to understand underlying code.
Zero-day Exploit A zero-day exploit refers to a vulnerability or software flaw that is unknown to the software vendor or developers, leaving no time for patching or fixing before it is exploited by attackers.
Agile Agile is an iterative and collaborative approach to software development, emphasizing flexibility, adaptability, and continuous improvement throughout the development process.
API Documentation API documentation is a set of instructions, reference materials, and examples that describe how to use and interact with an API, enabling developers to understand its functionalities and integrate it into their applications.
Backend as a Service (BaaS) BaaS is a cloud computing service model that provides backend infrastructure, such as data storage, user management, and server-side logic, allowing developers to focus on frontend development and easily integrate backend functionalities.
BYOD (Bring Your Own Device) A botnet is a network of compromised computers or devices controlled by a single attacker, typically used for malicious activities such as distributing spam emails, launching DDoS attacks, or stealing sensitive information.
Chatbot A chatbot is a computer program that simulates human conversation through text or voice interactions, often used for customer support, information retrieval, or task automation in messaging platforms or websites.
CLI (Command Line Interface) CLI is a text-based interface that allows users to interact with a computer or software through commands typed into a terminal or command prompt, providing direct control and efficient management of system resources.
Containerization Containerization is a virtualization technique that enables the deployment and running of applications within isolated environments called containers, providing consistent and scalable software delivery across different computing environments.
Cross-platform Cross-platform refers to software or applications that can run on multiple operating systems or platforms with minimal modifications, increasing accessibility and reducing development efforts for different target environments.
Data Center A data center is a physical facility that houses computer systems, servers, networking equipment, and storage systems, providing centralized computing resources and data storage for organizations.
DevOps DevOps is a collaborative approach that combines software development (Dev) and IT operations (Ops) to streamline and automate the software delivery process, promoting faster releases, improved quality, and closer collaboration between teams.
DDoS (Distributed Denial of Service) A DDoS attack is a malicious attempt to disrupt the normal functioning of a network, service, or website by overwhelming it with a flood of traffic from multiple compromised devices or systems, causing temporary or prolonged service unavailability.
Docker Docker is an open-source platform that allows developers to automate the deployment and management of applications within containers, making it easier to build, package, and distribute software across different computing environments.
FPGA (Field-Programmable Gate Array) An FPGA is a programmable integrated circuit that can be customized and reconfigured to perform specific tasks or functions, making it highly flexible and suitable for hardware acceleration or prototyping.
Framework A framework is a pre-established software structure or set of libraries that provides a foundation for developers to build applications, offering reusable components, predefined functionalities, and development conventions for a specific domain or technology.
Git Git is a distributed version control system that allows multiple developers to collaborate on a project, tracking changes, managing source code revisions, and facilitating efficient code merging and branching.
GraphQL GraphQL is a query language and runtime for APIs, providing a flexible and efficient way to request and manipulate data, enabling clients to specify the exact data requirements and reducing over-fetching or under-fetching of data.
GUI (Graphical User Interface) A GUI is a visual interface that allows users to interact with software applications through graphical elements, such as windows, icons, menus, and buttons, providing a user-friendly and intuitive way to navigate and control the application.
Hacking Hacking refers to the practice of exploring and manipulating computer systems or networks, often with advanced technical skills, sometimes for malicious purposes but also for ethical security testing or finding vulnerabilities.
Load Balancing Load balancing is the process of distributing network or application traffic across multiple servers or resources to optimize performance, improve scalability, and ensure efficient resource utilization.
Machine Learning Machine learning is an AI technique that allows computers to learn and improve from experience without being explicitly programmed, enabling them to make predictions or take actions based on data.
Microservices Microservices is an architectural approach where applications are built as a collection of small, loosely coupled, and independently deployable services, promoting scalability, maintainability, and the ability to work in parallel on different components.
NAT (Network Address Translation) NAT is a networking technique that allows multiple devices within a local network to share a single public IP address, enabling communication with external networks and enhancing network security by hiding internal IP addresses.
OAuth OAuth is an open standard protocol for secure authorization and authentication, enabling users to grant limited access to their resources or data to third-party applications or services, without sharing their login credentials.
ORM (Object-Relational Mapping) ORM is a programming technique that maps database objects to the object-oriented model used in application code, simplifying data access and manipulation by providing a higher-level interface between the application and the database.
PCI DSS (Payment Card Industry Data Security Standard) PCI DSS is a set of security standards established by the payment card industry to ensure the secure processing, storage, and transmission of cardholder data, reducing the risk of credit card fraud and improving data security for merchants and payment processors.
Penetration Testing Penetration testing, also known as ethical hacking or pen testing, is a proactive security assessment method that simulates real-world attacks on computer systems or networks to identify vulnerabilities and strengthen the overall security posture.
Pixel A pixel is the smallest unit of a digital image or display, representing a single point of color, brightness, or information on a screen, usually measured in terms of its width and height.
RAID (Redundant Array of Independent Disks) RAID is a data storage technology that combines multiple physical disk drives into a single logical unit, providing improved performance, fault tolerance, or increased storage capacity.
Responsive Design Responsive design is an approach to web design that ensures websites adapt and display optimally across various devices and screen sizes, providing an optimal user experience.
RESTful API A RESTful API (Representational State Transfer) is an architectural style for designing networked applications that utilize HTTP methods and resources to create, read, update, and delete data, providing interoperability between different systems.
Server A server is a computer or system that provides resources or services to other computers or clients, such as hosting websites or managing network traffic.
Single Sign-On (SSO) Single Sign-On is an authentication mechanism that allows users to access multiple applications or systems using a single set of credentials, reducing the need for multiple logins and enhancing user convenience.
SMTP (Simple Mail Transfer Protocol) SMTP is an internet standard protocol for email transmission, defining the rules and procedures for sending emails between servers and clients, ensuring reliable and secure email delivery across different systems.
SSD (Solid State Drive) An SSD is a type of storage device that uses flash memory to store data persistently, offering faster data access, improved reliability, and reduced power consumption compared to traditional hard disk drives.
UI (User Interface) UI refers to the visual elements and interactive components that users interact with when using a software application or website, encompassing the layout, design, and presentation of the user-facing components.
Virtual Machine (VM) A virtual machine (VM) is a software emulation of a computer system that enables multiple operating systems or software applications to run on a single physical machine simultaneously.
VPN (Virtual Private Network) A VPN is a secure and encrypted connection that allows users to access a private network or browse the internet through a remote server, protecting their privacy and enhancing security.
Web Scraping Web scraping is the automated extraction of data from websites, usually performed using bots or software tools, enabling the retrieval of structured data for various purposes, such as research, analysis, or content aggregation.
XSS (Cross-Site Scripting) XSS is a type of web vulnerability where malicious code is injected into web pages or applications, allowing attackers to execute scripts on a victim’s browser and potentially steal sensitive information or perform unauthorized actions.
By Ephatech

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