Internet technologies

This WhatIs.com glossary contains terms related to Internet technologies, including definitions about port numbers, standards and protocols and words and phrases about how the Internet works.

UUID (Universal Unique Identifier) - A UUID (Universal Unique Identifier) is a 128-bit value used to uniquely identify an object or entity on the internet.
vanity URL (vanity uniform resource locator) - A vanity URL (vanity uniform resource locator) is a simplified version of a URL that users enter into their browsers in place of the original URL.
vector graphics - Vector graphics are computer images created through a sequence of commands or mathematical statements that place lines and shapes in a two-dimensional or three-dimensional space.
Vimeo - Vimeo is a U.
virtual asset - A virtual asset is a digital representation of an item that has value in a specific environment.
virtual classroom - A virtual classroom is an online learning environment.
virtual reality sickness (VR motion sickness) - Virtual reality sickness (VR motion sickness) is the physical discomfort that occurs when an end user's brain receives conflicting signals about self-movement in a digital environment.
voice SEO - Voice SEO is the optimization of keywords and keyword phrases for searches through voice assistants.
VoIP phone - A VoIP phone is a hardware- or software-based telephone designed to use voice over Internet Protocol (VoIP) technology to send and receive phone calls over an IP network.
von Neumann bottleneck - The von Neumann bottleneck is a limitation on throughput caused by the standard personal computer architecture.
W3C (World Wide Web Consortium) - The W3C (World Wide Web Consortium) is an international organization that creates standards for the World Wide Web.
WAN (wide area network) - A wide area network (WAN) is a geographically distributed private telecommunications network that interconnects multiple local area networks (LANs).
Wayback Machine - The Internet Archive's Wayback Machine is a digital archive of information on the internet.
Web 2.0 - Web 2.0 are websites and applications that make use of user-generated content for end users.
web analytics - Web analytics is the process of analyzing the behavior of visitors to a website by tracking, reviewing and reporting the data generated by their use of the site and its components, such as its webpages, images and videos.
web development framework (WDF) - A web development framework is a set of resources and tools for software developers to build and manage web applications, web services and websites, as well as to develop application programming interfaces (APIs).
web server - A web server is software and hardware that uses HTTP (Hypertext Transfer Protocol) and other protocols to respond to client requests made over the World Wide Web.
web services - Web services are a type of internet software that use standardized messaging protocols and are made available from an application service provider's web server for a client or other web-based programs to use.
web stack - A web stack is the collection of software used for web development that incorporates, at a minimum, an operating system (OS), a programming language, database software and a web server.
weblog - A blog, short for weblog, is a frequently updated web page used for personal commentary or business content.
webOS - WebOS is an LG-owned, Linux-based operating system for smart devices, particularly smart TVs.
WebRTC (Web Real-Time Communications) - WebRTC (Web Real-Time Communications) is an open source project that enables real-time voice, text and video communications capabilities between web browsers and devices.
What are Internet data caps and why do providers use them? - A data cap, also known as a bandwidth cap, is a limit that service providers impose on the amount of data a user account can transfer at a specified level of throughput over a given time period, for a specified fee.
What are systems of engagement? - Systems of engagement are decentralized IT components that incorporate technologies such as social media and the cloud to encourage and enable peer interaction.
What are vector embeddings? - Vector embeddings are numerical representations that capture the relationships and meaning of words, phrases and other data types.
What is a Consensus Algorithm? - A consensus algorithm is a process in computer science used to achieve agreement on a single data value among distributed processes or systems.
What is a content management system (CMS)? - A content management system (CMS) is a software application that lets users create, edit, collaborate on, publish and store digital content.
What is a Server? - A server is a computer program or device that provides a service to another computer program and its user, also known as the client.
What is an operating system (OS)? - An operating system (OS) is the program that, after being initially loaded into the computer by a boot program, manages all of the other application programs in a computer.
What is cloud computing? Types, examples and benefits - Cloud computing is a general term for the delivery of hosted computing services and IT resources over the internet with pay-as-you-go pricing.
What is hybrid cloud? The ultimate guide - A hybrid cloud is a cloud computing environment that uses a mix of on-premises, private cloud and third-party public cloud services with orchestration among these platforms.
What is network-attached storage (NAS)? A complete guide - Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity.
What is REpresentational State Transfer (REST) - REST (REpresentational State Transfer) is an architectural style for developing web services and systems that can easily communicate with each other.
What is SSH (Secure Shell) and How Does It Work? - SSH (Secure Shell or Secure Socket Shell) is a network protocol that gives users -- particularly systems administrators -- a secure way to access a computer over an unsecured network.
What is the blue screen of death (BSOD)? - The blue screen of death (BSOD) -- also known as a stop error screen, blue screen error, fatal error or bugcheck -- is a critical error screen that can be displayed by Microsoft Windows operating systems (OSes).
What is the dark web (darknet)? - The dark web is an encrypted portion of the internet not visible to the general public via a traditional search engine such as Google.
What is unified endpoint management (UEM)? A complete guide - Unified endpoint management (UEM) is an approach to securing and controlling desktop computers, laptops, smartphones and tablets in a connected, cohesive manner from a single console.
white hat link building - White hat link building is a search engine optimization (SEO) technique for increasing the number of high-quality backlinks to a webpage.
whitelist (allowlist) - A whitelist (allowlist) is a cybersecurity strategy that approves a list of email addresses, IP addresses, domain names or applications, while denying all others.
wiki - A wiki is a web-based collaborative platform that enables users to store, create and modify content in an organized manner.
Windows Imaging Format (WIM) - Windows Imaging Format (WIM) is used for the creation and distribution of disk image files.
Windows Management Instrumentation (WMI) - Windows Management Instrumentation (WMI) is a set of specifications from Microsoft for consolidating the management of devices and applications in a network from Windows computing systems.
Wired Equivalent Privacy (WEP) - Wired Equivalent Privacy (WEP) is a security protocol, specified in the IEEE Wireless Fidelity (Wi-Fi) standard, 802.
wireless broadband (WiBB) - Wireless broadband (WiBB) is high-speed internet and data service delivered through a wireless local area network (WLAN) or wireless wide area network (WWAN).
Wireless Transport Layer Security (WTLS) - Wireless Transport Layer Security (WTLS) is a security level for the Wireless Application Protocol (WAP), specifically for the applications that use WAP.
WordPress - WordPress is free, open source publishing software that can be installed locally on a web server and viewed on a proprietary web site or hosted in the cloud and viewed on the WordPress web site.
World Wide Web (WWW) - The World Wide Web -- also known as the web, WWW or W3 -- refers to all the public websites or pages that users can access on their local computers and other devices through the internet.
WSTx (Web Services Transactions) - WSTx (Web Services Transaction) is a set of XML markup specifications designed to permit the use of open, standard protocols for secure, reliable transactions across the Web.
XACML (Extensible Access Control Markup Language) - XACML (Extensible Access Control Markup Language) is an attribute-based access control policy language (ABAC) or XML-based language, designed to express security policies and access requests to information.
XML (Extensible Markup Language) - XML (Extensible Markup Language) is used to describe data.
XML Schema Definition (XSD) - XML Schema Definition or XSD is a recommendation by the World Wide Web Consortium (W3C) to describe and validate the structure and content of an XML document.
XSL (Extensible Stylesheet Language) - XSL (Extensible Stylesheet Language) is a family of standards that specifies how to define Extensible Markup Language (XML) document transformation and presentation.
Yahoo - Yahoo, or Yahoo.
yak shaving - Yak shaving is programming lingo for the seemingly endless series of small tasks that have to be completed before the next step in a project can move forward.
Yammer - Yammer is a private microblogging and collaboration platform for enterprise social networking.