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Internet Group Management Protocol
The Internet Group Management Protocol (IGMP) is the protocol IPv4 hosts and routers use to report multicast group memberships, letting routers decide which networks receive multicast packets.
Internet in India
The Internet in India is the national system of internet access and regulation, with 969 million subscribers in March 2025, cheap mobile data, and frequent government shutdowns.
Internet in North Korea
Internet access in North Korea is restricted to a small elite, while most users are limited to Kwangmyong, a state-run intranet isolated from the global internet.
Internet Information Services
Internet Information Services, also known as Microsoft IIS, is a web server produced by Microsoft that runs on Windows and hosts websites, services, and applications over HTTP, HTTPS, and FTP.
Internet Key Exchange
Internet Key Exchange (IKE) is the protocol used to set up and maintain IPsec security associations, authenticating endpoints and negotiating keys; its current version, IKEv2, is specified in RFC 7296.
Internet Message Access Protocol
The Internet Message Access Protocol, or IMAP, is an application-layer protocol that lets an email client access and manage mail stored on a server, so multiple devices see the same mailbox.
Internet of things
The Internet of things (IoT) is the network of physical objects, from thermostats and fitness monitors to connected cars, fitted with sensors and software to connect and exchange data.
Internet privacy
Internet privacy, also called web privacy, is the ability to control how personal data is collected, shared, and used online, shaped by laws like the GDPR.
Internet Protocol
The Internet Protocol (IP) is the principal network-layer protocol of the Internet, delivering datagrams from source to destination across interconnected packet-switched networks in IPv4 and IPv6 versions.
Internet protocol suite
The Internet protocol suite, commonly called TCP/IP, is the layered set of communication protocols that packages, addresses, routes, and delivers all data on the Internet.
Internet Protocol television
Internet Protocol television (IPTV) is the delivery of television and other multimedia services over managed IP networks, typically bundled with internet and voice as a triple-play offering.
Internet Research Task Force
The Internet Research Task Force (IRTF) is an Internet research organization created in 1989 that promotes long-term research on Internet protocols, applications, architecture, and technology.
Internet safety
Internet safety is the practice of protecting people from harm online across four risk categories, the 4 Cs: content, contact, conduct, and commerce, with defenses like multi-factor authentication.
Internet security
Internet security, also called web security, is the set of practices and technologies that protect Internet data and systems from unauthorized access, modification, and disruption.
Internet service provider
An internet service provider, or ISP, is a company that owns or resells the facilities delivering internet access to homes and businesses over DSL, cable, fiber, wireless, or satellite.
Internet Society
The Internet Society (ISOC) is an American nonprofit, founded in 1992 by Vint Cerf, Bob Kahn, and other internet pioneers, that promotes the Internet's open development and standards.
Internet Standard
An Internet Standard is a stable, well-understood protocol or convention adopted through the IETF standards process, requiring multiple independent interoperable implementations and defined by RFC 2026.
Internet Stream Protocol
The Internet Stream Protocol (ST) is an experimental connection-oriented protocol, first specified in 1979, that reserved network resources for real-time audio and video; its second version, ST2, used IP version number 5.
Internet traffic
Internet traffic, also called online traffic, is the flow of data across the Internet, carried as packets delivered through routers and switches, often protected by TLS encryption.
Internet.org
Internet.org is a partnership founded by Facebook in 2013 to bring affordable internet access worldwide, best known for its Free Basics program, which was banned in India in 2016.
Internet2
Internet2, managed through the University Corporation for Advanced Internet Development (UCAID), is a US nonprofit consortium founded in 1996 that runs a nationwide high-speed research network connecting universities and international research networks.
Internetwork Packet Exchange
Internetwork Packet Exchange (IPX) is a Novell network-layer datagram protocol that addressed and routed packets on NetWare networks from the 1980s until NetWare 5 adopted pure TCP/IP in 1998.
Internetworking
Internetworking, also called catenet, is the practice of connecting distinct packet-switched networks so they operate as one system using TCP/IP, developed by DARPA's 1973 Internetting project.
InternLM (model family)
InternLM is a family of open-weight large language models developed by Shanghai AI Laboratory with SenseTime and several universities, first released in 2023 and continued through the InternLM2, InternLM2.5, and InternLM3 generations.
InternVideo
InternVideo is a family of open video foundation models for video understanding, developed by the General Vision Group at Shanghai AI Laboratory since December 2022.
InternVL
InternVL is a family of open-weight vision-language models, processing images and text together, developed by OpenGVLab at Shanghai AI Laboratory and first released in December 2023.
Interoperability
Interoperability, abbreviated I14y, is the ability of two or more systems or organizations to exchange information and use what has been exchanged, usually achieved by implementing shared communication or data-format standards.
Interpenetrated MOFs for xenon/krypton separation
Interpenetrated MOFs for xenon/krypton separation are metal–organic frameworks in which two or more identical networks thread through one another, shrinking pores so xenon adsorbs preferentially over krypton.
Interpenetrating polymer network
An interpenetrating polymer network (IPN) is a material of two or more cross-linked polymer networks, physically entangled but not covalently bonded, a term coined by J. R. Millar in 1960.
Interphase power controller
The interphase power controller (IPC) is a passive FACTS device that controls power flow between AC transmission networks, introduced in 1994 at CITEQ in Varennes, Quebec.