| Internet history timeline
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Early research and development:
- 1960โ1962: J. C. R. Licklider networking ideas
- 1960โ1964: RAND networking concepts developed
- 1962โ1964: ARPA networking ideas
- 1965 (1965): NPL network concepts conceived
- 1966 (1966): Merit Network founded
- 1967 (1967): ARPANET planning begins
- 1967 (1967): Symposium on Operating Systems Principles
- 1969 (1969): NPL followed by the ARPANET carry their first packets
- 1970 (1970): Network Information Center (NIC)
- 1971 (1971): Tymnet switched-circuit network
- 1972 (1972): Merit Network's packet-switched network operational
- 1972 (1972): Internet Assigned Numbers Authority (IANA) established
- 1973 (1973): CYCLADES network demonstrated
- 1973 (1973): PARC Universal Packet development begins
- 1974 (1974): Transmission Control Program specification published
- 1975 (1975): Telenet commercial packet-switched network
- 1976 (1976): X.25 protocol approved and deployed on public data networks
- 1978 (1978): Minitel introduced
- 1979 (1979): Internet Activities Board (IAB)
- 1980 (1980): USENET news using UUCP
- 1980 (1980): Ethernet standard introduced
- 1981 (1981): BITNET established
Merging the networks and creating the Internet:
- 1981 (1981): Computer Science Network (CSNET)
- 1982 (1982): TCP/IP protocol suite formalized
- 1982 (1982): Simple Mail Transfer Protocol (SMTP)
- 1983 (1983): Domain Name System (DNS)
- 1983 (1983): MILNET split off from ARPANET
- 1984 (1984): OSI Reference Model released
- 1985 (1985): First .COM domain name registered
- 1986 (1986): NSFNET with 56 kbit/s links
- 1986 (1986): Internet Engineering Task Force (IETF)
- 1987 (1987): UUNET founded
- 1988 (1988): NSFNET upgraded to 1.5 Mbit/s (T1)
- 1988 (1988): Morris worm
- 1988 (1988): Complete Internet protocol suite
- 1989 (1989): Border Gateway Protocol (BGP)
- 1989 (1989): PSINet founded, allows commercial traffic
- 1989 (1989): Federal Internet Exchanges (FIX East|FIXes)
- 1990 (1990): GOSIP (without TCP/IP)
- 1990 (1990): ARPANET decommissioned
- 1990 (1990): Advanced Network and Services (ANS)
- 1990 (1990): UUNET/Alternet allows commercial traffic
- 1990 (1990): Archie search engine
- 1991 (1991): Wide area information server (WAIS)
- 1991 (1991): Gopher
- 1991 (1991): Commercial Internet eXchange (CIX)
- 1991 (1991): ANS CO+RE allows commercial traffic
- 1991 (1991): World Wide Web (WWW)
- 1992 (1992): NSFNET upgraded to 45 Mbit/s (T3)
- 1992 (1992): Internet Society (ISOC) established
- 1993 (1993): Classless Inter-Domain Routing (CIDR)
- 1993 (1993): InterNIC established
- 1993 (1993): AOL added USENET access
- 1993 (1993): Mosaic web browser released
- 1994 (1994): Full text web search engines
- 1994 (1994): North American Network Operators' Group (NANOG) established
Commercialization, privatization, broader access leads to the modern Internet:
- 1995 (1995): New Internet architecture with commercial ISPs connected at NAPs
- 1995 (1995): NSFNET decommissioned
- 1995 (1995): GOSIP updated to allow TCP/IP
- 1995 (1995): very high-speed Backbone Network Service (vBNS)
- 1995 (1995): IPv6 proposed
- 1996 (1996): AOL changes pricing model from hourly to monthly
- 1998 (1998): Internet Corporation for Assigned Names and Numbers (ICANN)
- 1999 (1999): IEEE 802.11b wireless networking
- 1999 (1999): Internet2/Abilene Network
- 1999 (1999): vBNS+ allows broader access
- 2000 (2000): Dot-com bubble bursts
- 2001 (2001): New top-level domain names activated
- 2001 (2001): Code Red I, Code Red II, and Nimda worms
- 2003 (2003): UN World Summit on the Information Society (WSIS) phase I
Examples of Internet services:
- 1989 (1989): AOL dial-up service provider, email, instant messaging, and web browser
- 1990 (1990): IMDb Internet movie database
- 1994 (1994): Yahoo! web directory
- 1995 (1995): Amazon online retailer
- 1995 (1995): eBay online auction and shopping
- 1995 (1995): Craigslist classified advertisements
- 1995 (1995): AltaVista search engine
- 1996 (1996): Outlook (formerly Hotmail) free web-based e-mail
- 1996 (1996): RankDex search engine
- 1997 (1997): Google Search
- 1997 (1997): Babel Fish automatic translation
- 1998 (1998): Yahoo Groups (formerly Yahoo! Clubs)
- 1998 (1998): PayPal Internet payment system
- 1998 (1998): Rotten Tomatoes review aggregator
- 1999 (1999): 2ch Anonymous textboard
- 1999 (1999): i-mode mobile internet service
- 1999 (1999): Napster peer-to-peer file sharing
- 2000 (2000): Baidu search engine
- 2001 (2001): 2chan Anonymous imageboard
- 2001 (2001): BitTorrent peer-to-peer file sharing
- 2001 (2001): Wikipedia, the free encyclopedia
- 2003 (2003): LinkedIn business networking
- 2003 (2003): Myspace social networking site
- 2003 (2003): Skype Internet voice calls
- 2003 (2003): iTunes Store
- 2003 (2003): 4chan Anonymous imageboard
- 2003 (2003): The Pirate Bay, torrent file host
- 2004 (2004): Facebook social networking site
- 2004 (2004): Podcast media file series
- 2004 (2004): Flickr image hosting
- 2005 (2005): YouTube video sharing
- 2005 (2005): Reddit link voting
- 2005 (2005): Google Earth virtual globe
- 2006 (2006): Twitter microblogging
- 2007 (2007): WikiLeaks anonymous news and information leaks
- 2007 (2007): Google Street View
- 2007 (2007): Kindle, e-reader and virtual bookshop
- 2008 (2008): Amazon Elastic Compute Cloud (EC2)
- 2008 (2008): Dropbox cloud-based file hosting
- 2008 (2008): Encyclopedia of Life, a collaborative encyclopedia intended to document all living species
- 2008 (2008): Spotify, a DRM-based music streaming service
- 2009 (2009): Bing search engine
- 2009 (2009): Google Docs, Web-based word processor, spreadsheet, presentation, form, and data storage service
- 2009 (2009): Kickstarter, a threshold pledge system
- 2009 (2009): Bitcoin, a digital currency
- 2010 (2010): Instagram, photo sharing and social networking
- 2011 (2011): Google+, social networking
- 2011 (2011): Snapchat, photo sharing
- 2012 (2012): Coursera, massive open online courses
- 2016 (2016): TikTok, video sharing and social networking
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The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet.
IP has the task of delivering packets from the source host to the destination host solely based on the IP addresses in the packet headers. For this purpose, IP defines packet structures that encapsulate the data to be delivered. It also defines addressing methods that are used to label the datagram with source and destination information.
IP was the connectionless datagram service in the original Transmission Control Program introduced by Vint Cerf and Bob Kahn in 1974, which was complemented by a connection-oriented service that became the basis for the Transmission Control Protocol (TCP). The Internet protocol suite is therefore often referred to as TCP/IP.
The first major version of IP, Internet Protocol version 4 (IPv4), is the dominant protocol of the Internet. Its successor is Internet Protocol version 6 (IPv6), which has been in increasing deployment on the public Internet since around 2006.[1]