ARPANET Full Form - Advanced Research Projects Agency NET Last Updated : 12 Jul, 2025 Comments Improve Suggest changes 19 Likes Like Report ARPANET stands for Advanced Research Projects Agency NET. ARPANET was the first network that consisted of distributed control. It was the first to implement TCP/IP protocols. It was basically the beginning of the Internet with the use of these technologies. It was designed with a basic idea in mind that was to communicate with scientific users among an institute or university. History of ARPANETARPANET was introduced in the year 1969 by the Advanced Research Projects Agency (ARPA) of the US Department of Defense. It was established using a bunch of PCs at various colleges and sharing of information and messages was done. It was for playing as long separation diversions and individuals were asked to share their perspectives. In the year 1980, ARPANET was handed over to a different military network, Defense Data Network. Characteristics of ARPANET It is basically a type of WAN. It used the concept of a packet-switching network. It used Interface Message Processors(IMPs) for sub-netting. ARPANETs software was split into two parts- a host and a subnet. Advantages of ARPANET ARPANET was designed to serve even in a Nuclear Attack. It was used for collaborations through E-mails. It created an advancement in the transfer of important files and data for defense. Limitations of ARPANET Increased number of LAN connections resulted in difficulty handling. It was unable to cope-up with advancement in technology. Create Quiz Comment C Code_Mech Follow 19 Improve C Code_Mech Follow 19 Improve Article Tags : Computer Networks Full Form Explore Computer Network BasicsBasics of Computer Networking4 min readTypes of Computer Networks6 min readIntroduction to Internet5 min readNetwork Devices3 min readWhat is OSI Model? - Layers of OSI Model11 min readTCP/IP Model6 min readDifference Between OSI Model and TCP/IP Model2 min readPhysical LayerPhysical Layer in OSI Model3 min readTypes of Network Topology9 min readTransmission Modes in Computer Networks (Simplex, Half-Duplex and Full-Duplex)3 min readTransmission Media in Computer Networks7 min readData Link LayerData Link Layer in OSI Model4 min readSwitching | Computer Networks2 min readVirtual LAN (VLAN)3 min readFraming in Data Link Layer3 min readError Control in Data Link Layer3 min readFlow Control4 min readPiggybacking in Computer Networks2 min readNetwork LayerNetwork Layer in OSI Model3 min readIntroduction of Classful IP Addressing7 min readClassless Addressing in IP Addressing7 min readWhat is an IP Address?11 min readIPv4 Datagram Header4 min readDifference Between IPv4 and IPv63 min readPublic and Private IP addresses4 min readIntroduction To Subnetting5 min readWhat is Routing?10 min readNetwork Layer Protocols9 min readTransport LayerTransport Layer in OSI Model4 min readTransport Layer Protocols9 min readTransmission Control Protocol - TCP4 min readUser Datagram Protocol - UDP3 min readSession Layer & Presentation LayerSession Layer in OSI model2 min readPresentation Layer in OSI model2 min readSecure Socket Layer (SSL)4 min readPoint-to-Point Tunneling Protocol - PPTP2 min readMultipurpose Internet Mail Extension (MIME) Protocol3 min readApplication LayerApplication Layer in OSI Model4 min readClient-Server Model3 min readWorld Wide Web (WWW)6 min readIntroduction to Electronic Mail4 min readWhat is a Content Distribution Network and how does it work?4 min readProtocols in Application Layer4 min readAdvanced TopicsWhat is Network Security?7 min readQuality of Service and Multimedia5 min readAuthentication in Computer Network3 min readEncryption, Its Algorithms And Its Future6 min readIntroduction of Firewall in Computer Network3 min readMAC Filtering in Computer Network3 min readWi-Fi Standards Explained2 min readWhat is Bluetooth?6 min readGenerations of wireless communication2 min readCloud Networking4 min readPracticeTop 50 Plus Networking Interview Questions and Answers15+ min readTop 50 TCP/IP Interview Questions and Answers 202515+ min readNetwork Fundamentals Interview Questions - Computer Networks15+ min readLast Minute Notes for Computer Networks14 min readComputer Network - Cheat Sheet15+ min read Like