LIST OF TERMS INCLUDED IN THE NNSC HYPERCARD TOUR OF THE INTERNET (without definitions) 1822 ACK Acknowledgement ANSI AppleTalk ARP ARPANET Authority Zone Autonomous Confederation Autonomous System Backbone Bandwidth Baseband Baud BBN Bolt Beranek and Newman Inc. BITNET Broadband Broadcast BSD Catenet CCITT Checksum Client Connection COS Corporation for Open Systems CREN Corporation for Research and Educational Networking CSMA/CD Carrier Sense Multiple Access with Collision Detection CSNET DARPA Defense Advanced Research Projects Agency Datagram DDN Defense Data Network EARN EGP Exterior Gateway Protocol Electronic Mail Ethernet email FDDI Fiber Distribution Data Interface Field File Server Fragment Frame FTAM File Transfer, Access, and Management FTP File Transfer Protocol Gateway GOSIP Government OSI Profile Header HELLO Host ICMP Internet Control Message Protocol IEEE 802 IEN Internet Engineering Notes IMP Interface Message Processor Internet Address Internet ISDN Integrated Services Digital Network ISO International Standards Organization Layer LAN Local Area Network LocalTalk Mail Bridge Mail Gateway MAN MAP Message MILNET MILitary Network MTU NBS National Bureau of Standards. Network Network Address NFS Network File System NIST National Institute for Standards NIC Network Information Center NOC Network Operations Center NNSC NSF Network Service Center NSF National Science Foundation NSFNET National Science Foundation Network NTP Network Time Protocol ODA Office Document Architecture OSI Open Systems Interconnect OSI Reference Model Packet Packet Switch PAD PING Protocol PSN Packet Switch Node RDP Reliable Datagram Protocol RFC-733 RFC-822 RFC Request for Comment RIP Routing Information Protocol Route rcp Remote copy rlogin Remote login Server SMTP Simple Mail Transfer Protocol SNA Systems Network Architecture SNMP Source Address SPAG Switch T1 TCP/IP TELENET Telnet TOP Technical/Office Protocol TP-4/IP TTL Time To Live UDP User Datagram Protocol UUCP UNIX-to-UNIX-CoPy X.25 X.400 X.500 XNS Xerox Network Services