1. Introduction to Humanities Computing Spring 1999 Lecture Five

2. Bandwidth Vocabulary s P hysical media copper wire (POTS), coaxial cable, wireless, optical fiber s P rotocols TCP/IP, ATM s N etwork connection modem, Ethernet, T1, ISDN

3. Ways to connect s Direct connection s Gateway Service s SLIP (serial line interface protocol) or PPP (point to point protocol) s Dial up terminal connection terminal emulation - applications reside on the host

4. Internet evolution - some dates s Ethernet - Bob Metcalfe - 1973 s ARPANET splits off MILNET - 1983 113 nodes, 45 go to ARPANET s TCP/IP - 1978, ARPANET switches in 1983 s ARPANET replaced by NSF backbone - 1985 s Domain Name System - 1984 s 1996 - First Virtual Cookie Sent Over Net

5. Internet : more than the WWW s FTP sites Retrieve computer programs, files (images, text, sound, etc.) from archive sites Archie permits you to search s Gopher Veronica permits you to search

6. Internet s USENET Network of Newsgroups Newsreader software muss%trn s Discussion Lists Multiple recipients of e-mail Automatic list manager software e.g. majordomo, listserv, mailserv Subscription-based services

7. Discussion lists You can search for LISTSERV lists through the "CataList" interface at http://www.lsoft.com/lists/listref.html

8. Keywords for further exploration s Firewall s Newsgroups s Avatar How is an avatar different from an alias? s FAQs s MIME s Host/client

9. Pause to consider... … Digital Decay... What is it?Does it matter? http://www.colleges.org/ecite.html

10. End Our emphasis so far on computer-mediated communication has been on contemporary users creating and exchanging programs and files... …but we can build digital archives from materials of the past