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The Information Superhighway

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Presentation on theme: "The Information Superhighway"— Presentation transcript:

1 The Information Superhighway
© D. J. Foreman

2 The Information Superhighway
What is it? Why would I want to use it? How do I get to it? What is an Internet address? How do I navigate? What terms do I need to know? What features exist? © 2004 D. J. Foreman

3 NO OWNER!!!!! NO CONTROL!!!!! What is it?
A collection of interconnected networks A collection of databases Organized on a ‘handshake’ basis NO OWNER!!!!! NO CONTROL!!!!! © 2004 D. J. Foreman

4 Why would I want to use it?
Electronic mail Extend beyond local ‘paper’ library Access most recent data Interactive data repositories Speed - access & search Computer-accessible data © 2004 D. J. Foreman

5 How do I get to it? Two methods (your choice): Use “BUICK”
Direct connection in all dorms Dial-up connection from any telephone Hi-speed line (cable, DSL) Use “BUICK” Bing. Univ. Internet Connection Kit Available from the help-desk – FREE!! © 2004 D. J. Foreman

6 What is e-mail? An electronic message service
Available to anyone with a PC “Instantaneous” delivery “Free” Requires: ‘ account’ "client" software (Eudora, Smail, Outlook) © 2004 D. J. Foreman

7 Email - 2 Send any kind of ‘data’: To individuals or lists text
graphics drawings, pictures audio/video clips To individuals or lists headers addressees © 2004 D. J. Foreman

8 Email - 3 a digression on addressing
Internet Protocol (IP) address formats address of a machine dotted decimal: domain: binghamton.edu depends on network connection desires of system owner abilities/desires of name server owner "protocol" - a set of rules for communicating © 2004 D. J. Foreman

9 EMAIL - 4 concepts E-mail addresses: name@domain headers nicknames
Note TWO parts: a user at a machine or headers nicknames signature line attachments replies/forwards - caution © 2004 D. J. Foreman

10 What about the World Wide Web???
Wait a minute!!! What about the World Wide Web??? © D. J. Foreman

11 WWW A set of computer systems containing specially formatted files
HyperText Markup Language (HTML) running a Web Server program (eg. Apache) accessible with a ‘browser’ Netscape, Firefox Internet Explorer Opera Mozilla © 2004 D. J. Foreman

12 Internet Domains - 1 COM commercial ORG organizations
NET network ‘connections’ EDU educational institutions GOV government sites MIL military sites TRAVEL © 2004 D. J. Foreman

13 Internet Domains – 2 recently approved
AERO aviation industry NAME personal BIZ business or firm INFO informational sites MUSEUM museums COOP business co-ops PRO DR's, lawyers, accountants © 2004 D. J. Foreman

14 Proposed Internet Domains
.agent .arts .auction .chat .church .club .family .free .game .gmbh .golf .hola .inc .kids .law .llc .llp .love .ltd .med .mp3 .school .scifi .shop .soc .sport .tech .travel .video .xxx © 2004 D. J. Foreman

15 Web Server Error Messages
415 SERVICE_UNAVAILABLE 500 INTERNAL_SERVER_ERROR 501 NOT_IMPLEMENTED 502 BAD_GATEWAY 503 SERVICE_UNAVAILABLE 506 VARIANT_ALSO_VARIES 400 BAD_REQUEST 401 UNAUTHORIZED 403 FORBIDDEN 404 NOT_FOUND 405 METHOD_NOT_ALLOWED 408 REQUEST_TIME_OUT 410 GONE 411 LENGTH_REQUIRED 412 PRECONDITION_FAILED 413 REQUEST_ENTITY_TOO_LARGE 414 REQUEST_URI_TOO_LARGE © 2004 D. J. Foreman

16 The Internet Getting Started
Click the desired program in the "programs list" Enter the DOS/UNIX command you want to use from a command prompt: netscape iexplore ftp/telnet Pine (on Solaris) © 2004 D. J. Foreman

17 What can I search for? Technical reports Research comments
ON-line discussions Graphics Raw data Organized data (complete databases) © 2004 D. J. Foreman

18 Some Retrieval Hints See hints in text
See other reference works for sites Keep a ‘logbook’ of ‘found’ sites © 2004 D. J. Foreman

19 Internet Portals Organized categories
Concept: directories, like a phone book No overall site structure "Some" have ‘search engines’ - let your fingers do the walking DEMO © 2004 D. J. Foreman

20 Searching in a Portal Search engines Some have their own
Some use Google or Yahoo engines Some use other search engines © 2004 D. J. Foreman

21 Accessing Remote Systems
© D. J. Foreman

22 Navigation Tools FTP - to get/put files from/to remote machines
Telnet - to do work on remote machines Many free and pro ($) client versions available for both Telnet and FTP © 2004 D. J. Foreman

23 FTP File Transfer Protocol Getting (downloading) Putting (uploading)
© 2004 D. J. Foreman

24 FTP -2 ftp <site name> example: ftp pc.ibm.com
login: anonymous password: <your SUNY address> example: ftp pc.ibm.com password A demo © 2004 D. J. Foreman

25 Telnet Access to do work Telnet <system name>
login: <your ID for the remote system> (sometimes, “guest” is allowed) password: <your pw for remote system> A demo © 2004 D. J. Foreman

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