1 / 26

Course Overview & Exploring the Internet

Course Overview & Exploring the Internet. Week 1 LBSC 690 Information Technology. Agenda. Why study information technology? Course description and syllabus Seven uses of the Internet Computing at UMCP. Why Study Information Technology. Doing a better job in your profession Help clients

Download Presentation

Course Overview & Exploring the Internet

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Course Overview &Exploring the Internet Week 1 LBSC 690 Information Technology

  2. Agenda • Why study information technology? • Course description and syllabus • Seven uses of the Internet • Computing at UMCP

  3. Why Study Information Technology • Doing a better job in your profession Help clients Develop new services • Affecting the social impact of these technologies education and the web digital libraries ecommerce and the web • Fun

  4. Course Goals • Learn to use common software tools • Solve practical problems • Evaluate the role of information technology • Develop a personal plan for further study • Understand computers and networks (building a better “mental model” of how information technology works). (go browse course web pages)

  5. Instructional Approach • Readings • Provide background and detail • Class sessions • Provide conceptual structure • Electronic online provided in class • Slides and videotapes available • Homework, lab sessions, project • Provide hands-on experience

  6. Course Organization • Master the tools relatively early • Internet, word processors, spreadsheets, databases, programming, multimedia • 2 readings and one homework each class session • Apply the tools towards the end • Group work, library automation, educational computing, social issues, digital libraries • 2 readings each week and the term project

  7. Some Other Good Things to Do • Consider aITs courses for background • Work ahead • Ask questions about readings • Give us feedback • Think about a project soon • Ask for accelerated work if you can handle it (we’re looking to GRAs, web designers, researchers, etc.)

  8. Course Materials • Textbook • Oakman, The Computer Triangle2nd edition • Supplemental readings • Course packet available from IDSC • Daily access to a networked computer! • A few 3.5 inch floppy disks

  9. Fall 96 LBSC 690 Grades

  10. Observations on Grading • Exam scores are very important • The final is worth up to 10 homeworks • Moral: Use the homework to learn the material • Little things can make a B into an A • less than 1 point typically separates B+ and A-

  11. The Fine Print • Group work is encouraged on homework • But you must personally write what you turn in • Deadlines are firm and sharp • Allowances for individual circumstances are included in the grading computation • Academic integrity is a serious matter • No group work during the exams! • Don’t discuss exam until the completion deadline is past

  12. Breaks • 10 minute break after the first hour • 5 minute break after the second hour • No sodas or food in class the teaching theater

  13. Seven Uses of the Internet • Telnet • Email • Finger • Web (HTML/HTTP) • File Transfer Program (FTP), downloading • Newsgroups • Talk, IRC

  14. Describing Internet Applications • Who participates? • Person-person, person-machine, machine-machine • How many participants? (one other, many) • Directionality? (one-way, two-way) • Authentication? (authenticated, unauthenticated) • When? (synchronous, asynchronous)

  15. Networking Concepts • Understand the basic service as much as possible • Networked vs. Stand-alone • Clients and servers • UNIX versus PC/MAC • (more in 2nd class session)

  16. Telnet • Two way, computer-person, authenticated • Gives you a login on another computer • Use telnet to read your email from wam.umd.edu • Terminal emulation (VT-100) protocol allows only text • The pine email program is designed for VT-100 • X Windows extension adds graphics • WAM X-terminals available in CSS 4352 • Usage: from “run window”

  17. Electronic Mail (email) • Person-person, one-one, asynchronous • Pine on WAM is easy to use • Eurdora is ok if you always use the same computer • Mailing lists provide one-many capability • 690 mailing list is lbsc690@majordomo.umd.edu • Anyone can send to that list

  18. Email Addresses • userid@machine+domain • (e.g., oard@glue.umd.edu) • Machine names are like postal addresses • Most general part is at the end (.edu, .com, …) • Most specific part is at the beginning (glue, …) • Your userid (login name) is widely known. Protect your password

  19. Finger (find user name and activity from user id) • Find a name given an email address • finger rba@glue.umd.edu • other “white pages” services

  20. Web Pages • One way, computer-person, unauthenticated • Uniform Resource Locator (URL) • Protocol http: (HyperText Transfer Protocol) • Machine/Domain //www.clis.umd.edu • Port (implicit) port 80 • Path /academics/courses/fall99/690/ • File (implicit) index.html

  21. Finding Web Pages • Bookmarks • Useful if you have been there before • Access by category • (e.g., http://www.yahoo.com) • Limited to things processed by hand • Access by content - search engines • (e.g., http://www.altavista.com) • Broad coverage, but lots more trash • No really good search engines yet

  22. File Transfer Program (FTP) • Two way, computer-computer, authenticated • Used to move files between machines • Better than carrying a floppy disk around • Use FTP to send class notes from here to home • ftp raven.umd.edu • Unauthenticated version • Userid “anonymous” provides public access • Web browsers provide one-way anonymous FTP • Usage: Command line

  23. Net (USENET) News • Person-person, many-many, asynchronous • Similar to a large set of mailing lists • Hierarchical organization • Most general appears first (comp., soc., …) • Most specific appears last (rec.aviation.military) • Organized by site rather than by individual • No need to “sign up” for a newsgroup • Reading news - • www.deja.com • pine (wam mail reader)

  24. Talk/IRC • Synchronous, authenticated • Talk - connect to one other person • IRC - connect to many other people

  25. Computing at UCMP • Open Labs (IBM, Mac, Unix) • HBK 2101 (open lab), HBK 2108 (CLIS only) • PG2 and HBK Basement: 24 hr WAM labs • Need an aITs “pay for print” account • Dial-in access (Unix only) • College Park (301)209-0700 (3hr)/864-2087(15min) • Baltimore (410)962-88865(3hr)/962-8867(15min) • WAM userid and password required

  26. Homework • Preliminaries (ungraded) • WAM account, print account, email forwarding • Email (use “pine” which is the wam mail interface) • Listserve/Majordomo • World-Wide Web • USENET News • FTP

More Related