1. Electronic Communications CPS120 Introduction to Computer Science Lecture 3

2. E-Mail E-mail is a fast, economical and convenient way to send messages to family, friends and colleaguesE-mail is a fast, economical and convenient way to send messages to family, friends and colleagues AddressesAddresses –Location of an individual mailbox on the Internet –User name, @ sign, domain – no spaces

3. Web-based E-mail Don’t need email clientDon’t need email client Popular Web-based E-mail ServicesPopular Web-based E-mail Services –www.hotmail.com www.hotmail.com –www.email.com www.email.com –mail.yahoo.com

4. Organization By type:By type:.com.com.edu.edu.gov.gov.mil.mil.net.net.org.org By country Australia -.au Canada -.ca Ireland -.ie Italy -.it Japan -.jp United Kingdom -.uk Other new codes have been defined

5. E-mail Features Address booksAddress books SignaturesSignatures Attachment of filesAttachment of files –Try to keep under 50Kb –Sometimes certain types of files are screened

6. E-Mail Issues EmoticonsEmoticons :-):-) AbbreviationsAbbreviations –LOL –TTFN NetiquetteNetiquette –Shouting –Flame

7. Viruses An e-mail virus is a program that can disrupt the normal operation of a computerAn e-mail virus is a program that can disrupt the normal operation of a computer –Display of unusual messages –Destroying files on the hard drive –Sending mail to people in your address book Opening files; sometimes only in previewOpening files; sometimes only in preview Virus programs available commerciallyVirus programs available commercially –Must be kept up-to-date

8. Newsgroups and Chat Chapter 12

9. Mail Groups A mailing list is a discussion group that uses e-mail to communicateA mailing list is a discussion group that uses e-mail to communicate –A list of mailing lists is at www.liszt.com www.liszt.com Moderated vs. un-moderated listsModerated vs. un-moderated lists Must subscribe to participateMust subscribe to participate Two addressesTwo addresses –Mailing list addresses –Administrative addresses

10. Newsgroups A discussion group that allows people with common interests to communicate with each otherA discussion group that allows people with common interests to communicate with each other USENET (User’s Network)USENET (User’s Network) –All the computes that distribute newsgroup information MessagesMessages –Individual posts ThreadsThreads –Messages and all replies

11. Addressing First word describes the main topicFirst word describes the main topic Each additional word is separated by a dot and serves to narrow the topicEach additional word is separated by a dot and serves to narrow the topic

12. Networking Aspects Newsreader – program that lets you read and post onlineNewsreader – program that lets you read and post online –Microsoft Outlook has a built-in reader –Gravity –Free Agent News serverNews server –A computer that stores newsgroup messages

13. Newsgroup Categories altbiz com p miscrecsciSoctalk General Interest Business Computers Miscellaneous Recreation & Hobbies Science Social (culture/politics) Debate alt.fans.actors biz.entrepreneurs comp.security.misc misc.books.technical rec.food.recipes sci.physics soc.history talk.politics.misc

14. Newsgroup Etiquette Lurk firstLurk first Read FAQRead FAQ ReplyReply Send a private replySend a private reply

15. Chatting One of the most popular features on the Internet (but no one admits to doing it)One of the most popular features on the Internet (but no one admits to doing it) Text-basedText-based Multi-mediaMulti-media –Internet Relay Chat (IRC) channels Need a program to participate (www.mirc.com)Need a program to participate (www.mirc.com) Instant messaging allows you to communicate privately with othersInstant messaging allows you to communicate privately with others –MSN or AOL