© anthony j. nowakowski, ph.d. communications © anthony j. nowakowski, ph.d. edc 601 instructional...

© Anthony J. Nowakowski, Ph.D.

Communications


EDC 601 Instructional Technologies

e-mail



Client-Servere-mail Model



POP3 Post Office Protocol

SMTP Simple Mail Transfer Protocol

IMAP Internet Message Access Protocol

MIME* Multipurpose Internet Mail Extensions

Just as we have TCP/IP as a common protocol for Internet communication, there are common protocols to handlee-mail called:



IMAP's ability to access messages (both new and saved) from more than one computer has become extremely important as reliance on electronic messaging and use of multiple computers increase, but this functionality cannot be taken for granted: the widely used Post Office Protocol (POP) works best when one has only a single computer, since it was designed to support "offline" message access, wherein messages are downloaded and then deleted from the mail server. This mode of access is not compatible with access from multiple computers since it tends to sprinkle messages across all of the computers used for mail access. Thus, unless all of those machines share a common file system, the offline mode of access that POP was designed to support effectively ties the user to one computer for message storage and manipulation.

IMAP vs. POP3



IMAP vs. POP3



Which selection should we make -

IMAP, POP3 (leave), or POP3

(don't leave)?

Which selection should we make -

IMAP, POP3 (leave), or POP3

(don't leave)?



? laptop

?

Remote

home?

? office(PC)



Web Interfaces



Note: The site to which we connect does NOT have to be the site from which we get our e-mail!

For example, I use Time-Warner Road Runner and check my e-mail at Buffalo State

or I could use my LAN connection at Buffalo State and check my e-mail at profsvet.com.

It all depends on how you configure your e-mail!



DiscussionGroups

((interest groups, listservs, mailing lists))



Open Moderated – messages are reviewed before posting

Announcement – subscribers can only receive messages

Digest – all messages included as text in one message

Discussion groups can be classified into for basic types:



What software is needed to participant in a discussion

group?



e-mail (client)

List server (server)Listserv

Listproc

Mailbase

Mailserv

Majordomo

Software



List Server

e-maile-maile-maile-mail



How do I communicate with a discussion group?



Usually there are two e-mail addresses associated with a discussion group:

the serverwith which you conduct business -subscribe/unsubscribe, list subscribers, etc.

the listto which you send and receive group messages

Note: you can also send an individual message to a group member.Note: you can also send an individual message to a group member.



How do I find appropriate discussion groups?



www.lsoft.com/lists/listref.html

tile.net

Web-based Search Engines



Now let's see if we can find and subscribe to a discussion group.



GROUPS(Usenet, Netnews, News)



What is a Newsgroup?

Like mailing lists, Newsgroups are another way to share information among Internet users via e-mail.



Newsgroups cover a wide variety of subjects which are divided into hierarchies

k12.ed.soc-studies.ww1

general specific



alt => alternativecomp => computersk12 => educationsoc => socialnews => network newsrec => recreationsci => sciencetalk => idle conversation

TOP EIGHT PREFIXES



In a discussion group, messages sent to the group will be sent to all members of that group.

However, messages posted to a newsgroup will be sent to a news server where you can access them at will.



What is a news server?



A place where newsgroups AND their messages are kept.

There are over 100,000 newsgroups world wide. Therefore, instead of being on one giant computer, the Newsgroups are distributed to many news servers.



News Server

x

postmessage



News Serverx

x

x



News Serverx

reply to message

x



News Serverx

postreply



News Servers

ISP's

Institutions

OSP's



Be Aware, Some organizations do NOT support Newsgroups!

BuffaloState

Our Class

Well, actually Buffalo State does. However it only supports a few limited ones, AND you must be

using a campus computer.

Well, actually Buffalo State does. However it only supports a few limited ones, AND you must be

using a campus computer.



How do I communicate with a news server?



As we have seen with other Internet components, there are protocols (http, smtp, pop3, etc.) that are required in order to communicate between the server and the client. For newsgroups, the NNTP (Network News Transfer Protocol) is used.



News reader (client)Agent 3.1TIN 1.6.2 Outlook Express

News server (server)

Software



Public Newsgroup Sites

news://msnews.microsoft.com

http://groups.google.com

http://www.teranews.com



Now let’s see how to add a newsgroup

and read messages



Forums/Bulletin Boards



Like Newsgroups, forums and bulletin boards are “active” ways to share information among Internet users, but these newer methods use your browser.



How do I find forums and bulletin boards?



The following are a couple of forum directories:

www.forumvirus.com

www.forumfox.com

You can also use an Internet search engine such as Google to find a forum/bulletin board. For example:

“jeep forum” or “jeep bulletin board”


We have already examined e-mail, so now consider the following Internet communications continuum.

e-mail chatrooms

text (typed)

audio(spoken)

video(seen)

instantmessaging

computer-computer

computer-phone

videoconference

phone-computer-phone(VoIP – Voice over IP)




We will examine some of these topics (audio, and video) again when we discuss adding multimediaelements to Web pages. For now ourdiscussion will center on these in terms of personal communication.



You can join a chat room

www.mirc.com/irc.html



You can send/receivemessages.

www.icq.com



You can have a conversation

www.dialpad.com http://www.vonage.com



You can see what’s going on

www.microsoft.com/netmeeting

© anthony j. nowakowski, ph.d. communications © anthony j. nowakowski, ph.d. edc 601 instructional...

Documents

pop3 slide

lists slide

communications slide

office pc slide

mail access

offline message access

offline mode of access

moderated messages