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Investigation of TWO Information Systems.

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Outcome 3 Information Organisation Investigation of TWO Information Systems Suggest a) WWW Source; amazon.com bbc.com microsoft.com b) USENET Source; http://groups.google.com/ http://groups.google.com/groups?group=news.announce.newusers Newsgroups* are a means of public discussion and distribution of material to a large number of people. They share this fundamental purpose with electronic mailing lists, Web-based bulletin boards, etc. Newsgroups can appear to be very much like one of these other kinds of forums, depending on how you access them. Nevertheless, newsgroups are different from them in important ways, and each kind of forum has its own quirks, advantages and disadvantages. Newsgroup messages are not stored in a single central location (as with a Web-based bulletin board) or distributed from a single central location (as with an electronic mailing list). Instead, they are stored on a multitude of *news servers* that are operated by Internet service providers (ISPs) for their customers, by schools and universities for their students and staff, by companies for their employees, etc. When someone posts a message in a newsgroup, it is first stored on his/her provider's news server. That server then distributes copies of the message to its *peers*, that is, to other servers with which it has agreed to exchange newsgroup messages directly. Those servers then distribute copies to _their_ peers, and so on, until (in principle) all the servers which carry that newsgroup have a copy of the message. When someone reads a message in a newsgroup, he/she is reading the copy that is stored on his/her provider's news server. Some newsgroups are *moderated*. In these newsgroups, the poster's server sends messages directly to a *moderator* for inspection. If the moderator approves a message, he/she posts it on his/her provider's news server, and it propagates from there to other servers (including yours). For more details about the newsgroup distribution mechanism, see: <http://www.geocities.com/nnqweb/how-it-works.html>. People read and post to newsgroups using *news clients* (also called *newsreaders*) ...read more.


If you wish to discuss such an event on the net, use the "misc.headlines" newsgroup. Announcement of professional products or services on Usenet is allowed, provided suitable restraint is exercised. Since someone else is paying the phone bills for this, it is important that it be of overall benefit to Usenet. One of the few groups where such information is appropriate is comp.newprod. comp.newprod is a moderated group; you can get the submission guidelines from the article "Welcome to comp.newprod", posted periodically to comp.newprod and news.answers. You can also get this article by sending a mail message to mail-server@rtfm.mit.edu with the single line: send usenet-by-group/news.answers/newprod If your posting is really relevant to some other newsgroup, particularly one of the *.announce newsgroups, you may consider posting it there; some moderators allow product announcements in the *.announce newsgroups. e.g. an announcement about an Amiga product could go in comp.sys.amiga.announce. Before you post any such announcements, make sure that you carefully read all of the administrative documents for the group. Also, read the regular messages in the group itself for at least a week to make sure that your announcement is consistent with what other people post. Of course, this is true for *any* post, but especially true for commercial announcements. General guidelines: Clearly mark your article as a product announcement in the subject. Never repeat these -- one article per product at the most; preferably group everything into one article. Advertising hype is especially frowned upon -- stick to technical facts. Obnoxious or inappropriate announcements or articles violating this policy will generally be rejected. This policy is, of course, subject to change if it becomes a problem. There exists an alternative hierarchy called "biz" specifically for commercial postings. See the articles "Alternative Newsgroup Hierarchies, Part ...", posted periodically to several newsgroups, including news.lists.misc. You can also get these articles by sending a mail message to mail-server@rtfm.mit.edu with the lines: send usenet-by-group/news.answers/alt-hierarchies/part1 send usenet-by-group/news.answers/alt-hierarchies/part2 Some newsgroups are moderated. ...read more.


include: bionet: Topics interesting to biologists bit: Redistributions of popular BitNet LISTSERV mailing lists biz: Business products and services clarinet: Online daily newspaper, from wire services (available for a fee) gnu: The GNU project of the Free Software Foundation hepnet: High-energy physics research info: A collection of serious gatewayed mailing lists k12: K-12 (primary and secondary) education relcom: Russian-language newsgroups vmsnet: Topics of interest to VAX/VMS users In addition, your site probably carries local groups, such as yourcountry.*, yourcity.*, yourorg.* (Some large sites choose to carry local news hierarchies from many places.) Subject: Finding the right newsgroup To find what groups are relevant for your subject, you might search through your local list of newsgroups (your .newsrc file on most Unix systems; use the command grep <pattern> .newsrc), to see which group names seem related. Then subscribe to those groups, and look at some of the recent traffic, to make sure that your question is suitable for the group. (For example, questions about Microsoft Windows belong in comp.os.ms-windows.*, not comp.windows.*) [The asterisk, '*', means multiple objects (here, groups) are referenced.] On some systems, your .newsrc file won't contain the names of newsgroups you haven't subscribed to. In that case, read the documentation for your newsreader to find out how to add newsgroups, and use the methods mentioned below to find out the names of groups that might be available on your system. On some systems, the 'newsgroups' command will show you a file containing a one-line description of the purpose of each newsgroup (the newsgroups file), or longer descriptions of the purpose and contents of each newsgroup (the newsgroup charters.) Ask your local news administrator if these or similar resources are available on your system. For widely-distributed newsgroups, you can also find the one-line descriptions in the following news.lists postings (also archived at rtfm.mit.edu:/pub/usenet/news.lists) List_of_Active_Newsgroups,_Part_I List_of_Active_Newsgroups,_Part_II Alternative_Newsgroup_Hierarchies,_Part_I Alternative_Newsgroup_Hierarchies,_Part_II The 'List' posts describe newsgroups in the comp, humanities, misc, news, rec, soc, sci, and talk hierarchies. (Often referred to as "The Big 8") (The humanities. ...read more.

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