Micro #26
31 января 2000 |
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Network - Network Relcom (Relcom); Network "SET Bliz"; noncommercial FTN-sovmetismye network.
Network 5.1. Network Relcom (Relcom) a. The operating organization - MNIOPK "Demos." b. 1990 - establishment of a network (ITC IAE them Kurchatov and MNIOPK DEMOS). Members 2 UNIX machines exchange information on developments in the field of operating systems. 1990 August - network includes 30 organizations - members of the Soviet organization of users of UNIX. Established contacts and exchange messages with the European network EUNET. 1991 Spring - Connecting to a network of business structures. The beginning of exponential growth in subscriber numbers. 1991, summer - you become a network government agencies (Ministry of Economics, Finance, State Bank, etc.) involvement in a network of independent news Agencies: (Interfax, POSTFACTUM, Economic News Agency, RIA etc.) 1991, Fall RELCOM become a recognized and popular means of interaction business, research and control structures throughout the USSR. 1992 Spring - Create Joint Stock Company RELCOM. RELCOM (RELCOM) - 60000 users of the 2500 institutions in 260 cities. 400 megabytes per day internal traffic, 40 MB - foreign. RELCOM - is a network messaging combining postage machine in the throughout the country. As a national network RELCOM is part of a European network EUNET, so the network subscriber RELCOM extends agreement to exchange e-mail messages that exist between network network EUNET and with international networks like INTERNET, UUNET, BITNET, compuServe and others, with the number of subscribers worldwide networks of more than 1000000. "Nodes" machines located in major cities, provide an exchange of letters and dissemination of messages in your phone regions. Regional centers are combined RELCOM dedicated communication channels, switched channels of conventional telephone network, or use the channels of specialized telephone network Iskra-2. Custom machines are associated with regional hub switched telephone lines. On the technical side RELCOM represents a set of regional machines, each of which provides for the exchange of messages in my phone and transmits the intercity region of origin of another regional car. Hardware base of two Moscow regional network of centers provides the opportunity to work up to 300 telephone channels, As units of the machine used a computer type MicroVAX. The network has regional hubs in Moscow, Kiev, Novosibirsk, Barnaul, Tallinn, Riga, planned to create more nodes in 10 other cities. Currently, 15 thousand subscribers of 80 cities throughout the country use e Mail RELCOM. E-mail is an geographically distributed system of delivery of messages based on the known protocol UNIX-to-UNIX. Transmission of messages in network is switched channels in the accumulation mode, which makes it impossible for the system users in real time. Relcom network subscribers are able to use the computing resources of some foreign IBS (Eg, INTERNET, BITNET). The average exchange time, distortion-free messages, graphics, program is two hours, but no more than four hours to anywhere in the world. When you connect to RELCOM, the user gets the opportunity to correspond to e-mail as with other subscribers RELCOM, as well as with international callers networks. He can receive messages on the USENET newsgroup topics that interest him and send your own message teleconference participants have access to public archives, existing on some of the larger machines in RELCOM, and in other related networks in around the world. B is currently a network IASNET and Relcom conjugate using a 4-port Gateway Sold on EBM with the operating system UNIX. c. Services provided: - E-mail E-mail intended for the exchange messages between users on the network RELCOM and other networks that are compatible on the format communication with the network INTERNET. Messages consist of a header containing the service information and text, which allowed 'All' (the letters of the Russian and Latin alphabets, binary codes, graphics). Communication Users with e-mail going through the postal system Mail, which allows you to send and receive messages, sort them, write to the archive search the archives, and more. Each network user is address to which mail programs determine where to deliver messages for him. - Teleconference USENET USENET newsgroup is for the exchange of news between users from around the world. Anyone with access to USENET, can read any message or send it himself. To gain access to USENET, You need to find a car related to your and having access to the teleconference. Through it, you'll receive and send messages. Messages are exchanged teleconference participants. have the same view that e-mail messages, but contain in the header, some additional fields. Newsgroup messages are divided into interest groups - "news-group." Now there are several hundred "News-groups", the amount of information in them is about 5 megabytes per day. Programs news reader can subscribe to a conference participant groups that he wants to receive. - E-newsletter Electronic newsletter - The Teleputing Hoteline. The network is open RELCOM subscribe to electronic newsletter The Teleputing Hoteline. This newsletter is published twice a week (1 issue - about 18 KB), edited in Atlanta (USA) London (England). Russian version of The Teleputing Hoteline is published in 5 hours after his arrival overseas. Hte Teleputing Hoteline prepared based on news supplied by the independent news agency Newsbytes News Network Development of electronic and computer industry and communications. 5.2. NETWORK "SET Bliz" (ELECTRONIC SYSTEM TRADE) a. Operating entity - a limited liability partnership - Company ETB Blitz. " b. The system provides a centralized database that stores information with proposals to clients. The system is implemented as a local area network PC with access to external users through the public switched telephone network. c. Network "SET Blitz" allows customers to: - Provides instant direct transactions with known here as a result; - Receive information on the status and market conditions; - To work around the clock from any point. Company ETB Blitz offers customers the opportunity to purchase the entire system. 6. NON-PROFIT FTN-COMPATIBLE COMPUTER Terna NETWORK This is a very common standard, which now guided hundreds of amateur and commercial networks around the world appeared relatively recently, in May 1984, in parallel with the emergence of the world's largest amateur network FidoNet. Further improvement and development of FTN standard occurred synchronously with this global computer network. 6.1. FidoNet Laziness as a powerful engine of progress, ideally played a constructive role here. Two professional programmer - Tom Jennings (Tom Jennings) from San Francisco Medill and John (John Madill) from Beltimora, reputed to be large ground sloth, were deeply baffled by a complicated procedure of their communications. They, poor things, had to call each other on BBS, a long press on the keys, writing in the on-line message, then again to call and read the answers. Such an outrage could not last long and, in Eventually, Jennings wrote the first prototype of FTN-compatible mailer (Mailer), expected to have off-line mode, and editor of a small private messages (Message). Mailer in touch with his counterpart in Beltimore, and they are using the procedure "Handshake" (Handshaking), which contained basic information about the binding stations, set the mail session (Mail Session), during which automatically transmit the necessary messages. Further developed a special message format is different from RFC822, and called Fido / *. MSG-Style Messages. Also introduced a new system writing addresses. For example, the expression 2:5020 / 275.909 meant that the user is in the second zone (Russia + Average Asia + Caucasus), Network (Network) 5020 (Moscow), under the Node number 275, serial number 909. Such a user, by the way, is called Point. Point'ov a Node can be ooooooochen much. Improved postal service, and now in the world they exist dozens, perhaps hundreds. Increased the number of Node and Point stations and Jennings began to eat again laziness. After only one month of existence of the network there were already 20 Node-node, a month later they were already 50. And everyone had to call and send current e-mail. At this point, and ripe wonderful idea put into the network scheme for routing mail. It is this simplified scheme and has been shown in Figure 1. From now on, each node has its uplink and downlink, was built multi-level system Hub-nodes and Jennings I may have to do the improvement FTN-compatible software. A list of all Node-node contained in so-called Nodelist'e, which clearly were listed name, location station, sysop name, phone number of the site, it supports data transmission protocols and special flags (eg, MO (Mail Only) meant not applicable to this site, BBS; CM (Continuous Mail) - non-stop mode work). Information on Point-stations were accumulated with similar Pointlist'ah. Pointlist'y usually published and distributed within limited areas, as, for example, a user in New Zealand do not need to know our old friend with the address 2:5020 / 275.909, whiling away their days in the cold Moscow. If you want, it just might to file a request (File Request) to any station containing Pointlist Network (Network) 5020. Rigorous system of mail routing running with a fair pedantry, regulated hierarchical relationships between network nodes allowed FidoNet sharply stand out among other networks. Increased walking speed communications, increase reliability of receipt by the addressee of the expected letter. Was established so-called Zip Hour Zone (Zone Mail Hour, in further ZMH), when all members of the network are required to deal exclusively with the transfer mail. If the mail site operated BBS, sysop was obliged to "cleaning" of all non-web users, in order not to delay the passage of traffic (angl.Traffic - flux motion). Soon after, in parallel with the progressive increase the network really matured question improvement of communication system members network among themselves. Indeed, until this time, if the user wishes to his thought heard many, he had to duplicate the message in the n-copies (Carbon Copies), which was done, as always, laziness. Besides this a wise idea could not hear interested persons on whose behalf the author did not even suspected. In this moment was born the idea of creating a thematic teleconferencing (Echo Conference), where each auknuvshegosya could hear many more. For this purpose was established A special group of programs called tosser (English Toss - throw, throw). Tosser (Squish, Fastecho, Gecho and etc.) were intended to give the user the ability to send messages to various newsgroups, relevant way they decorated kompressiruya and generating an indication of the postal service to send crafted packet to a specific network address, where the user received a message from this conference. Tosser was almost the same as the views and opinions, as is known, it is usually the number of creatures involved in the debate. Thus was formed a number of content standards Echo-mail node. Over time, they stood out Squish, HMB (Hudson Message Base), JAM and Fido / *. MSG-Style standards, the latter of which, because of the impracticality, soon was used exclusively for personal correspondence. Together with the tosser to develop and refine the editors Echo-conference (GoldEd, Great Wall, etc.) with which the user can quickly and easy to use teleconferencing services. Backbone available only in Moscow Echo-conference several hundred names. Each node can have multiple addresses (AKA, Eng. Also-Known-As - Also-Known-As), which allows him to use all of their conferences uplinks. After happens the same way that one of the uplinks follower of the sect Aum-sinreke and its downlink a passionate admirer of Buddhism. Then follows a Buddhist or find another uplink, which would be accessible to a teleconference on relevant topics, or make an existing sign on it. As the network and the modems themselves, emerged and evolved File Conference (File-Echo Conference), where as elementary units were no messages, and, as mentioned above, files. Thus, a member of the network, wrote in his opinion, a brilliant program that could send it through the file of the conference all it signed. True, the daily flow (Traffic) in such conferences ranges from one to several megabytes per day, but existing at the moment capacity modems allow them to maintain without special efforts. 7. CONCLUSION Someone said: "If you think that Education is expensive, try ignorance. " In my, and not only my opinion, everyone is constantly striving to at least try to learn something new, most advanced and promising. Within e-business can be found a little application that has evolved would be as fast as those associated with the transmission of data: data browsing, e-mail transfer of funds, office buduyuschego home computers, distributed data processing, electronic data interchange (office EDI) and so on. Five years ago there were people who said that the modems soon die, since communication will be fully digital. However, we believe that modems still serve tolgoi.
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