Telenet TheIntelligent Network TheIntelligentChoice Telenet Communications Corporation /A few \Bm dud The Telenet® Public Packet-Switched Network We thought it was time for Telenet is technological What sets Telenet apart communicationsflexibility, data communications to innovation and excellence, from other data communi reliability, and economy. keep pace with data a nationwide data com- cations services? First, Telenet service is fur- processing. munications network, a it's a complete backbone nished on a common carrier dynamic company. The network, already in place, basis, cancellable at any Time to provide a superior technology is called with the unique ability to time on 30 days' notice. alternative to dedicated packet switching. The establish instant connec- You pay for service only networks and the delays network —"the Telenet" — tions between computers as you use it, at low dis- and high costs associated is in operationfrom coast and diverseterminals, tance-independent rates. with their design, instal- to coast. The company, With it you get a complete lation, and operation. A Telenet Communications network management team This is onlythe beginning superior alternative which Corporation, is an FCC- to install and maintain of the story of Telenet, the eliminates problems of regulated common carrier equipment,tailor the intelligent network. More outages, inflexibility, and organization with deep service to your requirrequire- and more users are calling underutilization. roots and many strengths. ments, monitor operations it the intelligent choice in and provide you with data communications. The So we developeda better traffic and accounting following pages will tell way. The Telenet® way. statistics. you why. Tte Oo^tll^Ml ifcfffc points. Long-haul capacity Freedom from errors. MS ww unique characteristics is assignedto the virtual Powerful error detection ""*« ** tech rtf thfi T^lAnAt built into the Telenet connection and the cus- and retransmission which benefit all users, tomer is charged only niques keep the error rate in 10 _ , . , , irrespective of their ap- when data is actually being down around one Telenet is a highly one in 01 2 bits between' ' The licaVlons . transferred. You do not to 1 interconnected network haveto pay for or be nodes. This is one million of programmable switching connections Cus- concerned with idle line rimes betterthan many called Telenet . centers (also tQmer terminals and host time. other available data Offices) and high- Central computerg CO mmumcate communications services. speed digitaltransmission through virtual connec . Adaptive routing. There .. all constantly „ - Rapid lines t transparent com. are no predefinedroutes transmission/re- by Network speed at monitored our mumcatlons channels between nodes in the ception. The Control Center. with aU the attributes of Telenet . Instead, the whichyour data travels , . dedicated links except routing is selected dynam- depends solelyon your unique network is . andyour This h h cogt and Iqw perform ically by computers in the requirements not on trans- based on packet-switching ance V]rtual connectlons switchingcenters, as each equipment, technology, an advanced may be establishedby the packet of data passes mission bandwidth or but thoroughly proven terminal user or host corn- through the node. The direction. Any network negligible means of achieving effi- puter whenever required, route can be instantly transit delay is cient termmal-to-computer, m may be get up perma . changed duringtransmis- andtransparent to the computer-to-computer, nently between two sion to adaptto traffic user. andterminal-to-termmal loading or bypass con- communication. The gested or failed links Highreliability. Telenet's Telenet is daily demon- without your awareness. extensive use of self- strating itsreliability, performance, and econ- omy. irm more money it costs. By contrast, Telenet charges for data actually trans- mitted, independent of distance. The rates are low. We invite your comparison. Single-source network management responsi- bility. Telenet furnishes a complete end-to-end net- work service, taking full responsibility for all net- work components— no longer the problem of dividedresponsibilities and "finger pointing" among vendors of circuits, modems, multiplexers, concentrators, software, etc. Experienced network management personnel install, operate, and main- tain allfacilities, optimizing access lines and tailoring software parameters to meet your traffic and ap- plication requirements. Ask any Telenet user how important this is. mAßßKßmmmmtKamaKmmmmmmmmmmmmamm The Telenet isnationwide . and l steadily towardcompletion of the 60-city network shown here. Why aren't the switching center locati joined by lines? Because there would be more lines than map, and because it would suggest that there isa "right" way for your data totravel. In fact, data is routed fromCity A to CityB not along a predetermined link but via dynamic, adaptive routing . by-passing congested or failed links . going thefastest wa in the blink of an eye. o I \f:^j fn (^ ®o©d Ronofitc install several separate Many organizations have ting back-up processors at data communication found Telenet a practical each computation center. fyf UsinQ systems, each oriented and desirable alternative towardtnw^rrl a HiHorontdifferent an.ap- to private nets . here You have greater flex- the T&lenet P"cation- administra- are some of thereasons ibility in your choice of ■■ ■ tive message switching, why. terminals . you can data in quiry/ select the optimumter- Let's take a look at some entry' typical data response, interactive You can implement new minal for each ofyour communica- locations. tions applications areas and time sharin9- re mote Job teleprocessing applica- entry and so on. Fre- see why Telenet has be- tions quickly and easily, You ter- uentl these networks, can reduce come the intelligent choice <l Y' without "going into the minal expense by elimi- expensive to develop interms of performance and communications business." nating certain n are by terminal flexibility, reliability, and logic (polling and selec- "the'hme they are finallv in The reliability of Tele- economy ... and why tion) and/or terminal operation, dueto orga- net's distributed network many corporations, gov- storage costs. " nizational changes, is appreciably higher than ernment agencies, in inaccurate forecasts of typical leased line "star" You can achieve higher re search and educational or "tree" networks, where institutions have opted to rafflc loading. or techno- host computer utilization *logical developments, a line, multiplexer, or con- ... by making your hosts use Telenet in lieu of, or in centrator failure disables accessible to all your re- addition to, developing and , . terminals Telenet~ etsyou quickly all served by the mote branches, or by operating their own dedi- line. cated communication net- fnd easily obtain the Per " marketing excess machine work s formance capabilities Telenet can easily capacity or use of special found in many dedicated handle your peak traffic programs to other orga- ... for In-House Tele- networks (plus other capa- loads— daily, weekly, nizations. processing billties). b"t with greater System Users monthly, or seasonal— Through Telenet's operatingreliability, as well as your future versatility, Private Network Feature Large corporations, gov- and economy growth, without requiring ~~ you can obtain the func- ernment agencies, and in many cases con" you an and to operate over- tional equivalent of a other organizations sohdate andrationalize often engineered leased line dedicated these separate systems. network that will network, with be ill- access restricted to your used much of the time. own terminal and com- Telenet letsyou locate puter sites. your terminals and com- Short longterm puters anywhere, dynam- and growth ofyour data ically establish communi- com- cation paths (virtual munication and data con- processing nections) between any systems are greatly pair of devices, and change facilitated in terms of traffic handling, or relocate a terminal or new applications, and computer without costly new terminal equipment. network or system modi- fications. for Remote-Access You can use the same Computer Services (and terminal to access different their customers) hosts, either for different I applications, for access to The ability to offer your a distributed data base, services through Telenet or for back-up; and the in any part of the country, hosts need not be located to users with virtually at the same site. By the any type of terminal, same token, computers can makes Telenet an obvious provide back-up for each other without necessita- choice for firms offering computer sites, for ex- Here are some examples: significant reduction in computing ample, result of overall data processing remote — as the Users connected to a either time sharing, data a merger or acquisition. costs through improved particular host can easily computer utilization, not base, remote job entry, or as Users with terminals access remote hosts simplyreduced communi- specialapplication-type For instance, pro- services. already connected to the well. cations expense! computer-based grams can be developedin So does Telenet's low Telenet for one purpose, such in-house ap- time sharing environ- errorrate, dependability, as an a Yet it's easy to come on plication, easily on A, ex- faster access, and high- can use ment Host but board (as the next two on large-scale Host speed capabilities. Even them to access