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pic directory . The hardware you need to tap into the Internet : Any desktop or laptop computer that can connect to a modem . ( In other words , virtually any computer sold du ring the past decade . ) A modem , preferably 9,600 bps or faster , that is comp atible with your computer . A telephone line . Note : Be sure to disable call-wa iting during online sessions . The software you need to tap into the Internet : Any off-the-shelf communications program . ProComm and Mirror are particularly g ood for IBM compatibles ; zTerm and Microphone are good for Macs . About a decade ago , it would have taken you only a few hours to read every mes sage posted on Usenet , a collection of special-interest groups commonly referre d to as the `` Internet 's bulletin board . '' That would be an impossible task now : Each day , about 106 megabytes of information roughly equivalent to 106 50 0-page books is piped around the world to Usenet readers , said Gene Spafford , a computer science professor at Purdue University in Indiana . ( Spafford counts himself among those old Usenet hands who once read Usenet in its entirety daily . ) What could possibly fill 53,000 pages of text every day ? Cat lovers writin g about their pets . Russian emigres writing about the situation back home . Fan s of Pugsley in the old `` Addams Family '' TV show recounting their favorite ep isodes . And arguments , known as `` flame wars , '' that go on for days about e very religion , stripe of sexuality , computer and operating system . Indeed , e very topic imaginable ( and many you can't imagine ) has its own forum in Usenet . These topics are called `` newsgroups , '' though little of what 's discussed bears any resemblance to news . The name newsgroup is a holdover from 1979 , wh en Usenet was developed as a way to relay information about new product releases , seminars and other timely news , among university computer users . But like t he Internet itself , Usenet has grown to include the rest of the world . To find your corner of that world , it will help to know a little bit about the structu re of Usenet . Newsgroups are arranged according to general categories , or `` h ierarchies , '' including : Computer-related information ( designated as comp ) , world and local news ( news ) , recreation ( rec ) , science ( sci ) , social studies ( soc ) , talk ( talk ) , miscellaneous ( misc ) and everyone 's favorit e , alternative news groups ( alt ) , where some of the weirdest correspondence on the face of the Earth can be found . Within each of the hierarchies are subca tegories . For instance , if you wanted to find the Usenet group where people ta lk about bicycles , you 'd go to rec.bicycles . If you were looking for job list ings , you 'd check out misc.jobs.offered . There 's even a group for discussing bad seafood , called alt.bad.clams . By Spafford 's estimate , there are 10,000 Usenet newsgroups . With so many , it is something of a chore figuring out that rec.bicycles is the place to discuss bicycles , and that there isn't a group ca lled talk.bicycles . Unless you have a book that lists Usenet groups , you 'll h ave to spend some time looking around Usenet for what you want . Happily , most sites that provide full Internet access get daily feeds that include a few thous and of the more popular Usenet newsgroups . Among the national online providers , so far America Online and Delphi offer Usenet , as well . To read and post mes sages on Usenet , you invoke something called a `` news reader , '' which is a s oftware menu system to help you navigate . News readers have their own rules , a nd are usually pretty self explanatory ; typically , if you don't know something , typing a question mark will pull up a help file . On Panix , where I get my I nternet access , I enter my news reader by typing `` N . '' From there , I can t ype `` G , '' which causes the news reader to respond `` go to ? '' It 's asking me what newsgroup I want to browse . If I know the name of the group , I simply type it . But let 's say I 'm looking for a newsgroup where people can discuss gun control . If I type the word `` gun , '' my news reader , being no dummy , a sks me if I want to go to the newsgroup rec.guns or talk.politics.guns . You can assume that rec.guns is about recreational gun use ; talk.politics.guns is the one for me . Aren't computers great ? You should be aware of the cultural conven tions that have come to flourish among Usenet readers . If you 're interested in posting your thoughts to a newsgroup , it 's advisable to first read the FAQ . FAQs are files that contain `` frequently asked questions , '' as well as their answers . FAQS are designed to prevent the same question from being asked every time a new person starts reading a newsgroup . Another thing to be aware of is t his : Usenet is uncensored . If you are easily offended , or if you are a parent who doesn't want your child exposed to certain things , be warned that most Int ernet sites that provide Usenet feeds take all the popular newsgroups . Some of the most popular groups are alt.sex-related groups , where people endlessly disc uss some of the most intimate details of their lives , in extremely explicit lan guage . And then there is the question of flame wars . There is definitely a sid e to computer-based communication that resembles graffiti anyone can scrawl what ever they want in a public place without fear of reprisal . Even if your name is attached to your message , it 's easier to provoke outrage through careless wri ting than through face-to-face conversation . That 's partly due , I think , to the alienation people sometimes feel when they 're sitting alone , at their comp uters , removed from their audience . `` A lot of people think they 're almost c ompelled to abuse others , '' said Spafford , who has cut back in the amount of newsgroups he reads because of what computer-science people euphemistically refe r to as a low `` signal-to-noise ratio . '' In other words , there 's a lot of g arbage out there . ( Optional add end ) `` The problem 's gotten steadily worse , '' Spafford said . `` I think it 's because the entry cost of getting on the N et has gone down to the point where people on the Net don't have an interest in developing harmony and cooperation . '' Spafford said that in Usenet 's earlier days , the users were mostly computer scientists or researchers who had a shared interest in `` promoting computer-professional demeanor . '' `` Now , '' Spaffo rd said , `` you can get 14-year-olds , emotionally , who spend a few hundred do llars to augment their PC , ( get on the Net ) and they can be as rude and crude as they want . '' Your computer 's modem is connected to a phone line . You 've figured out how t o use the communications software that came with it ( or that you bought ) . You 're ready to travel the Internet . So how do you get there from here ? If you ' re a college student , or work at a large communications company , you probably already have Internet access on site . ( Check with someone in your computer ser vices department to find out . ) But for most home users , getting to the Intern et means finding a company that retails Internet access . Then you instruct your computer to call its computer . If you 're lucky , you 'll have a choice of loc al providers . Local access is desirable because it means you willn't be spendin g money on long-distance telephone service on top of monthly Internet access fee s that typically cost less than $ 30 a month . Real Internet access means more t han merely being able to send and receive electronic mail . If you 're just look ing for an Internet e-mail connection , there are many commercial services such as America Online , CompuServe , GEnie and Prodigy that will let you send and re ceive e-mail to Internet users without giving you any other access to the Intern et . Likewise , most local Internet providers offer e-mail addresses as part of their `` basic '' service plans at lower monthly rates than fuller service . Tru e Internet access means being able to connect your computer directly to other co mputers on the Net . It means being able to use a number of tools that help you navigate the online world and find things like archives of software for your IBM clone or Mac . Or card catalogs from the great libraries of the world . Or mult iplayer games in simulated `` virtual worlds . '' It means being able to transfe r large quantities of data at very rapid speeds . That said , you should know th at what most home users purchase from Internet providers is `` gateway '' servic e . Think of gateway service as an indirect ( and cheaper ) connection to other computers ( called `` hosts '' ) on the Internet . Most providers allow you to l ink your computer to their computer , which , in turn , is connected by a high-s peed phone line to the sprawling Internet beyond . Many providers may also offer to sell you a more direct connection to the Internet ( you might see these conn ections referred to as SLIP or PPP connections ) . These connections allow your computer to communicate directly with other Internet computers , but require you to use at least a 14,400 bps modem and special software . They also cost signif icantly more . Scattered throughout the Internet are free files and computer programs that tea ch you how to use the Internet . This has always struck me as sweetly ironic : I f you knew how to find any one of them ( hint : try using archie ) , transfer it ( using ftp ) , move it from your host computer to your PC ( using zmodem ) and decompress it ( using God knows what ) , what more would you need to know about the Internet ? Of course , these files were placed on the Net so that veteran I nternetters could retrieve them , and print them out for Net newcomers . These f ree files are typical of the Internet 's spirit and explain something that you s hould know by now : Here is a community that has flourished because its inhabita nts believe that the world is a better place when information flows freely and f or free . Indeed , until about two years ago , the only way you could learn abou t the Internet was from other people who 'd been there , or from these free file s . Virtually no how-to books were available at bookstores . That 's changed . I n a bookstore in New York City last week , there was an entire section devoted t o Internet books . Every major publisher , and lots of small presses , have thei r own authority on the subject . Most of these books are indistinguishable from each other . Some of them are marketed by exploiting your insecurity about new t echnology . If you really want to understand more about the Internet , you 'll s tart amassing your own library , which , it seems to me , should be built on a f oundation of three books : a comprehensive how-to guide ; a directory of places to go and things to do on the Net ; and a comprehensive computer dictionary , wh ich will help fill in the blanks left by the other two books . Here are some boo ks , published during the past year , that I can recommend : HOW-TO GUIDES `` Th e Whole Internet : User 's Guide & Catalog , '' by Ed Krol ( O' Reilly & Associa tes ; $ 24.95 ) . This is the book that started it all , way back in 1992 , and is one of many Internet-related offerings from the Sebastopol , Calif. , publish er . More than 250,000 copies are now in print , which explains why other publis hers have jumped into the market . Recently updated , Krol 's book is a straight forward account of how the Internet works . It also has a brief list of places t o go and things to do . Best of all , it has a nifty `` quick reference card , ' ' that gives you a short list of commands you need to know to use telnet , ftp , archie and Usenet , among other things . `` Internet Starter Kit : Everything Y ou Need to Get on the Internet , '' by Adam C. Engst ( Hayden Books ; $ 29.95 ) . An excellent find for Macintosh users since , in addition to being a solid how -to book , it comes with a diskette that contains five genuinely useful programs for Net surfing , including Stuffit Expander ( a compression program ) and Inte rSLIP ( a high-speed protocol for connecting to the Net ) . There 's also a Wind ows version if you 're so inclined . `` The Internet Navigator , '' by Paul Gils ter ( John Wiley & Sons Inc. , $ 24.95 ) . Gilster writes a regular column for T he News & Observer in Raleigh , N.C. , so he speaks a form of English most peopl e will readily understand . The book is written in a way that makes you feel as if you were looking over Gilster 's shoulder ; he tells you where he 's going an d how he got there . `` Zen and the Art of the Internet , '' by Brendan Kehoe ( Prentice Hall ; $ 23.95 ) . This guide started as an online file ( and you can s till find it at many sites on the Net ) . It was published in book form for the first time last year . Kehoe really knows his stuff . `` The Internet Guide for New Users , '' by Daniel Dern ( McGraw-Hill Inc. , $ 27.95 ) . Dern , editor at the magazine Internet World , has put together a comprehensive guide , with the right mix of information on Internet tools and Unix commands . DIRECTORIES OF PL ACES TO GO AND THINGS TO DO `` Netguide , '' by Michael Wolff & Co. . ( Random H ouse ; $ 19 ) . The best attempt yet at categorizing and organizing all the grea t stuff you can find out there . Netguide also includes non-Internet cyberspace material , such as forums on the main commercial online service providers . Plan s are under way to put all this information up on an online database , but until then , this book is definitely worth owning . As evidence of its popularity , i t 's the book people keep stealing off my desk at work . `` The Internet Directo ry , '' by Eric Braun ( Fawcett Columbine/Ballantine Books ; $ 25 ) . Instead of approaching the Internet by category , this directory breaks it down into secti ons that index mailing lists , Usenet newsgroups , online library card catalogue s , ftp sites and various navigational sites . Impressively comprehensive , with a good index in the back of the book . `` The Whole Earth Online Almanac , '' b y Don Rittner ( Brady Computer Book ; $ 32.95 ) . The Whole Earth folks have bee n way out in front on the Info Revolution , and their book is well laid out and complete . `` Internet : Mailing Lists , '' edited by Edward T.L. Hardie and Viv ian Neou ( Prentice Hall ; $ 29 ) . The book is little more than the comprehensi ve List of Lists , a list of all the e-mail groups that anyone on the Internet c an subscribe to . E-mail groups focus on any topic you can think of , from dog o wnership to `` Mayberry RFD '' fans . A DICTIONARY The Computer Glossary : The C omplete Illustrated Desk Reference , '' by Alan Freedman ( Amacom ; $ 25.95 ) . Of the half-dozen or so computer dictionaries , this is my favorite . Lots of pi ctures and charts . The explanations of arcane computer technology are simple an d direct and willn't make you feel like a Complete Idiot-Dummy . Scientists at the Princeton Plasma Physics Laboratory in New Jersey announced t his week that they have set a new world record for the amount of power produced in a nuclear fusion reactor : 9 million watts . Last December , the same reactor set a series of new world records at 3 million watts and 5.6 million watts . Th e new power level , which was maintained for about one-quarter of a second , app roached the reactor 's design-maximum of 10 million watts . The experiment was d one in the Tokamak Fusion Test Reactor , a $ 1.4 billion device that is not inte nded to produce sustained power but to operate in bursts so that scientists can learn how to control the hot , ionized gases , or plasma , that creates the powe r . Once they learn to control the plasma , the scientists hope to build a react or that will operate continuously , generating enough energy to sustain itself a nd have enough left over to generate electricity . In this experiment , however , the reactor consumed about three times as much power as it produced . `` This was a major success , '' said lab director Ronald Davidson . `` We 're discoveri ng a lot of intriguing phenomena in these experiments . '' The reactor works by feeding two forms of hydrogen gas deuterium and tritium into a doughnut-shaped c hamber and heating the particles with electromagnetic energy until they move wit h such speed that they overcome their natural repulsion , slam together and fuse . WASHINGTON The U.S. . Sentencing Commission , which sets prison sentences for f ederal crimes , has long been a target of criticism from defense lawyers , liber al judges , civil libertarians and the like . Critics complain the 7-year-old co mmission merely replaced the unchecked sentencing power of federal judges with a Republican-controlled , computer-like operation of fixed sentences that ignored differences among criminals . Some even thought that the Clinton administration , with four vacancies to fill on the seven-member commission , would seize the opportunity to put its stamp on federal sentencing . But the commission , which went part time ( except for the chairman ) on Jan. 1 , is limping along doing no thing controversial while it awaits the administration 's actions . This is one the Democrats can't blame on the Republicans . The holdup seems to be a fight am ong powerful Democrats over who will be succeed the chairman , William Wilkins J r. Sen. Edward M. Kennedy , D-Mass. , wants Boston federal Judge David Mazzone , who is now a commissioner . Sen. Joseph R. Biden Jr. , D-Del. , wants his law s chool chum , Commissioner Michael Gelacak , in the job . Attorney General Janet Reno had been interviewing candidates last fall . Another list of candidates is being put together now . WASHINGTON A draft presidential executive order was circulated by the White Hou se last week calling for a `` bulk declassification '' of 48.8 million pages of documents held by the National Archives . Half of the material is World War II-r elated and the other half concerns selected records up through the Vietnam years . The draft was sent out with a very short turnaround time for responses becaus e the White House was hoping to make an announcement before President Clinton to ok off for his D-Day trip . But the agencies came in asking for more time to rev iew the material . The World War II stuff is mostly Army papers . There is some State Department material , as well as some Office of Strategic Services ( the o riginal CIA ) documents . It is going to be tough for some of the classification zealots to defend holding 50-year-old documents , but some may give it a try , using the old `` sources and methods '' approach . That might still work if any of the sources are living . Word is the executive order will be signed shortly a fter Clinton returns . He wanted his wife to quit smoking . It was a simple wish , yet its consequence s were profound . This was in the 1970s , in Greece , where smoking was as cheri shed a pastime as baseball in America . Dimitrios Trichopoulos didn't care about bucking the tide . He simply detested his wife 's addiction . A young cancer ep idemiologist at the University of Athens , Trichopoulos tried the usual guilt tr ip . He told her she was hurting herself . On this , he said , the medical liter ature was clear . When that didn't work , he told her she was hurting him an arg ument he could not support with statistics . She didn't believe it . Ever the sc ientist , he set out to prove it . That family argument wound up earning Trichop oulos a place in tobacco history . He was the first researcher to connect second hand cigarette smoke with an increased risk of lung cancer . He accomplished thi s in a somewhat unorthodox fashion , pirating $ 50,000 from one of his grants to conduct a survey of 189 nonsmoking women . ( Greek officials , Trichopoulos say s , would never have given him money to study the detrimental effects of a cash crop as lucrative as tobacco ) . He found that smokers ' wives were twice as lik ely to develop lung cancer as women married to nonsmokers . It worked . `` I con vinced her , '' Trichopoulos says . His wife quit . The study did much more than clean the air in the Trichopoulos home . He published it in 1981 , days before the publication of a larger study conducted by Japanese epidemiologist Takeshi H irayama . These papers gave a huge boost to a grass-roots anti-smoking campaign that has dramatically changed the way Americans work , dine , travel and raise c hildren . This is the nature of the secondhand smoke revolution : a little bit o f science still emerging , not all of it conclusive shaping a lot of public poli cy . For anti-smoking activists , scientific research into the dangers of second hand smoke has been a godsend . The high point came last year , when the U.S. . Environmental Protection Agency declared secondhand smoke a `` Group A '' human carcinogen , reporting that it accounts for 3,000 lung cancer deaths each year . This placed it in the same deadly category as asbestos and radon ; the agency c oncluded that the danger cannot be eliminated by using smoking and nonsmoking se ctions . Thanks in large part to that report , secondhand smoke is now one of th e nation 's most pressing and divisive public health issues . Coupled with alleg ations that tobacco companies have misrepresented the nicotine content in cigare ttes and tobacco executives ' denials the issue is bringing public outrage to ne w heights . But the tobacco industry is fighting back hard . A coalition of farm ers and manufacturers filed a lawsuit alleging that the EPA `` manipulated and c herry-picked scientific data '' and asked that a U.S. . District Court judge in North Carolina nullify the report . In California , tobacco giant Philip Morris Download 9.93 Mb. Do'stlaringiz bilan baham: |
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