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 |  In 1995, Steve Tuecke's boss, tan Foster, offered the organizers of a supercomputing conven-tion a demonstration of 'grid computing"—linking supercomputers at university and government labs into a single shared resource. The problem: the labs' computers had incom-patible hardware, security arrangements and queuing procedures, and nobody had written a program to resolve them. "My first thought was 'Oh, jeez,' "says Tuecke, a software designer in Foster's Distributed Systems Lab in Argonne, IL. But within weeks, Tueeke had created the code. The demo was the talk of the convention. Tuecke's software grew into the Globus Toolkit—the
"middlewafe" now used by hundreds of scientists worldwide to share high-end computers, databases and instruments remotely. Using Globus, a European Space Agency researcher could log into his desktop and run a climate simulation on a NASA supercomputer in California.Com-panies like Compaq, Fujitsu, IBM and Microsoft are eyeing Globus as a foundation for business-to-business Web services/what the Web did for document sharing, the grid is doing for more
general resource sharing," notes Tuecke, who recently became the lab's new software architect.
| | TUECKE | | STEVE | | AGE 34 | | SOFTWARE | | ARGONNE NATIONAL LABORATORY |
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| | |  WhenTimTuttlewas30, he quit his Job at Lucent Technologies' Bell Labs, moved into a dilapidated apartment in Cambridge, MA, and began to rein-vent the Web. It had a freshness problem. If the information on a Web page changes while you're
reading it, you don't know—unless you hit the" refresh " button. Tuttle saw a different possibility: a virtual network, overlaying the Web, that lets sites send you live updates on information that changes, the moment it changes-And he was sure he could get it to function on ordinary Web browsers using ordinary Internet protocols—no extra software needed-Working with no funding or source of income, he built the first node of such a network: the prototype of the "Bang object router." After securing $10 million in July 2000,Tuttle,an active ultimate Frisbee player, moved to San Francisco to become an Internet entrepreneur. Six months later, his
network was up and running, used chiefly by financial-services companies that need continually updated information from dozens of sources-Tuttle's company. Bang Networks, has thrived through the dot-corn collapse: it raised almost half of its $32 million in November 2001.
| | TUTTLE | | TIM | | AGE 33 | | INTERNET AND WEB | | BANG NETWORKS |
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| | |  Iran native Vahid Tarokh works so quickly that by the time people apply his advances, he is often on to something else. Such is the case with his breakthrough codes to improve the speed, capacity and clarity of wireless voice and data communications. He developed the codes in 1996 at AT&T Labs, yet U.S. and inter-
national telecom standards bodies didn't adopt them until 1999-Tai-okh's codes solved the problem of how best to get a signal from a base station to a cellular phone without fading. Solutions proposed by others, such as adding an extra antenna to the phone or sending the same signal on different frequencies, weren't practical, so he created algorithms whereby multiple antennas at the base station could send the same signal simultaneously on the same frequency. For two months Tarokh worked day and night handcrafting his solution on huge sheets of paper. He moved to MIT in 2000 to work on "orthogonal frequency division multiplexing/an advanced scheme for wide-band wireless communications-This summer Tarokh joins Harvard University as an electri-cal engineering professor.
| | TAROKH | | VAHID | | AGE 34 | | TELECOMMUNICATIONS | | MIT |
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Source From: TECHNOLOGY REVIEW
June 2002
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產業智庫 
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