URBANA, Illinois. Welcome to Cyber City, USA, where scientists are developin

游客2023-12-21  9

问题     URBANA, Illinois. Welcome to Cyber City, USA, where scientists are developing the next-generation Internet and leading ground-breaking research in artificial intelligence.
    The University of Illinois at Urbana, which has a student body of 36, 100, has a proud computing tradition. In 1952, it became the first educational institution to build and own its own computer.
    That computer, ILLIAC, was four metres tall, four metres long and sixty centimetres deep. Its processing speed was about 50 kilohertz compared with 200 megahertz — that’s 200,000 kilohertz—for today’s computers.
    At the state-of-the-art Beckman Institute for Advanced Science and Technology, researchers from disciplines as far-ranging as psychology, computer science and biochemistry are focusing on biological intelligence and human-computer intelligence interaction.
    Beckman also houses the National Centre for Supercomputing Applications (NCSA), which played a key role in the development of the Internet global network. It was NCSA that developed Mosaic, the graphically driven program that first made surfing on the Internet possible.
    Mosaic, introduced in 1992, has been replaced by much more powerful Internet browsers such as its successor Netscape or Microsoft’s Internet Explorer.
    NCSA officials say they are now trying to bring more advanced computing and communication to research scientists, engineers and ultimately the public.
    "What we’re looking for is a national system in which the networks are 100 times greater than the Internet today, and the supercomputers are 100 times more powerful," said NCSA Director Larry Smarr.
    A proposed joint project would develop a prototype or demonstration model for the "21st century national information infrastructure" in line with an initiative announced by President Bill Clinton last October.
    If funded by the National Science Foundation, the new structure would take effect on October 1st.
    NCSA, one of the four operational federal supercomputer centres in the country, is awaiting a decision from the Foundation’s board late this month on a competition for US $ 16 million in contiued annual federal funding.
    NCSA, which employs 200 people and has a yearly budget of US $ 31 million, is expected to be one of two winners along with its counterpart in San Diego.
    "The University has put a great deal of effort into this competition. We remain hopeful about the outcome, but we will have no comment until the National Science Foundation Board’s decision," Smarr said.

选项 A、4
B、100
C、200
D、4,000

答案 D

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