Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for exchanging data over networks, what would ultimately become the Internet remains a work in progress.
University researchers are experimenting with ways to increase its capacity and speed. Programmers are trying to imbue Web pages with intelligence. And work is underway to re-engineer the net- work to reduce spam and security troubles.
(46) All the while threats loom: critics ware that commercial, legal and political pressures could hinder the types of innovations that made the Internet what it is today.
Stephen Crocker and Vinton Cerf were among the graduate students who joined UCLA professor Len Kleinrock in an engineering lab on Sept. 2, 1969, as bits of meaningless test data flowed silently between the two computers. By January, three other "nodes" joined the fledgling network.
(47) Then came e-mail
Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for exchanging data over networks, what would ultimately become the Internet remains a work in progress.
University researchers are experimenting with ways to increase its capacity and speed. Programmers are trying to imbue Web pages with intelligence. And work is underway to re-engineer the net- work to reduce spam and security troubles.
(46) All the while threats loom: critics ware that commercial, legal and political pressures could hinder the types of innovations that made the Internet what it is today.
Stephen Crocker and Vinton Cerf were among the graduate students who joined UCLA professor Len Kleinrock in an engineering lab on Sept. 2, 1969, as bits of meaningless test data flowed silently between the two computers. By January, three other "nodes" joined the fledgling network.
(47) Then came e-mail
| More than three years after moving from
Australia to this remote part of England, we are still learning how things are
done here. Not too long after we arrived and unpacked, we were invited for "a drink on Sunday morning" by a retired couple nearby. We got there about noon, to find the living-room crowded—lots of chat and discussions, and on all a very jolly occasion. Trouble was, there was no food—no self-respecting Australian would regard a tray of crisps as food. In Sydney, when you are invited for a drink any time after midday on a Sunday, you know you will be fed as well as watered and you plan accordingly. Meaning the hard-worked little woman makes no plans to cook lunch because you are eating out. By one-fifteen my stomach was sending up "please explain" to me. Even the crisps had gone. There was nothing we could do except wait, an A. (A) the only people there B. (B) given lunch as well C. (C) taken to a restaurant for lunch D. (D) asked to take some food with them [填空题]
This product is guaranteed for two years after the date of purchase against defects due to faulty workmanship or materials. The guarantee covers both. Service under guarantee is provided only upon presentation of reasonable evidence (completed guarantee card or purchase receipt) that the date of the claim is within the guarantee period. 我来回答: 提交
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