更多"Begun in the late 1960s by Pentagon"的相关试题:
[填空题]Begun in the late 1960s by Pentagon weapons researchers as a system for easing
communication between computers in disparate electric networks, the Internet has (1) ______
evolved into a popular vehicle for scientific research, communication, entertainment,
and more. It links together thousands of computer networks such as those belonging (2) ______
to corporations, commercial services, universities, and research centers, joining them as
branches on a tree to larger networks known as backbones. Once a computer is on-line,
that is, connected by modem or networking equipment of the Internet, the user can search (3) ______
through data banks for documents, chat with other computer users, or instant send (4) ______
opinions and observations to the likes of President Bill Clinton, film critic Roger Ebert,
or rocker Billy Idol (just to name a few). No central governing body runs the Internet,
and nobody has an exact census of users. B