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Internet According to different documents describing the
Internet, it is a collection of networks, routers, gateways, and
other networking devices that use the TCP/IP protocol suite and
function as a single, cooperative virtual network. The Internet
provides universal connectivity and three levels of network
services: unreliable, connectionless packet delivery; reliable,
full-duplex stream delivery; and application-level services such as
electronic mail that build on the first two. The Internet reaches
many universities, government research labs, and military
installations and over a dozen countries. |
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