Juggling the way information flows in computer networks and putting idle machines to sleep can dramatically cut power use

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“ISPs say the on-demand TV service is putting strain on their networks, which need to be upgraded to cope.”

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“A research project at the University of Washington spots sections on the Internet that cannot be reached for several hours.”

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It was touted as the big hope for bridging the digital divide, but WiMAX could interfere with the developing world’s TV and telephony links

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  FTP [26] is one of the most useful and powerful TCP/IP utilities for
   the general user. FTP allows users to upload and download files
   between local and remote hosts. Anonymous FTP, in particular, is
   commonly available at file archive sites to allow users to access
   files without having to pre-establish an account at the remote host.
   TELNET might, in fact, be used for this purpose but TELNET gives the
   user complete access to the remote system; FTP limits the user to
   file transfer activities.

   The general form of the FTP command is:

         ftp [IP_address|host_name]

   An FTP session can be initiated in several ways. In the example shown
   below, an FTP control connection is initiated to a host (the Defense
   Data Network’s Network Information Center) by supplying a host name
   with the FTP command; optionally, the host’s IP address in dotted
   decimal (numeric) form could be used. If neither host name nor IP
   address are supplied in the command line, a connection to a host can
   be initiated by typing open host_name or open IP_address once the FTP
   application has been started.

   The remote host will ask for a username and password. If a bona fide
   registered user of this host supplies a valid username and password,
   then the user will have access to any files and directories to which