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telecommunications cables
Telecommunications power cable is intended for use in AC/DC distribution circuits, wire ways, racks, and conduits installed in the telecommunications of Central Offices , transmission stations, cell-tower sites, and other remote sites. These environments are normally dry, but cables may be placed in partially covered or to protected porches, crawl spaces, or in underground vaults where water and high moisture levels can occur. -
first email
The first email was sent between two computers that were actually sitting right next to each other. ray Tomlinson invented the email -
network packets
A network packet is a formatted unit of a data carried by a packet switched network. A packet that consists of control information and user data -
ARPANET
The Arpanet was an early packet switching network to implement the tcp and the Ip.The ARPANET was founded by the Advanced Research Projects Agency (ARPA) of the United States Department of Defense.