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Internet / www,

How Computers are connected to each other through Networks

TermDefinition
Computer Networks Computers that are connected to each other form a network
Network Operating System Software that runs on a server
Client/Server Network A network in which one server computer shares its resources, such as printers, files, and programs with multiple client computers.
Local Area Network (LAN) A network configuration that allows deices that are located in close proximity to each other, such as in a home or small business, are connected.
Node Each computer, printer, or other device that is attached to a network. Also called a network node.
Twisted Pair Cable The type of cable that telephone companies have used for years to wire residences and businesses; twisted pair cable has two or more insulated copper wires that are twisted around each other and enclosed in another layer of plastic insulation.
Electrical Interference An induced flow of unwanted electricity created by an electromagnetic field generated by a electric current in a wire
Coaxial Cable An insulated copper wire encased in a metal shield and then enclosed in plastic insulation; coaxial cable carries signals about 20 times faster than Category 1 twisted pair cable, but is considerably more expensive.
Wireless Networks Use wireless transmitters and receivers that plug into or replace network cards to connect devices to a network without using cables.
Internet Protocol address A part of TCP/IP set of rules that includes rules for routing individual data packets.
Domain Name Server The internet host computer that runs DNS software.
top-level Domain The last part of a domain name, such as .com.
Domain Name A unique name associated with a specific IP address by a program that runs on an Internet host computer.
DNS (Domain Name System) Software A program on an Internet host computer that coordinates the IP addresses and domain names for all computers attached to it.
ICANN The Organization that since 1998 has been responsible for managing domain names on the internet.
Fiber Optic Cable Transmits information by pulsing beams of light through very thin strands of glass; fiber-optic cable transmits signals much faster than coaxial cable does, is immune to electrical interference, and is more durable than coaxial.
IP version 4 (IPv4) An IP addressing system that uses a 32-bit number to label each address on the Internet.
byte An 8-bit number
Dotted Decimal notation A method of writing the parts of a 32-bit IP address as four decimal numbers separated by periods.
Created by: dbaker1
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