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A computer network is a set of computers sharing resources located on or provided by network nodes.Computers use common communication protocols over digital interconnections to communicate with each other.
-A 0.0.0.0 computer network diagram of client computers communicating with a server computer via the Internet. Client is a computer that gets information from another computer called server in the context of client–server model of computer networks. [1] The server is often (but not always) on another computer system, in which case the client ...
A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. [1] It often uses a computer network to spread itself, relying on security failures on the target computer to access it. It will use this machine as a host to scan and infect other computers.
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. [1] In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access.
The term was applied in the 1980s to network technology [5] that emerged when the Internet was fairly new in terms of its global use and connectivity. [6] The predecessors to firewalls for network security were routers used in the 1980s. Because they already segregated networks, routers could apply filtering to packets crossing them. [7]
Internet security is a branch of computer security. It encompasses the Internet , browser security , web site security, [ 1 ] and network security as it applies to other applications or operating systems as a whole.
The term chatiquette (chat etiquette) is a variation of netiquette (Internet etiquette) and describes basic rules of online communication. [8] [9] [10] These conventions or guidelines have been created to avoid misunderstandings and to simplify the communication between users.
An Internet Protocol address (IP address) is a numerical label such as 192.0.2.1 that is assigned to a device connected to a computer network that uses the Internet Protocol for communication. [ 1 ] [ 2 ] IP addresses serve two main functions: network interface identification , and location addressing .