What is meant by computer network?
set of techniques, physical connections and software used to connect two or more computers. The network users can share files, printers and other resources, send emails and run programs on other computers.
What types of known networks and a brief description of what each one of them?
Local Area Networks (LAN)
A LAN (Local Area Network) is a system interconnect computer equipment based on high speed lines (tens or hundreds of megabits per second) and usually comprise, at most, a building.
Metropolitan Area Networks (MAN)
A MAN (Metropolitan Area Network) is an interconnection of distributed computer an area covering several buildings, means belonging to the same organization that owns the equipment. Such networks are typically used to interconnect local area networks.
Wide Area Networks (WAN)
A WAN (Wide Area Network) is an interconnection of geographically dispersed computers, which may be even continents. The connection system for these networks typically involves public transmission of data.
What is the difference between a client and a server computer?
- Customer : application computer or computer that accesses a remote service on another computer, known as a server, usually through a telecommunications network.
- Server computer : computer application or program that performs certain tasks on behalf of other applications, called clients.
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