exsisting systems integrate: more often networks are not developed from scratch but need to fit in with exsisting system, sometimes an extension is required, therefore any new network must fit in with the operating systems and protocols of the exsisting. It must support any peripherals that are already in use e.g. bar code readers, printers etc.
perfomance and speed required: reliability, user friendliness, capacity, speed of processing
E) An intranet is a network set up entirely within a LAN and can only be accessed internally.
Examples: web pages can be stored and accessed from anywhere on the network
emails can be sent interally with the LAN
It can also beused for staff training or daily bulletins.
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