Glossary of Terms

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Term Definition
Local Area Network

A LAN is a data Network connecting devices including computers, printers and servers in one location for fast and secure internal communication.

Load Balanced

Balancing a workload amongst multiple computer devices, for example, virtual servers or servers.

Leased Line

A Leased Line is a service contract between a provider and a customer, whereby the provider agrees to deliver a symmetric telecommunications line connecting two or more locations, in exchange for a monthly rent (hence the term lease). It is sometimes known as a ‘Private Circuit’ or ‘Data Line’ in the UK. Unlike traditional lines it does not have a telephone number, each side of the line being permanently connected to the other. Leased lines can be used for telephone, data or Internet services.


Latency is a time interval between the stimulation and response or, from a more general point of view, as a time delay between the cause and the effect of some physical change in the system being observed.