The term Appliance refers to two classes of objects:
One class of objects includes items that are custom-fitted to an individual for the purpose of correction of a physical problem, such as prosthetic and energy input. These are grouped into two categories: small appliances and major appliances. Such items as toilets and sinks are not appliances, but plumbing fixtures, because they operate only with water and not with energy input.
Connectivity among home appliances through a single display unit is enabling appliances to communicate with each other and assist in performing key functions. For instance, energy distribution can be managed more evenly so that when the washing machine is on, the oven can ge into a delayed start mode, or vice versa.
Computer networking
Can be described as class of network infrastructure devices which includes hardware and/or software that are custom-designed for the purpose serving a specific function, such as a firewall, encryption, or VPNASIC.
Such items as toilets and sinks are not appliances, but plumbing fixtures, because they operate only with water and not with energy input.
The term "appliance" came to be applied to these devices because of their similarity to home appliances.
Home appliances are generally "closed and sealed" -- not serviceable by the owner; in computer appliances, the hardware box is usually sealed and not repaiarable or upgradable to the user.
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