A computer appliance is any type of hardware device that can be connected to a computer with the use of some type of cable, and which is designed to perform specific tasks. As with most types of appliances, these devices are self-contained and not intended for upgrading or repairs by the end user. In order to function properly, the appliance must have a connection to a power source as well as to the hard drive of the computer system. Once those connections are made, the computer appliance can be used to carry out whatever task or tasks it was designed to perform.
One common example of a computer appliance is an external hard drive. This particular device provides resources that make it possible to manage software applications that would not be capable of running on the internal hard drive of the computer itself. Users with older systems who want to augment capacity rather than buying a new system will often find this type of computer appliance makes it possible to enjoy the use of newer programs without the need to upgrade the basic system.
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