Computer is an electronic device which is capable of receiving information (data) and performing a sequence of logical operations in accordance with predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals. When we say Computer is an electronic device it means for it to function and perform a certain task it must be connected to any power source, but nowadays there are some computers have been coming with a built-in battery that stores data if charged.
Computer maintenance means the practice of keeping computers in a good state of repair. Routine computer maintenance helps out to keep your computer at ease, poor and bad maintenance takes a computer into slow and low performance, when we talk about maintenance any individual should engage in a routine and regular configuration if his or her computer.

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