Computer software & software utilities. Computer software is used on a computer system, and is usually a list of specialized instructions controlling the functions of a computer during an output exercise, such as a printing of a document. There are many different software types used on a computer system, organized in layers. The lower layers are nearer to the hardware of the machine, the higher layers to the human operator. Human operators don't usually work with lower level programs, choosing rather to use compilers or language translators to make the functions easier to understand.
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