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The word software is also sometimes used in a more narrow sense, meaning application software only. At the lowest level, executable code consists of machine language instructions specific to an individual processor âtypically a central processing unit (CPU).
A: System software includes a number of applications, such as utilities, operating systems, compilers and debuggers, that lie at a level of functionality just above the actual computer hardware. This software is designed to operate the computer hardware and provide a platform for running application software.