Which one of the following best defines the term Operating System?
A. The software that allows computer users to run applications with the hardware of a specific system. MicrosoftÂ® WindowsÂ® or AppleÂ® Computer s OS are examples of operating systems. B. The master control program that manages a computer s internal functions and provides a means of control to the computer s operations and file system. C. The software that manages the hardware and software interface of a computer. D. All of the above.