Microsoft Office is an example of

software for which a license must be purchased to use the

program. Microsoft owns the source code and the source code is not available for modification.

platform

operating system

open source

proprietary

Question $11$

serves as an intermediary between a computer's hardware and productivity

applications. The software's job is to direct the computer system's activities for these applications such

as opening the programs, storing the files, and sending files to the printer. This best describes

a software suite

an operating system

application software

contract software