Question

an example of a desktop computer operating system is
microsoft office 2012.
adobe flash.
windows 8.
dell computers.

Explanation:

An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. Microsoft Office 2012 is an office suite (word - processing, spreadsheet, etc.), Adobe Flash is a multimedia software platform (for animations, etc.), and Dell Computers is a computer hardware manufacturer. Windows 8 is a well - known desktop operating system.

Answer:

Windows 8.