The answer is B: installs and runs different versions of an operating system on the same computing device
Virtual machines are like guest operating systems or application environments that give you the perception that you are physically connected to a different box. A system virtual machine, for instance, copies all the components and processes of a real computer. It helps the user experiment with different operating systems and applications without the need to install them on your physical hardware.
Answer:
SEO stands for “search engine optimization.” In simple terms, it means the process of improving your site to increase its visibility for relevant searches.
SEM, or search engine marketing, is the act of using paid strategies to increase search visibility.
