Answer:
Like ordinary random access memory (RAM), it can be repeatedly read, written to, and erased. Intended mostly for removable computer storage, DVD-RAM provides the capabilities of Rewriteable CD (CD-RW) - users can run programs from the discs, copy files to them and rewrite or delete them.
The answer is multitasking. This is when the OS always programs to share resources to run at the same time.
If the applications were running on separate CPUs, then it would be multiprocessing.
Clicking a menu opens a drop-down list of commands and options. According to Merriam dictionary, menu is defined as a list of things that you can choose from ; especially computers or a list shown on a computer from which you make choices to control what the computer does.
