Your question is uncleear; every time you start the 'vi' editor you get another process.
You don't. Moving from foreground to background, etc., happens outside of the 'vi' editor.
the text is inputed in vi editor by pressing the i key, that mean get the insert permission into vi editor
Within the 'vi' editor, use the '!ps' command with the correct options, depending on the Unix version or variant.
The 'vi' editor is a text editor; it can edit anything that is displayable ASCII text. You can edit a password in the password file using 'vi' (not recommended).
You don't. The 'tar' command has nothing to do with the 'vi' editor; it creates an archive files and the vi editor modifies the content of a file.
vi file name
Vi (pronounced vee-eye), the standard screen-oriented editor provided with Unix operating systems, is the ``visual'' mode of the Ex line editor. Both Vi and Ex commands can be issued from within Vi. Source-The Internet.
'vi' is the standard text editor for Unix. You use it to edit content of a text file.
Unclear question - 'vi' is a utility
vi text editor is a standard text editor found in almost every flavor of Linux, it is the most preferred text editor by most Linux professionals, other text editors include nano and pico are also decent substitutes for the vi editor
No, an editor is an example of application software.
Question is unclear; vi is a text editor and has the functionality of most editors to modify or add or delete the contents.