"What is Vi? Well, in short - Vi is an "editor", ie a program that allows to "edit" (making changes to) files. These files usually are files containing "text" (ASCII 000-127). Hence VI is referred to as a "text editor", even though you can also edit "binary files" (which include characters with the highest bit set, ie characters ASCII 128-255)."
Autres pages d'intérêt : https://www.guckes.net/talks/vim/vim_advanced.txt
