Question about windows incremental backup

Clarifications

I'm bound to wonder what you expect to happen if you restore from a backup? how would the backup you did last week know that you deleted some files yesterday?

I take it you [b]DO KNOW[/b] what a Backup is, don't you ??

Among the many and varied meanings of the word 'Backup' you should concentrate on #4.

[u][b]Backup:[/u][/b]
#1. An accumulation caused by clogging or a stoppage

#2. Someone who takes the place of another (as when things get dangerous or difficult)

#3. A musical part (vocal or instrumental) that supports or provides background for other musical parts

#4. [b](computer science) a copy of a file or directory on a separate storage device[/b]
"[b][i]he made a backup in case the original was accidentally damaged or erased[/b][/i]"

#5. The act of providing approval and support