mql4, where does the iMA function take it's data from?

hello, i like to know where the platform take the data when i use iMA function?
i delete all my ex4/mq4/mqh files from the platform, but when i call the iMA function from new indicator its still working...
where the data is comeing from?
tnx

Probably values are saved in to global variables , try to delete them.
Im not sure just rough idea