Explain the difference between storage devices and virtual storage

Explain briefly why you cannot expect to find a previous version of every file with which you work.

These tools give presenters more freedom to move about the room and interact with their audience. laptop computer laser pointer lcd projector remote control

You wanted to look up information about alzheimer's, but you were unsure if it was spelled "alsheimer's" or "alzheimer's." which advanced search strategy would be useful? a) a boolean search b) using a wild card in your search c) trying different search engines d) doing a search for "alsheimer's not alzheimer's" asap. ill give brainlist.