How do we “read” and “write” in MAR and MDR memory unit, please help I am very confused :)

David is in week 3 of his current ashford course and has a paper due by monday night at midnight. he has finished everything but the concluding paragraph. as he boots up his computer to work on it, he sees a flash across the screen and then the screen goes black. he begins to panic as he tries desperately to turn the laptop back on. david should have saved his work on what kind of portable device?

Guys do you know sh27 cause he hacked me : ( pidgegunderson my old user

Does anybody know how to hack into a google account? i had important information on it and it is gone now and i need getting it back.