In the computerized environment, a command is a representation that literally commands and determines an action that the computer must perform. This command is usually performed by the computer user himself, however some software can perform this action.
An example of a command is the "Worksheet Object> Open" which is used when you want to open a spreadsheet object in a separate spreadsheet window.
Best way to store all your files is a external storage device, like a hard drive or a usb stick, copy all your files to the device and keep it in a safe place.
