The unique signal, generated by a device, that tells the operating system that it is in need of immediate attention is called an:

____________ is the ability of an operating system to control the activities of multiple programs at the same time.

____________ are lists of commands that appear on the screen.

During the boot process, the____________looks for the system files.

The operating system does all of the following EXCEPT:

To delete an incorrect character in a document, ____________ to erase to the right of the insertion point.