What is the shortcut key to "undo" last action on a Microsoft word page?

Which key deletes text?

The Caps key on a keyboard is used to___________

Which of these application packages is mostly used by computer users?

From where can the name of a user account be changed?

A word processor can be used to

The function of an assembler is to _________

Fire fox is an example of __________

A computer can't boot if it does not have ____________