CU stands for

Explanation
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor.

Explanation
Ctrl+G is a keyboard shortcut often used to advance through Find results or move to a specific line in a document, spreadsheet, or text file

Explanation
 pressing Ctrl + J justifies the current line to evenly space its text or words between the left and right margins of the page.

Explanation
Color and pattern used to fill a closed shape is called Fill Style

Explanation
COBOL is a compiled English-like computer programming language designed for business use.

Explanation
Password is a secret word or phrase that must be used to gain admission to a place.

Explanation
Page orientation is the direction in which a document is displayed or printed. The two basic types of page orientation are portrait (vertical) and landscape (horizontal).

Explanation
Bcc stands for blind carbon copy which is similar to that of Cc except that the Email address of the recipients specified in this field do not appear in the received message header and the recipients in the To or Cc fields will not know that a copy sent to these address.

Explanation
Automata theory is the study of abstract machines and automata, as well as the computational problems that can be solved using them. It is a theory in theoretical computer science. The word automata (the plural of automaton) comes from the Greek word αὐτόματα, which means "self-making".

Explanation
A computer virus is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code.