Explanation

Ctrl + Z  used for = Undo

Ctrl + X  used for = Cut

Ctrl + Y   used for  = Redo

Explanation

CPU Menas central processing unit,

CPU is a principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit.

Explanation

You cannot close the MS Word application by choosing the "File" menu, then the "Exit" submenu. 

Explanation

the integrated circuit is a set of electronic circuits on one small flat piece of semiconductor material, usually silicon.

Explanation

Ctrl+O: Open an existing presentation.

Explanation

Control penal menage account of user

Explanation

Manual calculation mode means that Excel will only recalculate all open workbooks when we request it by pressing F9.

Explanation

2 scrollbars does a window have in general.

The ScrollBar controls display vertical and horizontal scroll bars on the form. This is used for navigating through large amount of information.

Explanation

• The Cut feature allows you to remove selected text from the document and temporarily place it on the Office Clipboard.
• The Paste feature allows you to get text from the clipboard and place it in the same or even another document.
  
  

Explanation

Excel is a spreadsheet programme