At the bottom of the screen are two rows of buttons (they may be covered by the text window). The top row holds the "System Buttons" and they let you view different types of computer components. The bottom row holds the "Control Buttons" which let you access special functions of the program. When these buttons are highlighted, their names appear in the item box just below the picture area.
The Control Buttons are Index, Related Topics, History of Computers, Note Pad, Lessons and Quizzes, Print, Help, and Exit.
