Переведите вопросы на язык. 1. what devices are used for inputting information into the computer? 2. what was the most common device in early personal computers? 3. what is the function of a keyboard? 4. why do many users prefer manipulators to keyboard? 5. how does the mouse operate? 6. what is its function? 7. what role does the ball on the bottom of the mouse play? 8. what is used in portable computers instead of manipulators? 9. what is the touch pad's principle of operation? 10. where do graphical plot ting tables find application?