What are the advantages of using bar code scanner?  Fast  It is fast  It is fast for reading data  It is fast for data input  Accurate  The advantage is accurate  The advantage is accurate for reading data  The advantage is accurate in data input

What is the advantage of using hand-writing recognition to input Chinese characters?  Easy  Easy to use  It is easier to use than keyboard.  It is easy to learn before using it.

What is the disadvantage to use hand- writing pad to input Chinese characters?  Slow  The input speed is slower than using keyboard  It is more time consuming than using keyboard  Cannot get characters  The accuracy of recognition is not high enough.  Some characters are difficult to recognize