Which of the following are often used to ensure that data has been accurately input to the computer?

Which of the following are often used to ensure that data has been acc

1.	Which of the following are often used to ensure that data has been accurately input to the computer?
A.	digitizers
B.	light pens
C.	keyboards
D.	input controls
E.	None of the above
Answer» E. None of the above

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Which of the following are often used to ensure that data has been accurately input to the computer?

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