Data Input Principles

                                G08c Review

Answers are at the end of the document.

 1. The GIGO principle is: G        I        G        O

 2. What the computer puts out is only as accurate as what you put 
    in: this is commonly known as the            principle. 

 3. What is the most expensive part of most computer data systems?

 4. What is the most common source of computer errors?

 5. What is usually considered the most unpleasant operation in 
    running a computer data system?                      . 

 6. Computer systems experts try to find ways to do as            
    manual data entry as possible. 

 7. One way to improve the data entry situation is to capture           .

 8. Name one way to improve accuracy when people enter data into 
    computers. 

 9. Name one way in which data entry can be made more accurate 
    through software: 

10. Name one way in which data entry can be made more accurate 
    through computer hardware: 



ANSWERS:

    1. Garbage In, Garbage Out.
    2. GIGO, or Garbage In, Garbage Out.
    3. Data entry.
    4. Data entry.
    5. Data entry.
    6. Little.
    7. Keystrokes.
    8. Proofreading (individual or team); or...doing data entry for only limited periods.
    9. Check-digit systems, or...Interactive database checking
   10. verifying keypunches, or specialized keyboards, or optical
       reading devices, or voice data entry