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Foundation Questions Set 1

 
COMMERCIAL DATA PROCESSING
   
KU
PS
1. Paula does her shopping in a local supermarket. At the till a scanner scans an object like the one below that is printed on all items purchased.    
 

bar code

    
  a. (i) Name this object.
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    (ii) Give two pieces of information obtained from the scanned code.
(Put an “X” in two boxes only).		  
2
   
Price
Product Number
Country of Origin
   
         
  b. (i) Give one reason why customers prefer this method instead of having the check operator entering in product information.  
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    (ii) Give one reason why the supermarket prefers this method.  
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  c. Sales figures are sent to head office electronically over the Internet.
Name a piece of hardware required to connect a computer system to the Internet.
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  d. The computer at head office stores and processes information for hundreds of supermarkets across the country.    
    (i) What type of computer would the supermarket use to do this? (Put an “X” in one box only).    
   
Laptop
Mainframe
Palmtop
 
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    (ii) Give one reason why the supermarket uses this type of computer system.  
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  e. The stages of the data processing cycle are:
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data storage
data output
data preparation
data input
data processing
   
    List the steps in the correct order.    
   

1.

     

2.

     

3.

data processing

4.

     

5.

     

   
     
5
6

 
 
RESOURCES
Walsh J: Computing Studies . - Chapter 13

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