INF111 Information Systems Theory

Review for Second Quiz

1. What are the three categories of equipment that Chapter 3 says you will find in the system unit?
   
   
2. What is the difference between something that is analog and somthing that is digital?
   
   
3. What is a binary digit?
   
   
4. What are the four basic functions of a computer?

   
   

5. What kind of computers usuallly use ASCII coding? What kind of computers usually use EBCDIC coding?
   
   
6. Why is Unicode a better coding system for an international company than either ASCII or EBCDIC?
   
   
7. Assume I am sending the following byte to another computer: 11000010. If I am using even parity, what will the parity bit be set to? What if I am using odd parity?
   
   
8. What are the meanings of the following terms:
   • motherboard
   • microprocessor
   • socket
   • Kilobyte
   • Megabyte
   • Gigabyte
   • SIMM
   • DIMM
   • cache
   • CMOS
   • port
   • bay
     
     
9. Would a computer that uses parallel processing be faster or slower than anther computer that does not? (Assume that there are no other differences.)
   
   
10. If you look at a decimal number, like 123, what is the value of each digit? Why is the value related to the value of its position in the number?
    
    
11. What is the name of the number system based on the number 2? What is the name of the number system based on the number sixteen?
    
    
12. What is the basic crystal element that computer chips are made of?
    
    
13. How is inputting data different from inputting a program?
    
    
14. What two purposes are the keys on a numeric keypad meant to be used for?
    
    
15. What are the three "lock keys" on a keyboard? What are two ways to override their function once they are locked?
    
    
16. What is the difference between a mouse and a trackball?
    
    
17. What is the difference between a pointing stick and a joystick?
    
    
18. What kind of monitor is actually an input device?
    
    
19. Regarding Optical Recognition...
    
    • what is an optical code?
      
      
    • what are optical marks?
      
      
    • what is optical character recognition?
      
      
20. What is MICR? What kind of businesses use it?
    
    
21. What an example of a smart terminal? How does a smart terminal differ from a dumb terminal?
    
    
22. In a standard business setting, who might be an audience for
    • an internal report
    • an external report
    • a detail report
    • a summary report
    • an exception report
      
      
23. What word is applied to a computer monitor that can only display green on black images?
    
    
24. What is a CRT?
    
    
25. What are two kinds of LCD screens found on laptops?
    
    
26. What are three common resolutions that an SVGA monitor can produce?
    
    
27. What is the difference between an impact printer and a non-impact printer?