Database & Sequential File Processing

I need to know the best way to answer these questions. I've read the chapters and am clueless to computers. Please provide examples.  The book looks like jargon. Thanks.



1.      Sequential File Processing:

Give a brief definition of sequential file processing.
Develop an example to illustrate your definition. (The example does not have to be as elaborate. Just a  record with a simple explanation)
Describe where sequential file processing might be used.
Discuss the advantages and disadvantages of sequential file processing.


2.      Database Processing:

Give a brief definition of database processing.
Develop an example to illustrate you definition.  (The example does not have to be as elaborate as in #4 above. Just a few tables with a simple explanation)
Describe where database processing might be used.
Discuss the advantages and disadvantages of database processing.
3.    In  "5.  Data Representation" above several different numbering systems are illustrated.

Please develop your own numbering system using a base number less than 30 and other than 2, 8, 10 and 16.  Illustrate your numbering system by completing the "My System" column in #4 above. Make sure to share your base number with us.  (see below)
Decimal Binary Octal Hexadecimal  My System
Base Ten Base Two Base Eight Base Sixteen Base ?
0 0 0 0  
1 1 1 1  
2 10 2 2  
3 11 3 3  
4 100 4 4  
5 101 5 5  
6 110 6 6  
7 111 7 7  
8 1000 10 8  
9 1001 11 9  
10 1010 12 A  
11 1011 13 B  
12 1100 14 C  
13 1101 15 D  
14 1110 16 E  
15 1111 17 F  
16 10000 20 10  
17 10001 21 11  
18 10010 22 12  
19 10011 23 13  
20 10100 24 14  
21 10101 25 15  
22 10110 26 16  
23 10111 27 17  
24 11000 30 18  
25 11001 31 19  
26 11010 32 1A  
27 11011 33 1B  
28 11100 34 1C  
29 11101 35 1D  
30 11110 36 1E  
31 11111 37 1F  
32 100000 40 20  
33 100001 41 21