1. Software Computer

2. Software Computer
(System Software)
ก (Application Software)
(Programming Language)

3. (Software) ก (Program)
!" # " " ก
!$ % &"# ! # '( ก ) 2 * + ,( -
• (System Software)
• ก (Application Software)

4. System Software
ก " "( ก' (! *ก '"( - . # !#
!" # !' ก . # ! # ก ( "/ 0
!' ก 1/ *'' ( /* ! ! * !ก
ก'21 ก % &"# ! # *'' '( ก ) 2 *+ /ก
• &' ( 'ก) (Operating System)
• ( +,)-) (Translator)

5. Operating System : OS
/0) 123 456 37 ก 089: ;< / <)3=) 5 +
ก 09/>?)89:@>ก) A A0ก) &' ( '3)>6 3=) 5 +
B>( B>>AC ) B(: 3 BC ) / ( A A0ก) 8C ) 3)>6 3=) 5 @/? ก(
ก D4<> DOS, UNIX, OS/2, Windows + Linux
Mac OS

6. Operating System Function
System boot
7 ก 0A A0 ก S <)3 T 89:D U>0) V)>@> /W D9ก
9ก <)3 <) Device Driver
Y(5ก) 3)>@>B< >6 3ก) '5 < ก( Z;?@4? + C)> A )0B 5 ก
@/? ก<Z;?@4?
ก) Y(5ก) [ +
YB 6? Z'5+)5 + 6(5Y(3/ ก) 8C)3)>6 37 ก 0
@/? 'ก) 7 ก 0 ก W:>

7. Example Operating System
Ms-DOS
8C)3)>D U> 3)>D59 (Single Task)
Ms Windows
) ''/+) 3)> (Multi Tasking)
Windows 95, Windows 98, Window 2000, Windows Me, Windows XP,
Windows 2003, Windows Vista
Network Operating System : NOS
Windows NT, Windows 2000 Server, Windows 2003 Server, Netware

8. Example Operating System(cont.)
Open Operating System
Linux
Unix
Multi-User/Multi-Tasking

9. Translator
!"#$% &'(ก* +, ก -.$*/ 0 1234 5'"+ !"#6!7 689 , :7;<,
-;$.== !"4:>?@(#&:-A#6 ,BC3
ก -#6!7 D$-.ก->4:>?@(#&:-ABE7'+C><5 > -F C$,1+ C3 ' !
BE&:+: G'7&'(.$*/ 0 4:>?@(#&:-A.$*+, #$% / 0 #4-H":+ก<:

10. Compiler
D U> ( +,)-) 5( B;3
+7 ก 0 ?>f ( 8(g37 ก 0@/?D U>7 ก 0D 9 ก@4?3)>
D0W: +A )0/0) 6 345AC)B(:3 <)3T/05 +? /(BAC)B(:389:[5?
(Object code) B)0) 1Dกi [ ?@4?[5? 9กD0W: ? 3ก) 8C)@/?+5D +)@>
ก) +A )0/0) [5?0)ก

11. Interpreter
D U> ( +,)-) 5( B;3
+AC)B(:3 ?>f ( 89:+ 8(5 +? &' ( 'AC)B(:389: +[5?8(>89
+? Y2 3 +AC )B(: 3@> 8( 5 < T[ /)ก09 6? Z' 5 +)5B)0) 1
ก?[6 +? Run < [5?8(>89
/(BAC)B(:389:[5?Y)กก) 0 +Z+[0<B)0) 1Dกi [ ?@4? 9ก[5?

12. ก Compiler Interpreter
Compiler Interpreter
1. +8(g37 ก 0 +? Y238C)3)> )0 1. +7 ก 089+ AC)B(:3 + 8C)3)> )0
AC)B(:3@>7 ก 0>(g> AC)B(:3>(g>8(>89
2. @4?D>Wg 89:@>/>< A )0YC)0)ก 2. @4?D>Wg 89:/>< A )0YC)>?
3. 09ก) B ?)3 Object7 ก0 3. [0<09ก) B ?)3 Object 7 ก0
4. 1?)7 ก 009ก) 8C)3)> > gC) 4. 1?)7 ก 009ก) 8C)3)> > gC)
DA W: 3Y >C) Object 7 ก 0[ @4?3)> Y ? 3 +AC)B(:3 gC) +? gC) 9ก 8C)@/?ก)
[5?D+ 75 [0< ? 3 + gC) 8C)@/?8C)3)> 8C)3)>4?)
[5?D i ก <)

13. Application Software
7 ก 089: Programmer D69 >62g>DW: @4?3)>5?)> <)3 T )0A )0 ? 3ก) 6 3
Z;?@4?Df) 3)>>(g> T DW: C)> A )0B 5 ก A )0 5D i + A )01;ก ? 3 09
0) V)>D59 ก( > Z;? @ 4? [ 0< YC ) D U > ? 3 ( 3/ ก? [ 67 ก 0 D0W: [5? 0 )
B)0) 1@4?3)>[5?8(>89
Special Purpose Software
09A )0D/0) B0ก( 3)>Df) 5?)> D4<> 7 ก 0BC)/ ( n)ก1 >D3'>
General Purpose Software
D U>7 ก 089: ก 0)BC)/ ( 3)>8(: T [

14. General Purpose Software
Electronic Spreadsheet
D4<> MS Excel, Lotus 1-2-3

15. Word Processing
MS Word, WordPad, Word Perfect

16. Presentation Software
MS PowerPoint

17. Database Management System : DBMS
MS Access, FoxPro, Oracle

18. Graphic Software
Adobe Photoshop, MS Paint

19. Desktop Publishing
Ms Publisher, Adobe PageMaker

20. Communication Software
MSN Messenger

21. Website Design Software
Ms frontpage, Macromedia Dreamweaver MX

22. Browser Software
Ms Internet Explorer, Opera, Firefox, Safari

23. Cmpression Software
WinZip, Winrar

24. Games Software
Solitaire, Pangya, Warcraf

25. Multimedia Software
Winamp, PowerDVD, Windows Media Player

26. Utilities Software
ScanDisk, Defragmenter, Backup

27. Programming Language
Low Level Languages
High Level Languages
Very High Level Languages
Object-oriented Languages
Natural Languages

28. Low Level Languages
Machine Language
) *ก ' ! / 4 (0 /* 1)
Assembly Language
/* ,/ก56# 0 /* 1 ก ก
1$ ( /* 7!ก!( + 5 ( ADD
ก / ! ก /+ 5 ก!( Assembler
0$ $ (0 ) " ก /+ 5
0$ ก ก

29. High Level Languages
(s>)DW: @/?0>- B)0) 1D6?)@Y@>AC)B(:3 <)3T 8C)@/?B 5 ก + D U> 'B @>ก)
&' ( '3)> >DA W: 3A 0' D 89: <)3ก(>[5?
Fortran Language
D/0) ก( 3)>8)35?)> '8 )u)B + AS' u)B 89:09ก) AC)> S0)กT
Cobol Language A = 10
D/0) ก( 3)>w ก'Y6>)5@/x<89:096? 0;+0)กT B = 20
BASIC Language If A > B Then
Pascal Language C = A+B
PRINT C
C Language Else
A-
C = A-B
Compiler + Interpreter PRINT C
End IF

30. Very High Level Languages
Object-oriented Language X OOP
Visual Basic Language
Java Language

31. Natural Language
C)> A )0B 5 ก@>ก) (s>)7 ก 0 D>W: 3Y)ก[0<YC)D U> ? 3
&' ( ' )0ก{ D 9 6 37A 3B ? )3,)-) ,)-)w 04) ' D U >
7 ก 0,)-)ก) D 9 ก5; 6? 0; + 89: >x) @/? Z;? @ 4? B )0) 1B< 3 A )0
? 3ก) D U>AC);56 3,)-)0>- 89:D U>7A 3B ?)36 3,)-) (3ก|-[5?

32. ก -#*H:ก,1/ 0 4:>?@(#&:-A
,)-)0) V)>89:@4?@> 3Aก)
A )0D/0) B0 + ASB0 ( '6 3,)-)>(g>T
ก) 8C)3)> < 0ก(>ก( 7 ก 0 W:>T
ก) 8C)3)> < 0ก( W:>T

33. Question ?