1. 1. Computer skills
2. 2. : : - . - . - .
3. 3. : 1-Hardware . 2-Software . 3-Users .
4. 4. .
5. 5. : 1- Mainframes , . . , ( )
6. 6. 2- Mini Computers . 3- ()Personal . IBM IBM.apple, Macintosh.
7. 7. 4- Laptops , . 5- Palmtop , notepad . .
8. 8. 6- Network Computers server clients. 7- Super Computers . .
9. 9. 1- CPU Box-system case CPU , . tower .desktop
10. 10. 2- Input Devices , . 3- Output Devices Monitor. 4- Peripherals .
11. 11.
12. 12. Central Processing Unit . microprocessor. , . .
13. 13. : 1- Arithmetic and Logic Unit . 2-Registers , ALU. , .
14. 14. 3- Control Unit . : - . - CPU - .
15. 15. Input Devices 1- Keyboard , Function Key. 2-Mouse , cursor -.
16. 16. 3- Track Ball , . .
17. 17. 4- Touch Pad , . 5- Touch Screen , . .
18. 18. 6- Light Pen . . .
19. 19. Digitizer .
20. 20. 7- Scanners . : FlatBed. SheetFed.
21. 21. HandHeld . Stationary Scanners . Drum Scanner .
22. 22. Optical Character Recognition (OCR) . OCR .
23. 23. 8- Joystick . . 9-Microphone .
24. 24. 10- Disk Drives .
25. 25. 11- Digital Camera , . 12- Video Camera .
26. 26. Output Devices 1- Video Display Unit Monitor . : - Cathode Ray Tube (CRT) , .
27. 27. - Flat Panel Display laptop, 5.0 , Liquid Crystal Display (LCD) .
28. 28. : 1.Color: CRT , Graphic Adapter. 2. Screen Size: 1517 1921 . 3. Resolution: Pixels , 640 480 Video Graphics Array (VGA), 800 600 Super VGA (SVGA) 768*1024 Extended VGA (XVGA).
29. 29. 2-LED Displays . , . 3-Printers , dot per inch (dpi). . :, , , .
30. 30. - Daisy Wheel , , .
31. 31. - Dot Matrix : . Print Head . .
32. 32. - Inkjet . . , .
33. 33. - Laser Printers , Toner . .
34. 34. 4-Plotters . , CAD.
35. 35. 5-Speakers . 6- Speech Synthesizers , .
36. 36. 7- Removable Media , : . 8- Projector .
37. 37.
38. 38. : ( .) : 1- RAM Random Access Memory , , . --, RAM , .
39. 39. 2- ROM Read Only Memory , , . 3- Cache Memory CPU 516.
40. 40. 4-Flash Memory ROM Blocks, Flash RAM . BIOS . .
41. 41. : , . , 0,1, bit Binary Digits. 8 , . 1,0 Bit 8 Byte 1024 Kilo Byte Mega Byte Giga Byte
42. 42. : RAM Chips, Cards, , 163264128. .
43. 43. Secondary Storage: RAM . . .
44. 44. ( :) 1- . , . , . , .
45. 45. 2- Hard Disk. , , . 3- Floppy Disk. 5.3, , 4.1, .
46. 46. 4- CD-ROM. , 650, ( ), . CD-R CD-RW. 5-Zip Drive. , .
47. 47. 6- Digital Versatile Disk. , , 4.7GB17GB. 7- Smart cards. , , . , ATM .
48. 48. : . Files , . . , , doc ,wave ,mov ,gif .
49. 49. : .1 Create, Name, Save .2 Copy, Move, Delete .3 Retrieve, Update .4 Display, Print .5 Execute .6 Upload Download
50. 50. .7 ExportImport .8 Compress .9 Protect
51. 51. Computer Performance: CPU , : 1- Clock Speed , , CPU . 500 1000.
52. 52. 2- Memory , . 3- Hard Disk , , .
53. 53. 4- Bus Speed , . 5- Graphics Acceleration CPU .
54. 54.
55. 55. 4-1 (program) (Software) (programmer)
56. 56. 4-2 (Computer Software) 1- (System Software) 2- (Application Software)
57. 57. 1- (System Software) : - (Programming language.) - (Compiler And Interpreters.) - (Operating Systems.)
58. 58. - (Programming language) (1) - . - : -Pascal -C++ -Java
59. 59. - (Programming language) (2) : 1. . 2. . 3. . 4. (Application Generators.) 5. .
60. 60. - (Compiler And Interpreters) : Source Code Object Code. : -: . -: .
61. 61. - (Operating Systems) (1) : . : - . - . - . - . - . .
62. 62. - (Operating Systems) (2) : - . - . - . - . - .
63. 63. 2- (Application Software) : . : - . - . - . - . - . . .
64. 64. 4-3 (Commercial Software.) (Shareware.) (Freeware.) (Public Domain Software.)
65. 65. 4-4 (Interfaces) : . Interfaces: - (Command Line Interface.) - (Graphical User Interface.)
66. 66. 4-5 (System Development) (Define Requirements.) (Assess feasibility.) (Analyze Cost.) (Development.) (Testing and fine-timing.) (Training the client.) (Handover to Client) (Monitor and maintaining)
67. 67. 4-6 : . : - . - ...
68. 68.
69. 69. 5-1 (Data Communications:) ( ) . (Computer Network.) : .
70. 70. 5-1 (Workgroup Computing:) - . - . - . - . - .
71. 71. 5-1 (Types of Network According to their Geographical Distance:) 1- Local Area Network-LAN: . 2- WANWide Area Network: .
72. 72. 1- Local Area Network- LAN (LAN:) - (Client Server Network:) (File Server) (Print Server) (Communication Server) (Dedicated Server.) - (Peer-To-Peer Network)
73. 73. 2- WANWide Area Network : -(HUB:) . -(Switcher:) . -(Routers:) . -(Gateway:) . -(Bridge:) . -(Repeaters:) . -(Multiplier:) .
74. 74. 5-2 1- (Star Network.) 2- (Ring Network.) 3- (Bus Network.)
75. 75. 5-3 1-(Modem DEModulate/MODulate) 2- (Network Interface Card) 3- (Transmission Media)
76. 76. 3- (Transmission Media) : . : - -
77. 77. 3- (Transmission Media) : - (Twisted Pairs:) . - (Coaxial:) . - (Fiber Optics:) .
78. 78. 3- (Transmission Media) : - . - . - .
79. 79. 5-4 : .
80. 80. 5-5 . HyperText. (WWW)World Wide Web
81. 81. 5-6 1- . 2-. 3- . 4- . 5- .
82. 82. 5-7 1- . 2- .
83. 83.
84. 84. 6-1 . 6-2 . 6-3 . 6-4 . - . -. -. - . - . - . -. -.