I want to participate in the weekly slide share competition.!!!!!!!

1. IN THE NAME OF ALLAH

2. IT (Information Technology) PREPARED BY: ALAADDIN IBRAHIMY

3. The Information Technology Association of America has defined Information Technology (IT) as "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." What is IT?

4. IT ( information technology ) is divided into 4periods:- Premechanical ( age:- 3000 BC – 1450 AD ) Mechanical ( age:- 1450 – 1840 ) Electromechanical ( age:- 1840 – 1940 ) Electronic ( age:- 1940 – Present ) History of IT

5. The first CALCULATORS: The ABACUS, one of the very first information processors 1) Premechanical age:

6. SLIDE RULE : Slide Rule is an early example of analog computer. 2) Mechanical age :

7. Blasé Pascal: Blasé Pascal was the first one, who invented the first mechanical machine, which was called PASCALINE ( the Pascal machine) And he worked on it from 1623 – 1662.

8. Pascaline: The Pascaline front The Pascaline rear view

9. Charles Babbage: The first computer designer and father of computer. Augusta Ada Byron: The first programmer of computer.

10. Herman Hollerith and IBM: Early punch card was invented by the Herman Hollerith and IBM ( International Business Machines Corporation ) 3) Electromechanical age:

11. Electronic Numerical Integrator and Computer (ENIAC): The First High-Speed , General-Purpose Computer Using Vacuum Tubes 4) The Electronic Age:

12. Universal Automatic Computer (UNIVAC): The First General-Purpose Computer for Commercial Use.

13. What is Computer? Computer is an electronic device that can interpret and execute programmed commands for input, process out put, computation and logic operations. Computer may be technically complex, but they are conceptually simple.

14. Types Of Computers A) According to SIZE: Main frame computers Mini computers Super computers Micro(pc) computers B) According to FUNCTION: Analog Computers Digital Computers Hybrid Computers

15. A) According to SIZE: Main frame computers: are the biggest computers and mostly used by ministries and very big companies.

16. 2) Mini computers: Mini computers are medium size and are used in companies.

17. 3) Super computer: Super computers are the most expensive ,powerful and fast computers that is mostly used in insurance companies and banks.

18. 4) Micro computers

19. a) Desk top computers:

20. b) Lap top computers:

21. c) PDA(personal digital assistance):

22. Computer parts:- Computer is made of 15 - 25 parts.

23. 1) Mother board

24. 2) CPU (central processing unit)

25. 3) HDD(Hard Disc Drive) External HDD Internal HDD NOTE: InternalHard disc is divided in 3 parts.

26. a) PATA HDD Its capacity is 40 – 80 GB, and its platter turning speed is 3600 – 7200 GHZ per second.

27. b) SATA HDD Its capacity is 40 – 250 GB, and its platter turning speed is 8000 – 12000 GHZ per second.

28. C) Scazi HDD Its capacity is 40 – 2000 GB, and its platter turning speed is 15000 – 21000 GHZ per second. And it is mostly used for the Server computers.

29. 4) RAM(Random Acces Memory)

30. a) SD RAM

31. b)RD RAM

32. C) DDR RAM DDR1 DDR2 DDR3

33. 5) Floppy and Floppy Drive Floppy disk Floppy room

34. Flashes are the new and modern type of memories that store a specific amount of data. 6) USB Flash

35. 7) CD( Campact disc)and DVD(Digital video disc) Room

36. 8) Monitor

37. a) LCD(liquid Crystal Display)Monitors

38. b) CRT( Cathod Ray Tube ) monitor

39. 9) Keyboard Simple keyboards Multimedia keyboards Wireless keyboards

40. 10) Mouse

41. 11) Printer

42. 12) Scanner

43. 13) Webcame

44. 14) Modem External modem Internal modem

45. 15) LAN(Local Area Network) Card We use LAN card to connect Two or more computers together. (networking)

46. 16) Sound Card We use this for the programs that mostly need sound like media players.

47. 17) TV Card We use TV Card to have the TV channels in our computer and also we can Record the TV programs from the TV card.

48. 18) Capture Card Capture Card is to change the DVD and MP4 clips to CD.

49. 20) Case

50. 19) Power Supply Power Supply is the electricity main source which get the 220V electricity and change it to 12V and send it other devices.

51. THE END THANK YOU VERY MUCH FOR LISTENING!!! Spring (1390 – 2011)