2. Anthony J. Nowakowski, Ph.D. Computer Literacy

3. Computer Literacy Brought to you by...

4. Anthony J. Nowakowski, Ph.D. Computer Literacy “The first electronic digital computer built in the United States, ENIAC, was unveiled at the University of Penn- sylvania in 1946. It weighed 30 tons, filled the space of a two-car garage, and contained 18,000 vacuum tubes, which failed on average at the rate of one every seven minutes. It cost half a million dollars in 1946 prices.

5. Anthony J. Nowakowski, Ph.D. Computer Literacy Today, the same amount of computing power is contained in a pea-size silicon chip. Almost any home computer costing as little as $100 can outper- form ENIAC. Put another way, if the automobile and airplane businesses had developed like the computer business,

6. Anthony J. Nowakowski, Ph.D. Computer Literacy a Rolls Royce would cost $2.75 and run for 3 million miles on one gallon of gas. And a Boeing 767 would cost just $500 and circle the globe in twenty minutes on five gallons of gas.” Tom Forester, ed. The Information Technology Revolution (Cambridge, MA: MIT Press, 1985)

7. Anthony J. Nowakowski, Ph.D. Computer Literacy Uses for Computers

8. Anthony J. Nowakowski, Ph.D. GENERAL PURPOSE Word processing Spreadsheets Databases Graphics Communication Education Entertainment SPECIAL PURPOSE Watches Telephones Appliances Traffic Signals Automobiles Airplanes Instruments Computer Literacy

9. Anthony J. Nowakowski, Ph.D. Computer Literacy Operating Systems

10. Anthony J. Nowakowski, Ph.D. MS-DOS Windows 95 Windows NT SYSTEM 8 VAX/VMS UNIX Computer Literacy Functions of an Operating System 4 4 Provide an interface between the user and the computer 4 4 Manage data and files and provide security to multiple users 4 4 Execute other computer programs 4 4 Manage peripheral devices such as printers, modems, disk drives, scanners, etc.

11. Anthony J. Nowakowski, Ph.D. Computer Literacy Hardware Windows95 OS Application Word

12. Anthony J. Nowakowski, Ph.D. Computer Literacy Hardware

13. Anthony J. Nowakowski, Ph.D. Computer Literacy Computer Components Input Output Processor Memory Secondary Storage

14. Anthony J. Nowakowski, Ph.D. Computer Literacy Computer Components Input Output Processor Memory Secondary Storage

15. Anthony J. Nowakowski, Ph.D. Antenna CD player Turntable SpeakersHeadphones Amplifier Tape deck Computer Literacy Stereo System

16. Anthony J. Nowakowski, Ph.D. Computer Literacy Computer System KeyboardMouse Floppy disk Hard drive Monitor Tape backup CPU CD-ROM/DVD Printer CD-R/CD-W

17. Anthony J. Nowakowski, Ph.D. Computer Literacy Serial vs. Parallel Connections

18. Anthony J. Nowakowski, Ph.D. Parallel 0100000101000001 RECEIVERRECEIVER SENDERSENDER Computer Literacy A is represented by 01000001

19. Anthony J. Nowakowski, Ph.D. 0 1 0 0 0 0 0 1 RECEIVERRECEIVER SENDERSENDER Parallel Computer Literacy A is represented by 01000001

20. Anthony J. Nowakowski, Ph.D. Parallel 0100000101000001 A is represented by 01000001 RECEIVERRECEIVER SENDERSENDER Computer Literacy

21. Anthony J. Nowakowski, Ph.D. A is represented by 01000001 RECEIVERRECEIVER SENDERSENDER 0100000101000001 Serial Computer Literacy

22. Anthony J. Nowakowski, Ph.D. Serial A is represented by 01000001 RECEIVERRECEIVER SENDERSENDER 10000011000001 0 Computer Literacy

23. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 10000011000001 0 Computer Literacy A is represented by 01000001

24. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 000001000001 1 0 Computer Literacy A is represented by 01000001

25. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 000001000001 0101 Computer Literacy A is represented by 01000001

26. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 0000100001 0 0101 Computer Literacy A is represented by 01000001

27. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 0000100001 010010 Computer Literacy A is represented by 01000001

28. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 00010001 0 010010 Computer Literacy A is represented by 01000001

29. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 00010001 01000100 Computer Literacy A is represented by 01000001

30. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 001001 01000100 0 Computer Literacy A is represented by 01000001

31. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 001001 0100001000 Computer Literacy A is represented by 01000001

32. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 0101 0100001000 0 Computer Literacy A is represented by 01000001

33. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 0101 010000010000 Computer Literacy A is represented by 01000001

34. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 1 0 010000010000 Computer Literacy A is represented by 01000001

35. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 1 01000000100000 Computer Literacy A is represented by 01000001

36. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 01000000100000 1 Computer Literacy A is represented by 01000001

37. Anthony J. Nowakowski, Ph.D. Serial RECEIVERRECEIVER SENDERSENDER 0100000101000001 Computer Literacy A is represented by 01000001

38. Anthony J. Nowakowski, Ph.D. Computer Literacy This section is finished