1. Questions How Familiar are you with your computer?

2. Familiar with your computer? Processor Speed? RAM size? Hard Drive size? ?-Bit Processor

3. Familiar with computer? Cont’d 20 Mb Presentation, will it fit on a floppy? How do I know? What will it fit on?

4. Computer Basics

5. The three B’s Binary Bits Bytes %$&*!!! B inary B its B ytes %$&*!!!

6. Binary Literally “2 numbers” Base 2 Computers: “0” & “1” Off = “0” On = “1”

7. Bits Binary Digits called “Bits” No. of digits = No. of Bits Eg. 8 digits = 8 Bits 01001101

8. Bits to Bytes 8 Bits = 1 Byte Number below is: “8 Bits” OR “1 Byte” 01001101

9. Bytes get Big Many bytes of data Lowest level – thousands Normal level – millions Large files – billions

10. Byte Abbreviations Thousands = = kilo Millions = = mega Billions = = giga

11. Practical Bits 4-Bit color = 16 colors 8-Bit color = 256 colors 24-Bit color = 16 M colors

12. How large is a Picture? 8” x 10” Picture –80 in 2 300 DPI resolution –90,000 pixels in 2 Millions of colors –24 bits/pixel Total file size 20.6 Mb

13. How large is a Picture? Calculations

15. Practical Bytes Memory -- Mb (mega ) Disk Storage -- Mb & Gb (mega & giga)

16. Review 3 B’s Binary = base 2 Bit = No. of digits Byte = 1, 8-Bit No.

17. Computer Components CPU Display Keyboard & Mouse Drives Printers

18. CPU Central Processing Unit –Main Brain –Processor Speed MHz –Physical Memory –RAM in Mb

19. Display Monitor/TV Projector

20. Keyboard & Mouse Inputting Data Talking to Computer

21. Drives Storage Devices Hard Drives Floppy Drives CD Roms

22. Printers Output Devices Dot Matrix Ink Jet Laser

23. Review Components CPU = Brain Display = Monitor Keyboard/Mouse = input Drives = Storage Printers = hardcopy output

25. Introduction to the Internet

26. A Short History... Started Late 60s Department of Defense Advanced Research Projects Agency (ARPANET) –Protect Military Communications

27. A Short History Cont’d 70s - 80s Research/Universities Use to Share Data 1989 Web was Born

28. Types of Services World Wide Web (WWW) Electronic Mail Newsgroups Telnet File Transfer Protocol (FTP) Gophers

29. Getting on Internet Begins with HOST –Internet provider = ACCESS Eg.American Online; MCI etc. Colleges often provide student Once online, you “Navigate” web.

30. Web Browsers Browsers: Netscape Navigator, MS Internet Explorer. –Provide graphical access to Navigating. Start with Uniform Resource Locator -- address

31. URLs http:// Hypertext Transport Protocol ftp:// File Transfer Protocol news: Usenet (newsgroups) telnet:// telnet gopher://

32. Top-Level Domains com Commercial Organization org Nonprofit organization gov Government agency edu Educational institution mil Military installation

33. Using E-Mail Available on Internet Provider Free E- Mail with Web access –Hotmail, Rocketmail, Yahoomail Free w/no access via Juno.com.