1. Agenda Course Introduction Video Typing for 20 minutes Copy portable software to your disk Typing Quiz History of computers c++ java, python, html, php,

2. First Computers (~1940) For military, research, government Big (size of one room) Can only do ONE thing at a time Need people to switch parts

3. ENIAC: the first computer 20 ft x 40 ft (6 m x 12 m) 30 tons(30,000 kg)

4. Inventions that changed the computer Vacuum tubestotransistors (1947) What it does: Controls electron flow in a circuit like a switch or diode Much SMALLER!

5. ENIAC 19,000 vacuum tubes –If one is broken the whole thing doesn’t work –Not reliable –This man is checking where is the broken tube one by one….

6. Inventions that changed the computer Machine language 1001010101 to FORTRAN programming language (1954) x = 13; Answer = 2*x + 3;

7. Inventions that changed the computer Semiconductors (1958) –Silicon chips –Put an entire circuit of 100’s of transistors into one piece of silicon –Now: 1000000 transistors!

8. Inventions that changed the computer First Computer Game (1962) –First time the computer was not just used to make calculations Spacewar Tic-tac-toe Chess

9. Inventions that changed the computer Mouse (1964) –Lets anybody use a computer (not just the computer specialist)

10. Inventions that changed the computer Punch CardstoDisks (1970) Used for storing or saving info

11. Inventions that changed the computer 1973 – networking, Internet “ARPANET” –Advanced Research Projects Agency Network 1975 – first computers sold to the public

12. Inventions that changed the computer 1973 – networking, Internet “ARPANET” –Advanced Research Projects Agency Network 1975 – first computers sold to the public

13. Inventions that changed the computer 1973 – networking, Internet “ARPANET” –Advanced Research Projects Agency Network 1975 – first computers sold to the public

14. Inventions that changed the computer 1979 – spreadsheets and word processor –Good for business 1980’s – Operating Systems (OS) –MS-DOS (MicroSoft Disk Operating System)

15. Inventions that changed the computer 1990’s –Windows 3.1, 95, 98 –Fibre optic network (internet for everyone) Email – BIG CHANGE to communications Web browsers (Mosaic 1993, Netscape Search engines (Yahoo, Lycos, Altavista 1994, Google 1998) because internet getting too big E-commerce (Amazon, e-bay) –Better CPU’s, audio/video players, etc

16. Inventions that changed the computer 2000’s –Dot com bubble burst $ -5,000,000,000 lost in stock market –More websites (Wikipedia 2001, YouTube 2005, MySpace 2003 – 2 yrs $580 Million) –More viruses –Handheld computers (Ipod, Iphone, Laptops) –WIFI

17. Summary Computers only became popular in the last 30 years Internet only became popular in the last 15 years FAST rate of change and growth What will come next?!?!

18. What will come next? Faster More storage Smaller, lighter Cheaper Easier connections (computer, TV, cellphone, camera, car, etc)

19. Assignment Write about the first (or the oldest) computer you used. –When? Where? –What did you use it for? –Who taught you? –How did you feel? ––What do you foresee to happen in computer technology? Submit Assignment here http://172.16.22.74/ Assignment Name: Name Computer History http://172.16.22.74/

20. Assignments(20%) Each journal entry will be graded by: –Use new words (related to course content) –Shows depth of thought, insight, details Shows evidence of learning Personal stories –English is clear and correct –Format is correct