1. History of Computers

2. Why do we use base 10?

3. Abacus
China
3000 BC

4. Adding Machine
Blase Pascal
1642
Invented as a teenager
Built 20

5. The Difference Engine Charles Babbage England 1833 Steam powered
Lacked funding to complete the device

6. Office Technology 1850 - 1900 What was a bank like in 1850 ?
They has lots of “Computers”.

7. Electricity Distribution
Thomas Edison
Incandescent Light
1882 NYC distribution
“Con Edison” still powers NYC

8. Typewriter 1874 Remington – (Gun Manufacturer) Bridgeport, CN
Why QWERTY?

9. Cash Register
1880
John & James Ritty
Dayton, Ohio

10. Adding Machine
1885
William Borroughs
St. Louis, Mo

11. Programmable Punched Card Processing Machine
Herman Hollerith
US Census of 1890
tallied the U.S. Census in 6 weeks (as opposed to 7-10 years).

12. Communication

13. Telegraph 1844 Samuel Morse Washington to Baltimore
“What hath God wrought?"

14. Telephone
1875
Alexander Graham Bell, Scottish
Boston University

15. ENIAC – first electronic computer
1944
weighed 30 tons
calculate artillery fire
drew enough energy to dim the lights of Philadelphia when it was run
operated at 5000 instructions per second

16. I.B.M. 1924 – International Business Machines New York
Thomas J. Watson, Sr. instilled a strict, professional demeanor in his workers.
spectacular success with its tabulating machines and the punch cards

17. I.B.M. launched its computer business in 1953
hired scientists leaving US war effort
controlled 90% of computer industry thru 1970’s

18. Famous Quotes
I think there is a world market for maybe five computers.   -- Thomas Watson, chairman of IBM, 1943
Computers in the future may weigh no more than 1.5 tons.   -- Popular Mechanics, 1949

19. Triumph of the Nerds