1. Computer History
How did we get here?

2. The First "Computers" People
Navigation tables, planetary positions, artillery tables First 3:00
3 minutes

3. Calculation Aides Tools to calculate with: Abacus Napier’s bones
Slide rule

4. Calculating Machines
Pascaline
1642 mechanical calculator
Gear driven

5. Binary Gottfried Leibniz Four function calculator
Advocated calculating with binary numbers

6. Weaving
Joseph Jacquard
1801 : power loom
Punch card driven patterns

7. Difference Engine Charles Babbage Ada Byron 1822
Difference engine : Steam powered calculator
Set the stage for IT overruns
Analytical Engine
Punch card programmable
Memory & Processing separate
Ada Byron
First programmer
(0-2:19)
5 minutes

8. Changing Society Herman Hollerith : Hollerith Desk
Built for 1890 Census
Read/Write storage
Census complete in 3 years
Founded company now known as IBM

9. Mark I 1944 First digital programmable computer WWII Firing tables
Mechanical
WWII Firing tables

10. First Bug
Grace Hopper
Programmer for Mark I
Designed first compiler

11. Electric Calculator Bombe & Colossus Built by Great Britain
Code breaking calculator
(0-2:20)

12. Electrical Computer
ENIAC: Electronic Numerical Integrator and Calculator
20x40 foot room
Programmed with patch cords and dials

13. Stored Programs
What differentiates a calculator from a computer?

14. Modern Era Starts 1st generation modern computers Manchester Baby
General purpose
Electronically stored program
Vacuum tube switches
Manchester Baby
First working stored program computer
EDVAC

15. Von Neumann
The Non Nuemann architecture:

16. Transistors Electronic switches Invented 1947
(0-6:16)
Skip 2:00 to 3:10

17. Modern Era
Second Gen : 1950’s & 60’s
Transistor based
Mainframe era

18. Modern Era Third Gen : 1960’s-1970
Integrated circuits
Monitors / Keyboards / Operating Systems

19. Apple Fourth Gen 1971+ PC as hobby – late 1970s Microprocessor
Altair & Apple I

20. PC Era
IBM PC
Highly successful personal computer
MS-DOS

21. Ubiquitous Computing Computers everywhere Highly Integrated Circuits
Phones, cars, DVRs, toys, etc…
Highly Integrated Circuits
Multiple parts of a computer on one chip

22. So Who Invented It?