1. 1

2. Charles
Babbage
The First Automatic
Computing Engine:
The Difference Engine
2

3. 3

4. Konrad Zuse
The First Binary Digital Computer:
The Z1
4

5. 5

6. 1941 Fully Program-Operational Calculating Machine: The
Z3
1946 First Algorithmic Programming
Language:
Plankalkul
1950 The First Commercial Computer: The Z4 6

7. On January 1st
Hewlett Packard is Founded
David Packard
Bill Hewlett
7

8. The Atanasoff-Berry
Computer (ABC) is
completed.
8

9. 9

10. Tommy
The First Electric Programmable
Computer:
The Colossus
10

11. John
Mauchy
John P.
The First General Purpose Electronic Computer:
The ENIAC, “The Giant Brain”
11

12. 12

13. Jay
Forreste
r
RobertComputer
Scientist
Computer
Engineer
The First Digital
Computer:
The
Whirlwind
13

14. 14

15. 15
Gordon Moore Author of
On July 18th
Intel is Founded
Robert
Noyce
Mayor of
Silicon Valley

16. 16Bill
Paul
AllenOn April 4th
Microsoft is
Founded

17. 17
The First Portable Computer:
The IBM 5100

18. 18
On April 1st Apple
is Founded
Steve
Jobs

19. 19
Co-founders
Steve Jobs, Ronald Wayne, and Steve Woznia
Apple Computer Inc.

20. 20
The First Commercially
Successful Portable
Computer:
The Osborne
Adam
Osborne

21. 21
The First Mouse-
Driven Computer
with Graphic User
Interface:
The Macintosh

22. 22

23. 23
On May 3 Dell Computer is
Founded
Michael S.
Dell

24. 24
In 1960 approximately computers are used.
Today, over are in use.

25. 25