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1. COMPUTER
HISTORY®
By: Jake M. Mauleon 

2. ABACUS

4. •500 BC the Abacus or
the suan pan was the
first mechanical
computing device
which are used by the
Chinese.

5. •The Abacus was used as
an ancient calculator. It
helped businesses to
perform mathematical
calculations without
using pen and paper

6. •Made up of rods of
sliding beads mounted
on a frame.
•Considered as the first
computer.

7. Napier’s Bones

9. •1550 – The Napier’s
Bones was developed
by John Napier.
•John Napier – known
as the discoverer of
logarithms.

10. Slide Rule

12. •1600 also known
as slipstick
•Invented by
William Oughtred.

13. •It is used primarily
for multiplication
and division, and
also for scientific
functions.

14. PASCALINE

15. •1642
•Invented by Blaise
Pascal
•Also called as
numerical wheel
calculator

16. •Could add,
subtract and
handle numbers
up to 999,999.999

17. LEIBNIZ CALCULATOR

18. •1673
•(also called as the Step
Reckoner)
•Gottfried Wilhelm Leibniz
•Addition, subtraction,
multiplication, and division

19. JACQUARD’S
LOOM

21. •1804
•Joseph Marie
Jacquard
•Simplifies the process
of manufacturing
textile fabrics

22. ARITHMOMETER

23. •1820
•Charles Xavier Thomas
de Colmar
•A machine capable of
performing the four
basic math operations

24. in a simple and reliable
way.
•First digital mechanical
calculator

25. DIFFERENCE ENGINE

26. •1822
•Invented by Charles
Babbage
•British Mathematician
/inventor

27. •Can perform
calculations and print
results.
•Babbage spent ten
years working on the
difference engine,

28. •But in the end, he was
forced to abandon it
because of lack of
funds.

29. ANALYTICAL ENGINE

30. •1833
•Invented by Charles
Babbage/
•Lady Ada Augusta Byron
•Known as the first lady
computer programmer

31. •Can solve Mathematical
Problems and Store
information

32. •1884
•Invented by Herman
Hollerith
•the machine was
developed to help process
data for the U.S. Census
TABULATING MACHINE