History of Computer

1. SEQUENCE
___ John Napier - logarithm
___ Blaise Pascal - Pascaline
___ Gottfried Leibnitz – Stepped reckoner
___ Herman Hollerith – Census Tabulating
Machine
___ Hindus – numbering system
___ Eckert & Mauchly – ENIAC & UNIVAC
___ Charles Babbage – Difference Engine
___ Howard Aiken – Mark I
___ Chinese - Abacus
Write the numbers on the blank to arrange
the events in order 1 - 9.
Copy and write your answer in ¼ sheet of
paper.

2. Hindus of India
-First numbering
system
1 to 9
100 -200 CE (COMMON ERA)
It is said that the first numbering system from 1
to 9 was invented.

3. Chinese -
ABACUS (first
adding
machine)
500 BCE
The first recorded adding machine was invented
by Babylonian (now IRAQ) which is then
popularized by the Chinese.

4. Logarithm
- Jhon Napier
- Father of
logarithm (title)
1614
John Napier, the father of logarithm introduced
the use of log in multiplication and division.

5. Blaise Pascal
-PASCALINE
( rotating wheel
calculator)
1642
It was then followed by the discovery of Pascaline,
a french mathematician.

6. Gottfried Leibnitz
- STEPPED
RECKONER
1671
A german mathematician invented a machine that
could multiply 5 – 12 digit numbers yielding up
to 16 digit numbers.

7. Charles Babbage
- Difference
Engine
- Father of
Modern
Computer
(title)
1821
Invented a steam-powered adding machine. This is the first
modern computer device that can automatically solve
math problems. He later developed the use of punch
cards and invented the analytical engine in order to
solve and print complex mathematical operations in
1832.

8. Herman Hollerith
- Census Tabulating
Machine
- Father of
Information
Processing (title)
1890
American commissioned by the US government
working on census preparation, has
successfully adopted the use of punch cards in

9. HOWARD AIKEN
-MARK I – 1st
stored program
computer
1942
A mathematician of Harvard University invented
the first stored program computer.

10. J.Presper
Eckert Jr. &
Jhon Mauchly
- ENIAC &
UNIVAC
1946 & 1951
Universal Automatic Calculator (UNIVAC
The ENIAC:
Electronic Numerical
Integrator and Computer
First electronic digital computer developed at the University of
Pennsylvania

11. 1951 - 1958
1ST
GENERATION
COMPUTER
Characterized by the use of vacuum tubes as the main logic
element and have the ability to store 1,000 – 4,000
characters with speed of 200 instructions per second.
ENIAC and UNIVAC is an example of this generation.

12. 1959 - 1963
2ND
GENERATION
COMPUTER
Are made up of a small, solid-state component designed to
monitor the flow of electric current called transistors. This
allows computers to communicate over telephone lines and
have the ability to store 4,000 to 320,000 characters and
could process one million instructions per second.

13. 1964 - 1974
3RD
GENERATION
COMPUTER
A new technology that uses a single chip that equates a
number of transistors and electronic circuits.

15. MATCH
C O L U M N A
1. Charles Babbage
2. Herman Hollerith
3. John Napier
4. Hindus
5. Chinese
6. Eckert & Mauchly
7. Howard Aiken
8. Blaise Pascal
9. Gottfried Leibnitz
C O L U M N B
a. Census
Tabulating
machine
b. ENIAC & UNIVAC
c. Pascaline
d. Difference engine
e. Stepped reckoner
f. 1- 9
g. logaritm
h.Abacus
i. Mark I
Column A with Column B. Write the letter
of the correct answer on your answer
sheet.

16. ENUMERATION
1 – 4 Enumerate the importance of computer education.
5 – 8 Give at least four kinds of computers traced on the
history.
Define the word computer. (7 pts.)
ESSAY
How do the different generations of computers differ from
one another. (6 pts.)

17. ASSIGNMENT
Visit some of the
computer shops in your
area. Make an
assessment of the type
of generation that
computers belong to.

18. THANK YOU.
BY : JEMAR A. SIASON