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1. Georg Scheutz
R.SARASWATHI
SRI AKILANDESWARI WOMENS COLLEGE

2. GEORG SCHEUTZ
• Birth Date: 23.09.1785
– Co build the 1st commercial calculator
based on Babbage’s Difference Engine.

3. Georg Scheutz
• The Swede Pehr Georg Scheutz was a
remarkable man a lawyer, translator,
and inventor.
• he read a description of the
differential engine of Babbage.
• he decided to build such a machine

4. difference engine of Babbage
ALMAGEST
PTOLEMYS TABLES
ASTRONOMICAL TABLES
ALPHOSONE TABLE
ARITHMETIC / TRIGNOMENTRIC
TABLE

5. difference engine of Babbage
LOGARITHMS
OTHER AREA CALCULATION
TABLES
MECHANICAL CALCULATION
MACHINE

6. Charles Babbage
“… I was sitting in the rooms of the Analytical Society, at Cambridge,
my head leaning forward on the table in a kind of dreamy mood,
with a table of logarithms lying open before me. Another member,
coming into the room, and seeing me half asleep, called out, “Well,
Babbage, what are you dreaming about?” to which I replied “I am
thinking that all these tables” (pointing to the logarithms) “might be
calculated by machinery.”

7. difference engine
use of sliding rods, instead of the more
natural use of wheels in the adding
mechanism

8. difference engine
The machine produced correct results at
the rate of 33 digits per minute, so the
values were tabulated in two and a half
minutes.

9. difference engine
• The Astronomical Society received Babbage’s proposal
with the highest enthusiasm.
• A Difference Engine, a specialized calculating machine
for calculation of tables, using the method of
differences.

10. Georg Scheutz
The machine in question
– 1st—The Calculating unit
– 2nd—The Printing unit
– 3rd—The Numerator

11. Georg Scheutz
• The machine could handle numbers of
15 digits and tabulate functions with 4
orders of differences (the fourth being
constant) and print out results, rounded
off to eight digit.

12. THANK YOU