The Discipline of Computing
Evolution Computing Machine
Abacus
Napier’s bones
Pascaline
Leibniz’s calculator
Jacquard’s loom
Difference engine
Analytical engine
Hollerith’s machine
Mark-I
Abacus
Abacus was discovered by the Mesopotamians
around 3000 BC.
The word ‘abacus’ means calculating board.
An abacus consisted of beads on movable rods divided in
to two parts.
, The abacus is also called a counting frame, a
calculating tool for performing arithmetic operations
The abacus works on the basis of the place value
system
Abacus
Napier’s bones
John Napier’s was a mathematician who devised a
set of numbering rods known as Napier’s bones
Multiplication problem could be easily performed.
These numbered rods could perform multiplication
of any number by a number in the range of 2-9.
Evolution Computing Machine
Abacus
Napier’s bones
Pascaline
Leibniz’s calculator
Jacquard’s loom
Difference engine
Analytical engine
Hollerith’s machine
Mark-I
Abacus
Abacus was discovered by the Mesopotamians
around 3000 BC.
The word ‘abacus’ means calculating board.
An abacus consisted of beads on movable rods divided in
to two parts.
, The abacus is also called a counting frame, a
calculating tool for performing arithmetic operations
The abacus works on the basis of the place value
system
Abacus
Napier’s bones
John Napier’s was a mathematician who devised a
set of numbering rods known as Napier’s bones
Multiplication problem could be easily performed.
These numbered rods could perform multiplication
of any number by a number in the range of 2-9.
