Counting on fingers was one of the earliest ways for people to represent and communicate numbers, by displaying quantities on hands. The abacus was then developed as the first calculating machine over 5,000 years ago in China, using a wooden frame with movable beads to perform arithmetic. Later inventions included Pascal's arithmetic machine in 1642 and Babbage's analytical engine in the 1830s, both attempting to mechanize mathematical calculations, before the development of tabulating machines in the late 19th century that could count populations.

1. Nabia 4z
Scarsdale International School

2. Counting on fingers
 Since the earliest times people used their to show ‘how many’. Thus
they put tell the numbers of animals they have killed on a hunt. They
cloud show the number of people living in a dwelling. It was easy to
show large numbers in groups of t.en by holding up both hands

3. The abacus
 The abacus was the first calculating machine . It was develop by the
chines 5ooo years ago. It was built out of wood and beads. IT cloud
be held and carried around easily . The abacus was so successful that
It’s use spread from china to other country .

4. Napier’s Bones

5. Pascal’s Arithmetic Machine
 Some years later in 1642 a young French Mathematician
named Blaise Pascal was working in his fathers and he
invented Pascal Arithmetic Machine.

6. Babbage engine
The first calculating machine that can be truly called a
computer was invented in England by Charles Babbage
in 1985.

7. Tabulating machine
This machine was make to count the population of
people .