Page 7 - Computer - 6

1 1 Computer Language
Computer Language

Pre-Processing

• Early Calculating Devices • Evolution of Computers
• Computer Languages

In today’s technological world, computers are indispensible devices in our lives which help fulfil
everyday tasks. They are known for their speed, accuracy, diligence, high storage capacity, versatility,
and communication abilities. Computers have come a long way from simple calculating machines to the
powerful complex supercomputers.
Let us look at a brief history of the development of computers.

EARLY CALCULATING DEVICES
Abacus

Abacus was the first numerical calculator invented in China around 2600 B.C.
It performed simple addition, subtraction, multiplication, and division of
numbers. An Abacus consists of beads that can be moved on a series of sticks
within a wooden frame. Abacus

Napier’s Bones
Napier’s Bones was invented in 1617 by Scottish mathematician Sir John Napier. The
device was used to solve complex multiplication and division calculations easily. It
consisted of rods made from bones with numbers marked on them, hence the name
Napier’s Bones.

Napier’s Bones

Pascaline Calculator
Pascaline Calculator was developed in 1642 by a French mathematician
Blaise Pascal. It was made up of wheels, dials, and gears. It could solve
complex mathematical calculations involving large numbers. It is considered
to be the first mechanical calculator.
Pascaline Calculator

Difference Engine
Difference Engine was invented in 1822 by Charles Babbage. This device was made
from mechanical parts. It could perform tabular calculations.

Difference Engine

5