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The document outlines the history of computers, starting with the abacus as the first non-electric computing tool. It highlights key inventions such as Napier's Bone, Pascaline, and the contributions of Charles Babbage, including the Difference Engine and Analytical Engine. The summary concludes with the development of the Mark 1 and ENIAC, leading to the Osborne 1 as the first portable computer.

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Yuson Hebrix
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15 views22 pages

Inbound 8973074897236976327

The document outlines the history of computers, starting with the abacus as the first non-electric computing tool. It highlights key inventions such as Napier's Bone, Pascaline, and the contributions of Charles Babbage, including the Difference Engine and Analytical Engine. The summary concludes with the development of the Mark 1 and ENIAC, leading to the Osborne 1 as the first portable computer.

Uploaded by

Yuson Hebrix
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© © All Rights Reserved
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HISTORY OF

COMPUTER
ABACUS
ABACUS
• Believed to be the first non-electric
computer.
• A calculation tool used by sliding
counters along rods or grooves, used to
perform mathematical functions.
• Invented in ancient times to help count
large numbers.
NAPIER’S BONE
NAPIER’S BONE
• A manually-operated calculating device.
• Created by John Napier of Merchiston,
Scotland.
• Also called Napier’s rods, can be used to
perform multiplication of any number
by an number 2-9.
PASCALINE
PASCALINE
• The world’s first mechanical and
automatic calculator.
• Invented by the French mathematician-
philosopher Blaise Pascal between 1642-
1644.
• This calculator could only do addition
and subtraction.
LEIBNIZ WHEEL
LEIBNIZ WHEEL
• A digital mechanical calculator.
• Invented by German mathematician
philosopher named Gottfried Wilhelm
Leibniz.
• Improved version of Pascal’s invention.
• Also known as the first true four-
function calculator.
CHARLES BABBAGE
CHARLES BABBAGE
• The father of computing.
• Born in Walworth, Surrey, on December
26, 1791.
• English polymath, Mathematician,
philosopher, mechanical engineer and
inventor.
CHARLES BABBAGE
• Invented the first computer that
resembled the modern machines we see
today.
• A computer is a machine that can think
and calculate on its own.
• Envisioned a machine with an input and
output device, storage, and processor.
DIFFERENCE ENGINE
DIFFERENCE ENGINE
• Invented by Charles Babbage in the
early 1820’s.
• A mechanical computer that could do
basic computations.
• A steamed driven calculating machine
designed to solve tables of numbers like
logarithm tables.
ANALYTICAL ENGINE
ANALYTICAL ENGINE
• In 1830, Charles Babbage invented
another calculating machine.
• Mechanical computer that took input
from punch cards.
• Capable of solving and storing data in
an indefinite memory.
MARK 1
MARK 1
• Invented by Howard Aiken in 1937.
• Could conduct massive calculations
using enormous numbers.
• Constructed as a collaboration between
IBM and Harvard in 1944.
• Helped the military by computing tables
for the design of equipment.
ENIAC
• Electronic Numerical Integrator and
Computer
• Built during World War II by the United
States and completed in 1946.
• Invented by John Mauchly and J. Presper
Eckert of University of Pennsylvania.
ENIAC
Osborne 1
• The first truly portable computer and
was recognized as the first laptop
computer.
• Developed by Adam Osborne.
• Includes a monitor, disk drives and all
components except a battery.
Osborne 1

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