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Category: History of Computers

Hp150 touchscreen (image courtesy Wikimedia Commons)

Computer Touch-Screen Technology Flashback to 1983: HP-150 from Hewlett-Packard

June 13, 2013February 15, 2016 History of Computers

Jumping a bit ahead on our History of Computers line of posts, I got so excited and just couldn’t wait to share this little

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apple debut video 1984

Apple Macintosh made public debut 29 year ago today.

January 22, 2013February 10, 2016 History of Computers

Today is another fun day in History of Computers: on January 22, 1998, Chiat/Day introduced The Apple Macintosh, the first consumer computer to popularize

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A photo of the Difference Engine constructed by the Science Museum based on the plans for Charles Babbage's Difference Engine No. 2. Photo by geni

1822 – Babbage designs a mechanical computer

January 8, 2013February 15, 2016 History of Computers

We continue our brief excursion in History of Computers. Next in line – Charles Babbage. Since 1812 Charles Babbage was seized by the idea

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Drawing of the mechanism of the 1822 Arithmometer

1820 – Arithmometer sees light as first mass-produced calculator

September 26, 2012February 15, 2016 History of Computers

In 1820 The Arithmometer (or Arithmomètre)  was the first mass-produced calculator invented by Charles Xavier Thomas de Colmar. It was  a mechanical calculator that in

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1801 – Jacquard invented an automatic loom controlled by punched cards

September 18, 2012February 10, 2016 History of Computers

We are continuing our History of Computers category with the Jacquard mechanical loom (that could be attached to a power loom or a hand

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1660-1670 Newton and Leibniz, founders of modern Calculus

August 14, 2012February 10, 2016 History of Computers 1

Infinitesimal calculus is the part of mathematics concerned with finding slope of curves, areas under curves, minima and maxima, and other geometric and analytic

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1642 – Pascaline takes a step closer to invention of computers

August 3, 2012February 10, 2016 History of Computers

Blaise Pascal, French mathematician and philosopher, is mostly know as the name behind a “Pascal’s Law”. While researching pressure of liquids, he explained principle

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1623 – Invention of Calculating Clock… Sort of

June 14, 2012February 11, 2016 History of Computers

Moving on with history of computing devices. In 1623, a Calculating Clock was first invented by Wilhelm Schickard. Wilhelm Schickard (22 April 1592 –

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slider ruler

1622 – New Development for Slide Rule

June 6, 2012February 11, 2016 History of Computers

Moving forward from Napier Rods and Napier’s contribution to calculating sticks based on the gelosia, or lattice, multiplication method. In 1620 Edmund Gunter of

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Napiers calculating tables

1614 – Invention of Napier’s Rods – Logarithms

May 5, 2012February 11, 2016 History of Computers

Our excurse into History of Computer continues with 1614 , when John Napier invented a system of moveable rods (Napier’s Rods) based on logarithms. This

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1492 Leonardo da Vinci – a star of technological ingenuity – Happy Birthday!

April 15, 2012February 10, 2016 History of Computers 1

What comes to your mind when you think of April 15th? How about a celebration of a great genius of all times Leonardo da

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antikythera

150 BC – Antikythera Mechanism

March 22, 2012February 11, 2016 History of Computers

This post continues our  Computer Systems History series. The Antikythera mechanism is one of the world’s oldest known geared devices, and it is widely

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725 AD – Mechanical Clock

March 19, 2012February 10, 2016 History of Computers

This post continues our  Computer Systems History series. Through most of the middle ages, technological advancement was almost at standstill. Before large mechanical clocks

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60 AD – Hydraulic Machine

March 19, 2012February 10, 2016 History of Computers

This post continues our  Computer Systems History series. Heron of Alexandria – a 1st century inventor, physicist and mathematician Heron (also know as Hero

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binary

300 BC – Binary System

March 13, 2012February 11, 2016 History of Computers

This post continues our  Computer Systems History series. A binary system is actually an astronomical term referring to two objects in space (usually stars,

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400 BC – Formal Language Theory

March 13, 2012February 11, 2016 History of Computers

This post continues our  Computer Systems History series. Formal language theory is crucial to the computers history, because formal language can be taught, understood

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2400 BC – Abacus

March 10, 2012February 11, 2016 History of Computers

This post begins our Computer Systems History series. The abacus, also called a counting frame, is a calculating tool – the first known calculator,

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