The Early Days

1
Computing History

• The Early Days

2
Napiers bones

• In the early 1600s, a Scottish mathematician
  called John Napier invented a tool called
  Napier's Bones, which were multiplication tables
  inscribed on strips of wood or bone.

How did they work? http//www.cee.hw.ac.uk/greg/c
alculators/napier/simulation.html
3
Charles Babbage

• 1791 - 1871
• Inventor of the Difference Engine, which could be
  used to produce tables of information.
• Before this machine was finished, he had a better
  idea, for the Analytical Engine.
• It was never actually completed due to its cost
  and complexity.

4
Ada Byron - Lady Lovelace

• 1815 - 1852
• A partner of Babbage, she worked on his projects
  with him.
• A gifted mathematician, she made many valuable
  contributions to their work.
• She is regarded as the worlds first computer
  programmer.
• The programming language, Ada, is named after her.

5
Joseph-Marie Jacquard

• 1752-1834
• Inventor of the automatic loom.
• Used for weaving, it allowed complex patterns to
  be produced easily.
• Used punchcards to control the pattern woven by
  the loom.
• The punchcard idea was used later to store data
  in other machines.

6
Herman Hollerith

• 1860 - 1929
• Invented a machine used to process the data from
  the 1890 US census.
• It used punchcards to store the data for
  processing.
• Formed a company - the Tabulating Machine
  Company.
• Later became International Business Machines, or
  IBM.

7
Electronic Numerical Integrator and Computer

• ENIAC was the first high-speed electronic digital
  computer developed by William Mauchley.
• It filled a thirty-by-fifty foot room and weighed
  thirty tons.
• ENIAC was developed by John Mauchly and J.
  Presper Eckert during World War II.

8
John W. Mauchley

• 1907 - 1980
• He and J. Eckert invented the ENIAC computer.
• Started building the ENIAC in 1943 and completed
  it in 1946
• Mauchley worked on the overall design of the
  ENIAC, while Eckert worked on the circuitry.

9
John Von Neumann

• 1903-1957
• Von was the creator of the EDVAC.
• During and after WWII, Von Neumann was regarded
  as the best applied mathematician in the world.

10
Alan Turing

• 1912 - 1954
• Founder of computer science, mathematician,
  philosopher, codebreaker.
• Due to his codebreaking work, Turing was probably
  responsible for the Allies winning the war.
• Creator of the Turing Test for machine
  intelligence.

Try a Turing Test! - Talk to Eliza