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© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE History of Computers.

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Presentation on theme: "© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE History of Computers."— Presentation transcript:

1 © 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE History of Computers

2 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Is this a computer?

3 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE How about this?

4 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE What about this?

5 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Or this?

6 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Abacus Is a simple device to aid in calculating. This is an Inca Quipu.png 1 And a Roman Abacus 2 1 4th edition of the Meyers Konversationslexikon Reconstruction of a Roman Abacus, made by the RGZ Museum in Mainz, 1977

7 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPEAbacus Many countries still use Abacuses in day- to-day sales calculations

8 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Abacus Primarily used as a aid for addition and subtraction For more complex operations other tools are often used, such as slide rules

9 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Slide rule While the abacus was in use over 4000 years ago, the slide rule is a relatively modern device. William Oughtred invented the slide rule around 1622 AD

10 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Slide rule During the 1960s computers became a resource that engineers could use. The engineers who designed the SR-71 Blackbird still used slide rules on a daily basis.

11 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE The Blackbird set a coast-to-coast record time of 67 minutes 54 seconds.

12 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Mechanical computers

13 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Univac

14 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Modern Computer

15 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Vacuum Tubes

16 ©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPETransistor


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