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By: Ryan Period 4 th. When the computer was invented?  The real question is what is the definition of the computer. Because there are many different.

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Presentation on theme: "By: Ryan Period 4 th. When the computer was invented?  The real question is what is the definition of the computer. Because there are many different."— Presentation transcript:

1 By: Ryan Period 4 th

2 When the computer was invented?  The real question is what is the definition of the computer. Because there are many different kind of computers that have been invented since 35,000 BC.

3 The Inventors  The first digital computer was invented in 1939, by John V. Atanasoff and Clifford Berry at Iowa State University.

4 Debug???  Grace Murray Hopper was working on her machines and was having trouble on it and they found a moth in her computer so they called it a Computer Bug. So word got out that they “debugged” a computer.

5 The Internet  The internet was started by Lawrence Roberts.  It was was started for people to share ideas and papers through one source.  It was started in 1968.

6 Babbage’s Analytical Engine  When was it made? In  Who made it? Charles Babbage  What did it look like? It was supposed to be a huge brass, steam powered computer.

7 Herman Hollerith’s Tabulating Machine  Why was it invented?  It was invented to tabulate census data more efficiently than by traditional hand methods.

8 ENIAC?  What is it? It was used for the military to calculate artillery-firing-tables and for settings used for different weapons under varied conditions for target accuracy.  Where was it built? The University of Pennsylvania.

9 Program  To insert or encode specific operating instructions into a machine or apparatus.

10 Transistor replacing vacuum tubes  Smaller size (despite continuing miniaturization of vacuum tubes)  Highly automated manufactureLower cost (in volume production)  Lower possible operating voltagesOperation without a warm-up period (most vacuum tubes need 10 to 60 seconds to "warm up")  Lower power dissipation (no heater power, very low saturation voltage)  Higher reliability and greater ruggedness to physical shocks (although vacuum tubes are more resistant to nuclear electromagnetic pulses)

11 First Microcomputer  It was invented by Ed Roberts  It was produced by the Micro Instrumentation and Telemetry Systems.

12 Binary System  Bits-A bit or binary digit is the basic unit of information in computing and telecommunications; it is the amount of information that can be stored by a digital device or other physical system that can usually exist in only two distinct states.  Bytes-a unit of digital information in computing and telecommunications.

13 Resource Listing      


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