fourconcepts - makes the processors faster cheaper smaller...

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CS101 Lecture 2 Four Important Concepts
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Concept 1: Computers are Stupid! Make you think they are smart by following directions really quickly.
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Concept 2: To be a computer a device must do four things. Input Information Input Devices Process Information Processor Output Information Output Devices Store Information Storage Devices
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Concept 3: Information needs to be in form of zeros and ones for a computer to process it. Information must be in the form of zeros and ones because the processor is make up of switches. Intel and Advanced Micro Devices are the two types of processors found in most personal computers Switches in processor have two states: On and Off Off = 0 On = 1
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Four Generation or Processors When they figure out how to make processors in a different way that
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Unformatted text preview: makes the processors faster, cheaper, smaller, and more reliable a new generation of processors is born. • First Generation 1939 –1944 – Vacuum tubes • Second Generation 1945 –1957 – Transistors • Third Generation 1958 – 1970 – Integrated Circuit • Forth Generation = 1971 -? – Silicon Microprocessor Under 70 years from. . • 18,000 switches in a room, failure every day, 120,000 watts, three computers in the world to • 810 million switches on a quad core chip, failures are rare, 65 watts, 13 computers in your car Concept 4: Information moving around a modern computer is in electrical form • Good – Electrical energy moves fast – Computers need to be fast • Bad – Lose power lose information...
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