Hardware - Hardware HAdm 174 Business Computing Lecture...

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Hardware HAdm 174 – Business Computing
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Lecture Roadmap Using Computers/Security Digital Representation of Information Database Hardware Software Networks Internet / Web
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http://www.seas.upenn.edu/~museum/
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The abbreviated family tree 1804 1820 Babbage Jacquard Computer Concepts Illustrated . Accessed: 2-16-00. www.ualr.edu/~gblane/cpsc1370/presentations/History/History_files/v3_document.htm
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The Stored Program Concept John von Neumann (1903--1957)
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Digital Computer: Structure Control Unit Arithmetic  Logic   Unit Secondary  Storage System  Clock Primary  Storage Input Output
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The Motherboard Support Structure Transmit Signals
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The Microprocessor (CPU) Processes Information Control Unit Arithmetic  Logic   Unit
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Memory (RAM, ROM, Disks) Stores Information Secondary  Storage Primary  Storage
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What is “Memory”? Secondary  Storage Primary  Storage
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What is “Memory”? Secondary  Storage Primary  Storage
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What is “Memory”? Secondary  Storage Primary  Storage
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What is “Memory”? Secondary  Storage Primary  Storage
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What is “Memory”? Secondary  Storage Primary  Storage
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Memory in Use Secondary  Storage Primary  Storage
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Memory in Use Secondary  Storage Primary  Storage
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Memory in Use Secondary  Storage Primary  Storage
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The System Clock Pumps life through the body
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Input Devices Captures light Captures “feel” Captures sounds
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Output Devices Produces sound Produces graphics
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Digital Computer: Structure Control Unit Arithmetic  Logic   Unit Secondary  Storage System  Clock Primary  Storage Input Output
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Error Checking: Even Parity 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 0 1 0 0 1 0 1 0 0 0 1 0 1 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0 1 0 1 0 0 0 1 0 1 1 0 1 1 0 1 1 0 0 1 0 1 1 0 0 1 0 1 1 Send Parity Receive OK OK Error!
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Symbol Representation 8-Bit Code = 2 8 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 256 characters A B C D E F G H I J K ASCII Symbol 1 0 0 0 0 0 1 1 0 0 0 0 1 0 1 0 0 0 0 1 1 1 0 0 0 1 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 1 0 0 0 1 0 0 1 0 0 1 1 0 0 1 0 1 0 1 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0
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Numeric Representation 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 1 1 1 1 1 1 1 1 1 0 1 2 3 4 5 6 7 8 9 10 11 255
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Hexadecimal Representation 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 0 1 2 3 4 5 6 7 8 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 9 A B C D E F Bit Pattern Hex Bit Pattern Hex
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Hexadecimal Representation 1 0 1 1 B9 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 1 1 1 1 1 1 1 1 12 3C FF Just another way of representing bit patterns
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How much is that anyway? http://www.jamesshuggins.com/h/tek1/how_big.htm
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Binary Math: Addition Facts 0 0 0 + 1 0 1 + 0 1 1 + 1 1 10 +
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Math Operations 00111010 + 00011011 01010101
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This note was uploaded on 03/04/2008 for the course H ADM 174 taught by Professor Clark during the Fall '05 term at Cornell University (Engineering School).

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Hardware - Hardware HAdm 174 Business Computing Lecture...

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