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บทที่ 1. ความรู้เบื้องต้นเกี่ยวกับคอมพิวเตอร์. ความหมายของคอมพิวเตอร์.

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บทที่ 1

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Computare .. 2525 ""


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  • 5,000


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  • 2,600 (Abacus)


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  • .. 2158 John Napier Napier's Bones


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  • .. 2185 Blaise Pascal


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  • .. 2216 Gottfried Wilhelm Baronvon Leibnitz (Binary Number)


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  • .. 2344 Joseph Marie Jacquard (Program)


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  • .. 2373 Charles Babbage (Difference Engine) (Analytical Engine)


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  • 4

    • 1.

    • 2.

    • 3.

    • 4.

      Charles Babbage " "


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  • .. 2385 Lady Augusta Ada Byron Analytical Engine Loop


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  • .. 2397 George Boole (Boolean Algebra)


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  • .. 2423 Dr. Herman Hollerith


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  • .. 2480 Howard Aiken MARK I IBM Automatic Sequence Controlled Calculator


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  • .. 2486 2 12 . 1 John W. Mauchly Persper Eckert ENIAC (Electronic Numerical Intergrater and Calculator) .. 2489 18,000


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  • .. 2492 Dr. John Von Neumann EDVAC (Electronic Discrete Variable Automatic Computer) 2494 EDVAC EDSAC (Electronic Delay Storage Automatic Calculator) EDVAC UNIVAC I (Universal Automatic Calculator)


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  • 1


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  • 2


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  • 3 (IC : Intergrated Circuit)


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  • 4

    (VLSI : Very Large Scale Integrated)


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    • (Analog Computer)

    • (Digital Computer)

    • (Special-Purpose Computer)

    • (General-Purpose Computer)


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    • (Micro Computers)

      • Desktop, Laptop, Notebook

      • Handheld Computer Palmtop ,Tablet ,Smart Phone

    • (Workstations)

    • (Mini Computers)

    • (Mainframe Computers)

    • (Super Computers)


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3

  • (Peopleware)

  • (Hardware)

  • (Software)

    • System Program

    • Application Program


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  • (CPU : Central Processing Unit)

    • (Control Unit)

    • (ALU :Arithmetic Logic Unit)

    • Register

  • (Input Unit)

  • (Output Unit)

  • (Memory Unit)

    • (Primary memory : Main memory)

    • (Secondary memory : Storage)


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  • ROM (Read Only Memory)

  • RAM (Random Access Memory


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  • 0 1 (Bit) Binary Digit 8 1 (Byte) 1 1 (Address number) KB (Kilobyte) MB (Megabyte) GB (Gigabyte) IBM 128 Mb 128*1,024*1,024

    • ( 1 Kilobyte= 210 = 1,024 bytes)

    • ( 1 Megabyte = 210 * 210 = 1,048,576 bytes)

    • ( 1 Gigabyte= 210 * 210 * 210= 1,073,741,824 bytes)


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  • (System Program)

    • Windows, Linux, UNIX, iOS, Android

    • Control Panel, Disk Defragment, Disk Cleanup, Windows Registry

    • Compiler Interpreter

      • BASIC, FORTRAN, COBOL, PASCAL, C, VB, VC, Delphi, .net, Java

  • (Application Program)

    • () Microsoft Office, Internet Browser, , ,


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  • (Machine Language)

    • (0 1)

  • (Human Oriented Language)

    • (Low level language)

      • (Assembly)

    • (High level language)

      • BASIC, FORTRAN, COBOL, PASCAL, C, VB, VC, Delphi, .net, Java


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  • BCD (Binary Code Decimal)

    • 1 6 64

  • EBCDIC (Extended Binary Code Decimal Interchange Code)

    • 1 8 256

  • ASCII (American Standard Code Information Interchange)

    • 1 8 256

  • Unicode (American Standard Code Information Interchange)

    • 1 16 65536


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  • (Speed)

  • (Accuracy)

  • (Reliability)

  • (Retention)

  • (Economy)

  • (Wide Applicability)


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  • (Dependence of People)

  • (Time-Consuming System)

  • (Disruptiveness)

  • (Unadaptiveness)


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(Data Processing)

  • (Data) , , , ,

  • (Information)


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Data

Processing

Information


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  • (Bit) 0 1

  • (Byte) 1 01000001 A 8 1

  • (Field) , , ,


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  • (Record) , , , , , , ,

  • (File) , ,

  • (Database) ,


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    • COMEXE COM EXE


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    • (Microsoft Word, Excel, Power Point ) (Documents )


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    • (Trojan Horse Virus)


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    • (Worm) E-mail, Network


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    • (Hang)


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    • A A

    • IE, Mozilla Firefox .com


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    • CPU ( Broadband Modem, Hub, Switch)

    • Autorun.inf .vbs


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    • .com


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    • (Write Protect )

    • SCAN Kaspersky, Norton, McAfee, NOD32, AVG, AVIRA, F-Secure Avast


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The End


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