CE108 NOTES 1-2.1

CE108 NOTES 1-2.1 - ALGORITHM=SYSTEMATIC PROCEDURE?...

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Unformatted text preview: ALGORITHM=SYSTEMATIC PROCEDURE? INFORMATION TOOL-IS ONE THAT ALLOWS US TO CHANGE THE CONFIGUARATION OF INFORMATION JUST LIKE PHYSICAL TOOLS LIKE SCREWDRIVERS AND HAMMERS THAT AMPLIFY AND CONCENTRATE FORCES AND THEREBY ALLOW US TO CHANGE THE CONFIGURATION OF PHYSICAL THINGS. COMPUTATION-IS A TRANSFORMATION FROM ONE OR MORE INPUTS TO AN OUTPUT. EX: 3+2-3 AND 2 ARE INPUTS OR ARGUMENTS THAT ARE TRANSFORMED BY AN OPERATOR TO AN OUTPUT. 1.2-THE DEF OF COMPUTATION AS A TRANFORMATION FROM INPUTS TO OUTPUT IGNORES THE ISSUE OF WHERE THE INPUTS COME FROM. THESE INPUTS OFTEN COME FROM MEASUREMENTS!!!!!!!!!!! A MEASUREMENT(THE LENGTH OF AN OBJECT, VOLTAGE DIFFERENT BETWEEN 2 PTS IN A CIRCUIT, OR THE IQ OF A TEST SUBJECTS) ASSIGNS A VALUE(AN OUTPUT).-THE MEASUREMENT IS A TRANSLATING FROM AN INPUT-THE OBJECT OR EVENT- TO AN OUTPUT;A MEASUREMENT ITSELF IS A COMPUTATION. -----THE OBJECT TO BE MEASURED IS THE INPUT, THE MEASURING DEVICE IS THE OPERATOR, THE VALUE THAT YOU GET WHILE MEASURING OR OPERATING ON THE OBJECT IS THE OUTPUT. SO YOU GET A TABLE=OBJECT. YOU USE A RULER(OPERATOR) TO MEASURE ITS LENGTH=OUTPUT.-IN A COMPUTER-THE STATE OF A SYSTEM IS THE CURRENT CONFIGURATION OF THE INFORMATION STORED: THE CONTENTS AND ARRAGNEMENTS OF THE VARIOUS FORMS OF COMPUTER MEMORY NEW COMPUTATION DEFINITION-A COMPUTATIONS IS A TRANSITION FROM AN OLD STATE TO A NEW STATE. 1.3- JUST LIKE WE TEACH A LITTLE KID TO RECOGNIZE LETTERS AND DIGITS AND TO COMPARE NUMBERS.- 1 ST WE TEACH THE EASY COMPUTATIONS TO THE KID AND THEN MAKE THE COMPUTATIONS MORE COMPLICATED-----THIS IS THE SAME WAY WE PROGRAM A COMPUTER.----THIS IS THE SAME WAY WE PROGRAM A COMPUTER....
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This note was uploaded on 10/15/2010 for the course CE 108 taught by Professor Johnson during the Fall '08 term at USC.

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CE108 NOTES 1-2.1 - ALGORITHM=SYSTEMATIC PROCEDURE?...

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