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Basic Data Types

1. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. One’s Compliment. Basic Data Types. In Binary, the negative of a number is the opposite of that number. The opposite of the number 8 :. Would be:. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 0. 1. 1. 1.

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Basic Data Types

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  1. 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 One’s Compliment Basic Data Types In Binary, the negative of a number is the opposite of that number. The opposite of the number 8: Would be: 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 The process is called Complimenting (One’s Compliment, to be precise) Now, if we add the two numbers (8 + -8) together:

  2. 0 1 1 0 0 1 1 0 0 0 0 0 1 0 1 1 1 0 0 1 1 1 1 0 0 0 0 0 1 1 0 1 0 1 0 8 Basic Data Types + -8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Notice that the left-most bit is negative, meaning the number is negative Negative??? 8 plus -8 Yields a negative number??? On some machines, that is possible.

  3. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 IF the left-most bit is negative, then to determine the value, the remaining 15-bits must be complimentedin order to determine the true value: Basic Data Types Number: Compliment: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Meaning that the actual value is -0 Negative Zero??? As noted before, on some machines, this is possible. This process is called One’s Compliment.

  4. This Concludes The Slides for this Section Choose an Option:  Repeat Slides for this Section  Go To Next Set of Slides For this Chapter  Go To Slide Index For Chapter 2  Go To Slide Index For Chapter 3  Go To Slide Index For Textbook  Go To Home Page

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