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Chapter 2

ITM207 Chapter 2.docx

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Department
Information Technology Management
Course Code
ITM 207
Professor
Youcef Derbal

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Description
Chapter2BinaryValuesandNumberSystemsNumberA unit of an abstract mathematical system subject to specified laws of succession addition and multiplicationNatural Number is the number 0 or any number obtained by repeatedly adding 1 to this number These are the ones we use while countingNegative Number is less than zero and is opposite in sign to a positive numberInteger is any of the natural numbers or any of the negatives of these numbersA rational number is an integer or the quotient of two integersthat is any value that can be expressed as a fractionThe base of a number system specifies the number of digits used in the systemoThe digits always begin with 0 and continue through until one less than the bestoFor example In base 2 there are 2 digits 0 and 1oThere are 8 digits in base 8 0 through 7Numbers are written using positional notation It is a system of expressing numbers
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