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Binary Lecture.docx

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Ryerson University
Information Technology Management
ITM 207
Youcef Derbal

Computer Science Illuminated Chapter 2: binary values and number systems Natural Numbers: zero and any number obtained by repeatedly adding one to it ; example: 0, 1, 2,3,4,5 Negatives Numbers : numbers less than 0 Integers: A natural number, a negative number, zero Rational Numbers: An integer or the quotient of two integers. Real Number: any number that The base of a number determines the number of digitis and the value of digit positions. Binary - Decimal is base 10 and has 10 digits :0, 1, ,2, 3, 4, 5, 6, 7, 8, 9 - Binary is base 2 and has 2 digits : 0, 1 - For a number to exist in a given base, it can only contain the digits in that base, which range from 0 up to (but not including) the base. Bases higher than 10: How are digits in bases higher than 10 represented? - With distinct symbols for 10 and above - Base 16 has 16 digits. -
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