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Note for Digital Electronics Circuit - DEC by Suman Kumar Acharya

• Digital Electronics Circuit - DEC
• Note
• Biju Patnaik University of Technology BPUT - BPUT
• Electrical and Electronics Engineering
• B.Tech
• 155 Views
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Note for Digital Electronics Circuit - DEC by Suman Kumar Acharya

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Suman Kumar Acharya
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Chapter Objectives   Understand the number system used in Digital Circuits Understand the types of complements:      1’s complement 2’s complement 9’s complement 10’s complement Understand the types of codes in digital systems 2

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Number System   Number system is used to represent the numbers. The different types of number systems are:     Decimal number Binary number Octal numbers Hexadecimal numbers 3

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Decimal Number     It uses digits from 0 to 9 for representing the numbers. It is represented with base 10. A decimal number can be represented using positional weights. Example: (198)10 = 1 X 102 + 9 X 101 + 8 X 100 4

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Binary Number     It consists of only two digits, 0 and 1. It is represented with base 2. A binary number can be represented using positional weights. Example: (198)10 = (11000110)2 = 1 X 27 + 1 X 26 + 0 X 25 + 0 X 24 + 0 X 23 + 1 X 22 + 1 X 2 1 + 0 X 20 = 128 + 64 + 0 + 0 + 0 + 4 + 2 + 0 = 198 5