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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
• 195 Views
Suman Kumar Acharya
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Chapter 1 Number System and Codes

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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