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ECE
3rd Semester
EC-303
Unit 1 Notes

EC-303 DIGITAL SYSTEM DESIGN Unit 1 Notes

Notes and important questions for unit 1: Number Systems.

Unit 1 · Short notes Number Systems Decimal, Binary, Octal and Hexadecimal systems, conversion from one base to another · Codes – BCD, Excess‑3, Gray, Reflected ASCII, EBCDIC · Logic gates and binary operations – AND, OR, NOT, NAND, NOR, Exclusive‑OR and Exclusive‑NOR · Implementations of logic functions using gates, NAND–NOR implementations, multi‑level gate implementations, multi‑output gate implementations · Boolean postulates and laws – De Morgan’s theorem, principle of duality · Boolean functions, canonical and standard forms, minimization of Boolean functions, minterm, maxterm

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