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UNIT1..

TOPIC1. NUMBER SYSTEM CONVERSIONS AND BINARY CODES(BCD,GRAY,EXCESS-3)—(DON’T SKIP BRO———————)

• Decimal ↔ Binary (including fractional)
• Decimal ↔ Octal/Hexadecimal
  • Binary ↔ Gray code
• BCD ↔ Excess‑3 code
• Binary code → Gray code using combinational circuit / decoder
• Hex ↔ Decimal
• 9s and 10s complement

june 2025

DEC-2024

DEC 2024

DEC 2023—-NEW ()7= ()12

JUNE 2023

nov 2019

JUNE 2020