BXE

UNIT 3NUMBER SYSTEM AND LOGIC GATESWhat is a number system? Explain its types. Explain decimal number system giving suitable examples. Explain octal number system giving suitable examples. Explain hexa-decimal number system giving suitable examples. Explain binary number system giving suitable examples. Convert 19FDA into decimal. Convert 10FAA into binary. Convert E91DA into octal. What is the classification of binary codes. Give example. What is the difference between weighted and non-weighted codes? Convert 101101 into BCD and Excess 3 code. What do you mean by alpha-numeric codes? Explain. What are logic gates? Explain each with the help of truth table. Write short note on NAND gate and NOR gate.

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