COMMON BUS SYSTEM USING TRI- STATE BUFFER

Half Adder Circuit

4 BIT ADDER/SUBTRACTOR

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full adder using nand gate

BCD ADDER

Common Bus system using multiplexer

Full Adder

Comparator(1 and 2 bit)

3 BIT PARITY GENERATOR ODD/EVEN

Flip-Flops using NAND Gate

4- BCD ADDER

ALU Example

tri state buffer

ALU Example

4-Bit BCD Adder