D flip flop

T Flip Flop

SR Flip-Flop and SR Lache

4-bit Binary Adder

Counters

D Flip-Flop and T Flip-Flop

JK Flip - Flop

half adder

Full adder

SR flip flop

4 bit binary adder/subtractor

AND,OR,NOT gates using NAND gate

JK Flip Flop;