construct or gate using nand gate on Proteus

construct and gate using nor gate

construct and gate using nand gate on Proteus

construct not gate using nor gate on Proteus

construct RS flip-flop using nor gate on Proteus

construct not gate using nand gate on Proteus

This is a Proteus tutorial to construct SR flip-flop using nand gate. Here 2 nand gates are used.
If we use the SR logic then the output in front of R is considered as Q and the output in front of S is considered as Q'.
If we use the RS logic then the output in front of S is considered as Q and the output in front of R is considered as Q'.
using Proteus, after you construct SR flip-flop, you can verify the table of SR flip-flop