Procedure
- Add IC 74LS02 into ICBase-2 (74LS02).
- Add IC 74LS02 into ICBase-3 (74LS02).
- Add IC 74LS32 into ICBase-4 (74LS32).
- Connect Input-10 to Pin-2 (Input) of ICBase-2 (74LS02).
- Connect Input-9 to Pin-3 (Input) of ICBase-2 (74LS02).
- Connect Input-8 to Pin-5 (Input) of ICBase-2 (74LS02).
- Connect Pin-4 (Output) of ICBase-2 (74LS02) to Pin-14 (Input) of ICBase-2 (74LS02).
- Connect Pin-4 (Output) of ICBase-2 (74LS02) to Pin-15 (Input) of ICBase-2 (74LS02).
- Connect Pin-18 (Input) of ICBase-2 (74LS02) to Pin-1 (Output) of ICBase-2 (74LS02).