Integrated Circuits Used
Description
 Roll no 2178 IC 74LS00 user. Input section A - 15 th Input pin B - 14 th Input pin Cin -13 th Input pin  Output section Sum- 0 th Output pin  Carry - 1 th output pin 
 Procedure
- Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS00).
 - Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS00).
 - Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS00).
 - Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS00).
 - Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS00).
 - Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS00).
 - Connect Input-15 to Pin-1 (Input) of ICBase-1 (74LS00).
 - Connect Input-14 to Pin-2 (Input) of ICBase-1 (74LS00).
 - Connect Input-15 to Pin-4 (Input) of ICBase-1 (74LS00).
 - Connect Input-14 to Pin-16 (Input) of ICBase-1 (74LS00).
 - Connect Pin-5 (Input) of ICBase-1 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
 - Connect Pin-15 (Input) of ICBase-1 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
 - Connect Pin-18 (Input) of ICBase-1 (74LS00) to Pin-14 (Output) of ICBase-1 (74LS00).
 - Connect Pin-19 (Input) of ICBase-1 (74LS00) to Pin-6 (Output) of ICBase-1 (74LS00).
 - Connect Pin-1 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS00).
 - Connect Pin-4 (Input) of ICBase-2 (74LS00) to Pin-17 (Output) of ICBase-1 (74LS00).
 - Connect Input-13 to Pin-2 (Input) of ICBase-2 (74LS00).
 - Connect Pin-5 (Input) of ICBase-2 (74LS00) to Pin-3 (Output) of ICBase-2 (74LS00).
 - Connect Pin-15 (Input) of ICBase-2 (74LS00) to Pin-3 (Output) of ICBase-2 (74LS00).
 - Connect Pin-19 (Input) of ICBase-2 (74LS00) to Pin-3 (Output) of ICBase-1 (74LS00).
 - Connect Pin-3 (Output) of ICBase-2 (74LS00) to Pin-18 (Input) of ICBase-2 (74LS00).
 - Connect Output-0 to Pin-17 (Output) of ICBase-2 (74LS00).
 - Connect Input-13 to Pin-16 (Input) of ICBase-2 (74LS00).
 - Connect Pin-2 (Input) of ICBase-3 (74LS00) to Pin-14 (Output) of ICBase-2 (74LS00).
 - Connect Pin-1 (Input) of ICBase-3 (74LS00) to Pin-6 (Output) of ICBase-2 (74LS00).
 - Connect Output-1 to Pin-3 (Output) of ICBase-3 (74LS00).
 - Add IC 74LS00 into ICBase-1 (74LS00).
 - Add IC 74LS00 into ICBase-2 (74LS00).
 - Add IC 74LS00 into ICBase-3 (74LS00).