Integrated Circuits Used
Description
 4:1 mux using ic 74153. to implement the (1,2,3) 
 Procedure
- Add IC 74LS153 into ICBase-2 (74LS153).
 - Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS153).
 - Connect GND Port to Pin-8 (Ground) of ICBase-2 (74LS153).
 - Connect VCC Port to Pin-3 (Input) of ICBase-2 (74LS153).
 - Connect VCC Port to Pin-4 (Input) of ICBase-2 (74LS153).
 - Connect VCC Port to Pin-5 (Input) of ICBase-2 (74LS153).
 - Connect GND Port to Pin-6 (Input) of ICBase-2 (74LS153).
 - Connect Output-0 to Pin-7 (Output) of ICBase-2 (74LS153).
 - Connect Output-1 to Pin-13 (Output) of ICBase-2 (74LS153).
 - Connect Input-0 to Pin-18 (Input) of ICBase-2 (74LS153).
 - Connect Input-1 to Pin-2 (Input) of ICBase-2 (74LS153).