How to add ports to logic gates?

Question

I am trying to draw the following image in LaTeX. But by so far I was able to draw the square and or gate. Can some help to draw this? Thanks.

Answer 1

A quick google search will lead you to the following very helpful pages:

Drawing circuit diagrams (with logic gates) in LaTeX

https://notgnoshi.github.io/drawing-logic-gates-with-tikz/

http://www.texample.net/tikz/examples/logic-circuits-library/