I am tring to make a circuit and need to purchase the required components but there are some IC's that I can not identify. I tried to google them up but I haven't found anything helpful yet.I also can't understand a few symbols on the diagram, and I want to know what they represent. the top 3 images are the components. the bottom 2 imaged are the symbols. what does the green triangle mean? im guessing that the pentagonal blue block is a direct input but i am not sure, also whats the red circle above it?. in the bottom most image, are the red and blue boxes (with 1 and 0's in them) input as well? and what are the smaller red and blue boxes under them? thats it for now. i'm sorry if these questions are very basic, i am new to this so bear with me.