Make a table as shown in the attachment. Four input variables give 16 states. As you can see, Q is high only in states 0 and 1. Therefore, only variables A,B, and C control the output. That means you can hardwire D to either TRUE or FALSE and it would not make any difference in the output Q.
I have no idea what you want or need because you have not articulated your problem clearly. You have the Boolean equation of the circuit, and you can easily read off the intermediate equations from the table. What more do you need?ive been looking at it more complecated than it actually is so with this i could simplify this to one NOR gate with the inputs A B C i think my instuctor might have wanted to see we can write boolean expressions would my atempt be ok for a basic expression? cheers for the reply though
Dale Perkins,Id rather you not talk to me if you're going to try and offend me its not helpful at all and as thats the reason i joined this forum, to be helped with coursework, im already in employment with the biggest engineering company in the uk so i dont need your "advice" either, the reason all these problems with my post occured is because I am extremely busy and grammer wasnt the main thing on my mind, you have really wound me up as everyone seems helpful but you dont!!
How is it good advice on my career if you know nothing about my career or good advice on my post if you havn't helped with it?Dale Perkins,
I gave you good advice. You would be wise to follow it.
Good communication skills are necessary and valued no matter what your career is. I have helped you with the Boolean expression for the logic circuit. Didn't you notice that?How is it good advice on my career if you know nothing about my career or good advice on my post if you havn't helped with it?
I didn't want advice on how to live my life or how good my grammer is I needed help with a boolean expression!!