Prelude to Computer Science - 7: Logic Gates

AND, NAND, OR, and XOR gates.

Category:

Howto & Style

Tags:

• introduction
• computer
• science
• prelude
• logic
• gates
• AND
• NAND
• OR
• XOR

[garetfrog]

I bought a textbook called Python Programming; an introduction to computer science and your video's are helping me understand it at a simpler level. Everything is so overcomplicated at the college level.

[TheFallibleFiend]

@garetfrog Many of these lectures are versions of what I taught in college. I asked myself, "What do I wish my own teachers had done to explain things more clearly."

[Shadowmil2]

Question, in diagrams, can you have more then one input to a AND, NAND, OR, or XOR gate?  How does the XOR handle more then one input? Does it only return true if 1 input is true? Or does it return true when all but one input is true?

[TheFallibleFiend]

@Shadowmil2 You can have multiple inputs to any of those circuits at least in diagram. I don' t think that multiple input logic gates can be bought, but you could make them out of other circuits (either logic circuits or the op amps). I think it should return high if exactly one of the circuits is on, but low otherwise.

[cnitdone]

Nicely done, my prof. is tired of teaching this stuff so moves through it quickly and in a very half hearted way. Makes his explinations hard to follow.

[TheFallibleFiend]

thanks for the feedback. good luck in your class.

[Shadowmil2]

@TheFallibleFiend Thanks, that has always bugged me...

[The1988Dragon]

u rock dude

[ntshanga]

thanq u hope il make it in ma exams u helped me

[michaelanoelle]

thank you. this makes sense. my professor doesn't, apparently.