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mlittman (November 30, 1999 at 12:00 am)
Logic gates are the basis of digital computer circuits. I was trying to show my students that these gates, though usually made out of electricity, can be constructed out of physical objects as well.
ToBeBlackStar (November 30, 1999 at 12:00 am)
很不错
b0bb0bs0n (November 30, 1999 at 12:00 am)
how would you do an AND gate?
crusier10 (November 30, 1999 at 12:00 am)
From a teacher, that was an excellent simple demonstration of how circuits work. I'll be sure to include this in my next unit on computers!
pandaman0529 (November 30, 1999 at 12:00 am)
those legos are so cool
Coastergeekperson04 (November 30, 1999 at 12:00 am)
I'm guessing you think it sucks because your are not interested. If you see a video and know you are not interested, don't watch it, because it will be a waste of YOUR time and you'll just make a negative comment anyways.
mlittman (November 30, 1999 at 12:00 am)
In a computer, W is represented by a sequence of 8 bits, specifically, 01010111. It is common to represent a 1 using 5 volts and a 0 using 0 volts.
I don't image these facts really help, but they answer your specific questions, anyway. In my intro course, I try to explain things in a lot more detail.
shakadragom (November 30, 1999 at 12:00 am)
i don't get how computers work with binary system, like what makes the computer know that i want to type "W"? A sequence of 0's and 1's? An eletrical signal made by the voltage of 1 and 0?
obieonetoby (November 30, 1999 at 12:00 am)
this vidio sucks
mlittman (November 30, 1999 at 12:00 am)
You're right, there is a timing dependency. (Of course, real circuits have such dependencies as well!) |
