And there are many other wrong-due-to-ignorance, deliberate misinformation or just made up comedy videos with millions of views each.The same configuration of NAND exists in video of 100;000 views.
thanks a lot
Cool - scary to think though that something as small and cheap as a PI can simulate (and greatly exceed) a PDP8.I had the district displeasure of interfacing with a PDP8 using paper tape to input programs,
for IC test purposes. Then with a PDP11 (I think) with a disk pack. Had one blow up with my head
inches away from stack. But to the DEC EEs credit (someone must have gotten injured), it had a
rugged housing to contain the shrapnel.
DIY PDP8 - https://hackaday.com/2015/03/26/hackaday-retro-edition-remaking-the-pdp-8i-with-a-raspberry-pi/
Several decades ago, when I was still living at my parents place, I managed to acquire a PDP8 that some part of Nottingham, university was scrapping.
At 16:48, when the NAND drawing is complete, notice that in the LED column there are *no* logic levels. He has On and OFF, but no 0's and 1's. This is the only reason his statements are correct. Also, it is a significant omission, and throughout the video he bounces back and forth between active-high and active-low outputs without a word of explanation. In a world where everyone assumes that, unless stated differently, all logic is positive logic and all inputs and outputs are active-high, this is a critical error.Here is the link to the video: