Switches to CPUs: 2 Input Gates
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- เผยแพร่เมื่อ 29 ก.ค. 2024
- Here we go over the buffer, NOT gate, AND gate and OR gate.
I'm waiting on some parts from China to finish the ZX Spectrum series.
Part 1: Binary numbers - • Digital Logic Explained
Part 2: 2-input gates - • Switches to CPUs: 2 In...
Part 3: Relay based logic - • Switches to CPUs: Rela...
Part 4: Latches - • Switches to CPUs: Rela...
Part 5: SR Latch - • Switches to CPUs: Set ...
Part 6: Wired OR gates - • Switches to CPUs: Wire...
Part 7: Flip Flops - • Switches to CPUs: Flip...
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The Dr. explains everything so clearly. Looking forward to this series.
Excellent. Thanks for the feedback.
The sixteen possible two input gates is something I never saw before. I like how you tied it to the binary counter.
Thanks Martin. Looking at this way gets out of hand pretty quickly, there are 2**2**n possible gates for n inputs.
This is a fantastic series so far. You’ve clearly put a lot of work into this and it shows.
Enjoy, more to come.
This is perfect! The simplest way of explaining entry level digital electronics for the absolute beginner! This series will be a great resource for many amateurs. Please follow, subscribe, share etc, the channel deserves to be pushed up a little.
Thanks for that! More to come!
@@DrMattRegan I just shamelessly advertised your channel in a FB group that you also seem to be a member of. Sorry for not asking you first about this, but your channel and this new series needs to have more audience.
No problems. Always looking for a bigger audience!
Great introduction!
could you expand more on the unnamed gates ? What they could be good for and how you would implement them and how to make them from named gates ?
Will you explore the many possible 3 input gates ?
I love this stuff !
Sure, the unnamed gates are A OR (NOT B), (NOT A) OR B, A AND (NOT B), (NOT A) AND B. So they are useful, but no simple name. The 4 remaining named gates are NAND, NOT, XOR, XNOR. Will look at these with the 3 input gates
I've never heard the term "light globe" before. Is that Australian? In the UK we would call it a light bulb.
Yeah, it must be. Light globe is a common term here..
That slipped right by me, but I was wondering how everything is powered by a bad tree. J/k !
I checked into it, and yes, it appears light globe is an Australian thing.
brainly.com/question/39704930
@@DrMattReganIt's as good a name as any. Light bulb makes it sound like something you plant to grow a lamp.
(1:19) This is the classic view of electricity, but technically, the electricity actually flows from the _negative_ side of the battery. That's just a nitpick, though.
(6:16, 7:39) On both of these truth tables, you repeated "OFF, ON, OFF, ON" for both input columns, when one of the input columns should be "OFF, OFF, ON, ON" instead.
(8:01) That should be "OFF - ON" for a short bit before changing to "ON - ON."
(9:28) It might be good to explicitly point out that you added "True" and "False" here.
Great video! Most of my commentary on this sort of video just tends to be pointing out things that could be improved.
Thanks for the feedback, glad you like it.
Unfortunately, once a youtube video is up, it can't be modified.
You can snip bits out, or delete the whole thing and repost, but you lose all the comments when you do that.
It was a deliberate decision to talk about conventional current instead of the flow of electrons. This is designed for 12 year olds, so that level of detail isn't required yet.
I'm going to branch out into a relay6502 soon which should be fun.
@@DrMattRegan Relay6502 does indeed sound fun.
I've often seen other channels errata list in the description or a pinned comment to allow for corrections without the need for a reupload, if that helps.
Hi, is this a weekly serie? Very good and explanatory!
Yes, i'll try and get them out weekly. Thanks for the feedback.
Buffers are for strengthening the electrical signal, right?
Yes. In an electronic circuit, a signal will be driven with a certain strength depending on the characteristics of the driving device. In some cases that may not be sufficient strength to send the signal over a distance, or to feed a large number of other circuit stages. A buffer may then be used to strengthen the signal to ensure that the correct signal is received at all connected devices.
The relay is a buffer and it was invented for this purpose. In general now though, i personally tend to use buffers that can disconnect the output (high impedance) which can be connected up to a bus, like the 74HC245.