Beginner Electronics - 31 - Binary Subtractor
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- čas přidán 18. 07. 2020
- We learn to convert a chain of full-adder circuits into a binary subtractor circuit, with the addition on only a few gates and changes!
*DISCLAIMER - READ BEFORE WATCHING*
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
See my website: codenmore.github.io/
Follow me on Twitter - @CodeNMore - / codenmore
Teaching to understand all subjects to the fullest extent! - Jak na to + styl
**DISCLAIMER - READ BEFORE WATCHING**
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
I appreciate your work, I'm amazed that you continue this series since last 6 year that's amazing.and thank you for helping
How many more episodes u think?
I am a high school student who learned from this series and now I show off how much I understand about logic gates and binary 😆
Please continue with this series with full pace cause I'm running out of tricks bro❤
Hi CodeNMore, thankyou for making this awesome tutorial series. I'm just wondering if it's possible for you to list the topics that would have followed this video so we can find other sources to help us develop our goal towards being able to create an 8-bit computer. Thanks again, and all the best to you.
Can you continue this series?
Best Video Series, I wished it was complete. Really appreciate your work Mr. Tony
"When the world needed him most, he vanished"
And though his teaching skills are great, he has a lot to learn before he can finish posting any series. But i believe CodenMore can save the project.
@@jacobfranks8641yall literally just made my day
@@jacobfranks8641sure… it’s now 2024 and he still didn’t finish the series
@@devox7583that’s so weird…. I didn’t realize my name looked like that. Huh.
Are you ever going to continue this series? It's very informative!
I just “binged” all 31 episodes of this series. When does the next installment come out?? Great work on the diagrams and teaching. This has been great! Thank you.
Greatest series, it’s a shame you don’t have more time for this, I learned so much. Thanks
I have learned more from your videos than my entire 3 years of engineering college ,thank you mate and keep the videos coming .
I was here to check whether the 8 bit computer before starting the course but it's not here. But just from seeing the thumbnails and your introduction and ac DC video, I can confirm that...
You are ASTONISHING!
This channel is completely underrated. Amount of info and the structure of this vid are superb. I can only imagine how much longer it would take me to summarize this content. Whoever you are, it is a brilliant piece of work! Thank you.
Please continue the series. I have learned more from your videos than I have from 2 months of watching daily electronics videos. PLEASE PLEASE PLEASE
Just wanted to thank you for this amazing series, I hope you continue it once you have the time to do so. You're truly an amazing teacher, I've learned a lot.
Congratulations for this amazing tutorial series!! 🙏🙏🙏🙏 It is my starting point in electronics and computing machines science and I've really learned a lot in this series! I hope everything is okay with you though and you will return with more episodes in this series soon, because you really have a talent of explaining and teaching even tough math and that is really awesome!! 😊😊 I understand pretty quickly the notions you teach even though I am not an English native-speaking person and also math and physics have never been my strongest points of study, so that is very important! 🌈🌈 I wish you the best and keep up the good work! 👍👍🙏🙏
Same
I thought I was late to the party but the series is still ongoing. Hope I will see these adders on a real breadboard!
Bro you should do more of these. You are a gifted teacher
As a note to this video: I use the term "2's complement" at some places in this video when I meant to instead say "inverse" (you'll see some notes on-screen about this). To clear up any confusion: 2's complement is the format of the binary numbers we are using (this allows us to represent positive and negative numbers in binary). Both the positive and negative values are in 2's complement format (it just defines how we read the binary data). When I speak of the inverse of a number, I mean that the inverse of 2 is -2, the inverse of -5 is 5, etc.
Come back !
I just watched this whole thing, start to finish, in 2 days. Thanks so much for coming back to work on this when you're able - I'm really excited to keep learning when you're able to next
@@captainamerica949 lol why are you posting misinformation... Would appreciate if it was atleast funny. This is just trolling.
@@godfather7339 This is serious, please don't bring laughter to others misfortune. Reality isn't funny, now please control your emotions.
Additional update - his dog didn't pass away and was resuscitated by the vet. The series will now commence 2024. Thank you
Maaan😭😭watched all the episodes, when are u releasing the next bro?? I need u man
I'M VERY SAD TO WACH THE LAST EPISODE. IHOPE YOU WILL CONTINUE IN ELECTRONICS. YOU ARE THE BEST TEACHER I HAD EVER SEE IN MY WH
OLE LIFE. GOD BLESS YOU .
A very good 'step-by-step' series. It's a good refresher for me (an ex-bench engineer from the '70's). It was mainly analogue then with some early IC's. So, the digital /logic areas are very good for me.....well done ! I hope you can continue.
When can we expect another video? Is there anyway we can assist? I hope you get your motivation back to keep pumping more good content!
as he said, its not a matter of motivation, rather a lack of time due to his current life schedule. let's not get greedy. this guy is delivering pretty good content for us!
@@deecee8108 THE 100k MILESTONE HAS BEEN REACHED, HE NOW REQUIRES AN ADDITIONAL 500k TO COMPLETE A 1 MIN VIDEO. tHANK YOU
@@captainamerica949 I don't get the joke?
@@godfather7339 Godfather this is not a joke, please collect yourself.
Thank you so much for these videos! I just started my this series a few months ago and have learned so much. Keep going.
These are the best electronics tutorials I could find! Thanks for making them, I'm looking forward to seeing the next one.
Superb. Awaiting for a mesmerizing continuation of this unique serie in 2022. And sharing it to get it more visibility. Thanks CodeNMore.
Thank you so much for continuing this series! I'm so excited to learn all this while I'm stuck in my room!!
This series has been a great help to me since i first started watching it. I really hope you get back to this series one day, but please, take your time
Your series is fantastic. I watched every episode and learned a great deal. Thank you for taking the time to educate us. I hope good things manifest in your life given the generosity you have shown in sharing your knowledge here.
This entire series is just amazing! I am also learning electronics. It's something I have always been interested in and I have learned SO much from this series. I picked up an Arduino Uno kit to get familiar with the components and it has been nothing but fun. PLEASE continue this series. Any tips on links to learn more (at a beginners level) would be greatly appreciated!!! Thank you again for your hard work and please continue to teach all of us :)
Dude you explain so well this whole series was amazing I watched it in one go
I saw all your videos in 2 days ! It's really helping me getting into electronics thanks a lot !
Thank you for making these, You are a good teacher
I just reached the final (currently) episode of your series. Really looking forward to building the 8-bit computer! :D And I subscribed so that I don't miss any new videos! You are the greatest teacher ever and I hope you will find some time to finish it! :)
You are a great teacher, I like to learn about electronic from you , I daily check for your new video but I dont not getting any. Plz post regular videos on basic electronics
So awesome 🥺👏❤️❤️❤️❤️🌟🌟. Please upload the complete series❤️😊
Well, it's been a year and you never finished this series? . I'm assuming being as you have left it up? that you're hoping someday to finalize this series? Has to be the best series I've seen on youtube.
This is the best free series of electronics I've ever seen.
Now I can understand the videos of eletroBOOM and the Great Scott
Good to know cuz I'm going to Great Scott's beginner series next :D Any other recommendations?
@Divye Ruhela "The engineering mindset" have a good Playlist too
Thank you very much for this series it's really amazing
Please could you finish it 🙏
Thank you for your efforts
Finally a new episode!! Thank you so much!
Thank you. Looking forward to the next instalment!
THANK YOU!!! Hope you keep making amazing videos so I can support you even more!! You rock.
Amazing course!!! understood with few episodes things my teachers in collage spent months on without it actually getting through my head. Thank you mate for an amazing experience xD
Thank you so much for not giving up on this series, i hope it continues on with no problems, and we wish the best of luck! Also wiill you continue the series after the 8 bit computer? And will we ever get into things like oscilloscopes and soldering?
I may continue with various topics, yes, and I do want to cover basic soldering/perfboard stuff eventually. However, I'll try to keep those plans for when I get there (which hopefully won't be overly long!) Thanks for the kind words!
I totaly recomend the do it your self ocilascope kit...you can solder it together yourself..its a fun challenge to learn from
@@CodeNMore Please dont lose motivation for this you can do it!
@@CodeNMore Just started with this series (im right now at cap 7) and oh boy how happy it made me to see that you didnt left this to die :D Pretty hyped to reach this part dude ^^
@@CodeNMore where is the 8 bit computer?
thank you sir for making this series. it helped me alot with electronics and the basics of the electronics. i hope u make a series on robotics aswell.
Thank you so much for doing this series. ur a great teacher!
oh man speaking that the series started in 2017 i thought we would be building the computer and that this was the last episode haha looks like i caught up:) ! thank u so much up to this point for continuing to making free education!
Thank you. Waiting for the new episodes!!
good on you for helping us learn. hopefully you'll make/find time to finish it.
please continue this series!
I hope you come back to this series man!
After 4 years you finally learned how to make the eraser bigger! Good job friend :D
hello your series is amazing, we need u to continue making videos
Very excited to see the next episode :D
amazing teacher...thanks for all the content...
Very sad this stopped here. hope you return to finish this series
Hope everything is alright with you. It was a great seroes so far. But as last video was added 3 years ago - probably this playlist will never be completed.
Anyway, thank you so much fo what you already shared with us. You have a gift in teaching.
I was wondering the same thing. All of his videos stop 3 years ago - except for the video game, which has its last installment 1 year ago.
please continue this series
Keep the videos coming
Made more video in this series because they are really useful and helpful to beginner
Please continue the series
Certainly would like to see more. I'm very interested in the 8 bit computer.
Welcome back hella yeah
Thanks for what you did! Very useful, be great if you finish, but I guess life happens!
So you could use the same circuit to do addition and subtraction, just using a switch (or a fancier variant) to include/bypass the NOT and decide whether to feed HIGH/LOW to the first adder?
YAAAY!! YOU'RE BACCKK!!! THANK YOU SO MUCH! I HOPE YOU'RE DOING WELL!!
cant wait for for next vid man.we need that PI rasberry lookalike
getting closer and closer to the finish line
Hope u come back soon :). We need more about modes of ic 555
I want to learn more electronics from you
Oh my , i keep coming back to check .
Are you ever going to complete this series?
Hoping for the next lesson to be released. 🙏
it was fun and I watch the whole thing in one day 1-20 were familiar to me, 21-30 new stuff
Where can I get a copy of your resistor chart and any other info. Available.
Please have a come back. I'm Waiting on the next video
Sir please the 8 bit computer. Ive been so excited for it😭
My guy is really gone this time, huh? I’m gonna need that ALU video
When can we expect next episode?
Finally.... after 62 years, I know how an Elsi-Mate works... or its most rudimentary functions at least.
I could have been a Math professor, but I found there was more sex available in playing guitar in a rock'n'roll band.
The rest is history.
Thanks for the presentations. BIG thanks.
@CodeNMore I wish you could could finish the source. It is good
you are the best tbh
Bro wouldn't u are going to continue this series .so many days no video yet we are waiting for it
When do we make the computer
is it gonna continue ? :(
I'm greatful sir
hallo codnmore i watch your beginners electronic and started to play with also.i am making simplest way of speech controller for lights and fan but i am having problems can you help me please
WHERE IS MY 8-bit COMPUTER SYSTEM....
First of all i really like the series i like the way you teach the video quality and the fact that there is an end goal last video you said you can't make your uploads consistent because one reason or another and i wanted to say that if you open a patreon account me and I'm sure others will be happy to subscribe and help you make it possible to upload more consistently
I appreciate the support! The reason I don't have a patreon is because I'm afraid that currently I wouldn't be able to upload this series more consistently/make it worth-while for the supporters. When I get to a point where I know I can commit to that, maybe I will. Thanks again!
Where is no 32 episode ?🧐
Isn't there a problem here? If we design circuit with this and give negative no.s for computaion it is giving ans in 2's complement but we have to get it in positive form to know about correct no.
How do we design to decode this information in this Binary Subtractor ckt.?
Also can u plzz give us idea about how would we employ an LED Screen to give us the respective outputs or any other way to check the outputs of such computations.
The only point of converting the number to its positive form at the end is so we (as humans) can verify the answer is correct. The computer doesn't need to do that, it can deal with the numbers in their compliment form. As for hooking up to a display, you could use an arduino. Or you could use the method from a few episodes ago where the adder is wired to LED bulbs (showing the sum and carry out of each adder) and a binary digit of 1 is represented by an illuminated LED and a binary digit of 0 is represented by an LED that is off.
maaaan...were so close!!! im ecited lol
Oh shoot this started so long ago!
When will you make 8 bit computer
Thanks... May Allah give what you deserved....
For anyone who struggles with binary subtraction, there is an easier way to think about it, and it comes from clocks.
If it's 2 o'clock and you subtract 1 hour, you get 1 o'clock. That's easy enough. But if it's 2 o'clock and you subtract 3 hours, you get 11 o'clock. How did we get from 2 to 11, a bigger number, by using subtraction?
It's to do with representations. Assuming a true 12-hour clock without am or pm, 12 is the same as 0, and 13 is the same as 1, and so on. Because we're forced into using the same 12 numbers over again, each one has to represent several possible values. Following the logic into negatives, 11 is the same as -1, 10 is the same as -2, and 9 is the same as -3, which is why 2 - 3 = 2 + (-3) = 2 + 9 = 11.
Instead of subtracting 3, what we're really doing is adding 9. Clocks work in cycles of 12, so the inverse of any number would be 12 minus that number. Assuming we have the most basic clock that is not capable of measuring am or pm, the clock can't distinguish between different numbers with the same representation.
A four-bit adder is much the same, but it works in cycles of 16. The inverse of any number is 16 minus that number. So the same subtraction as above in a four-bit adder would be
2 - 3 = 2 + (-3) = 2 + (16 - 3) = 2 + 13 = 15, which is just -1.
Instead of thinking of the left-most digit as a 'sign' digit, we can just think of our binary subtractor as working in cycles of 16, and accept that we will only be able to input 0-15.
Love u❤❤❤❤
So now I have to wait... OKAU
Soon put your next video (requested).
So has this series died again? Last time it was years between videos!
Why don’t you complete one tutorial series and then start the next one. It seems you are not interested in continuing this series anymore. If that is the case then kindly let your subscribers know so that they don’t have to wait forever, hoping to learn more on the topic.
Plz post new videoosss
Come back.