Binary 2 - Two's Complement Representation of Negative Numbers

This is the second in a series of computer science videos about the binary number system which is fundamental to the operation of a digital electronic computer. It covers the two's complement system of representing positive and negative integers in binary. It demonstrates how two's complement allows computers to perform subtraction operations, and explains with examples three different methods that can be used to convert negative denary numbers into binary.

[swedishguyonyoutube]

I am humbled by how pedagogical, clear and efficient you are in teaching this material. I'm a former teacher switching careers to work in IT, and your videos have been incredibly helpful and instructive. Thank you very, very, much!

[talharashidi]

this is easily the best video on youtube for learning 2's complement.

[Jaysonad]

I have exam in Discrete mathematics in a few days and this is one of many topics. I knew how but not why. Thank you so much for making this so so clear. My teacher never explained the first 1 stands for -128! nor the book or notes . If all the teachers were like you the civilization would be much more advanced.

[oliver]

so I spent hours reading this section in my textbook trying to understand it with no luck. So i decided to watch this video, and 12 minutes later I fully understand the concept. Thank you so much!

[TchBeatz]

Kevin's delivery of these tutorials is just brilliant - Thank you!

[cesarvides]

Just when I thought I had learned an easy method, you pull out another one. This video had me on an emotional rollercoaster.

[adamyagaur]

This is learners gold. Short, crisp & clear . Thanks a lot!.

[TheLonelyLPer]

This is hands down the best explanation I've had for 2's complement! Thank you!

[exactzero]

Awesome explanation. You didn't just teach the how but also the why which is the most important of all. That last technique was mind-blowing!

[veryangerymanminecraftisco]

Thank you so much dude, I never mange to find people who speak English on youtube that teach these sort of thing.

[boudieraurelien]

To be honnest, if you were in front of me, i'd have hug you ! You just made me so happy, i finally understood why i can use the 2's complement. I didnt understand why i had to use it. Thank you soooo much!

[rationalsage]

This is an incredible insight, I've never understood this, my teacher only taught me the shortcut to the conversion.

[nicestcatoutthere]

This was truly the best video on complements.

[potatochannel]

-Sir, you are a saver, my prof at the university only gave us the two's complement method without explaining where the hell that came from . I very thankful for you sir!

[xr.melissa]

Excellent video! My coworker was trying to teach this to me but it's hard to follow without strict examples, so thanks for this!

[cheapwisdom]

Thank you so much. Why the universities cannot make their material as easy as this? Thank you millions!

[sandipghoshal]

This so far the best video on two's compliment

[amanrubey]

your videos are simply superb.
it's the same as watching some interesting documentary.
I'm loving it. True Gem on the internet

[mariiasafonova]

Oh my Godness. It's so great explained. I find it just wondersfull so you can pause the video or watch this one more time till you get the idea...not like at the uni.

[deedewald]

You are confident and capable to teach complex concepts !