Signed and Unsigned Numbers Made Easy! - Bits, Bytes & Binary Numbers

[@PuppyL07]

I’m definitely going to share this with my teacher and classmates. We’re doing CIE A-Level Computer Science and this is super helpful for paper 1. Thank you for an uncomplicated explanation!

[@LearnWithHuw]

Thank you. I'm glad it helps.

[@bigboibob2568]

Thank you for helping me love coding again. I got in a slump and a bad place and hadn't touched code in months other than at 6th form, just recently one of your adventure game videos popped up and it reminded me of what I loved about coding. I didn't ever want to do it again until I saw your video and now I'm back at it picking up an old project and I won't give up until it's finished

[@LearnWithHuw]

That's great to hear! Thanks for letting me know. Good luck with your project! Best wishes Huw

[@fpostgate]

I needed that. Thanks. Just had an issue with this with a new communicating sensor. We were not recognizing the first bit as -128, but as 128, so numbers were coming in just below zero and giving us real weird values. Changing the data type to a signed integer fixed the problem.

[@NikolaNevenov86]

Great, the concept that all we should remember is that the leftmost bit adds it's value when it turns the sign in to negative, while all the rest are adding to that negative number is a really nice and simplified explanation of how to look at signed bits. But again I'll poke you about the two's compliment. Because right now logically, to someone who doesn't know, a `-1` should be 10000001 if we are using the leftmost bit for + or -. More over why should the leftmost bit add it's value when in negative but not when positive. The explanation of the one's compliment and two's compliment and it's attempt to solve the issue where the leftmost bit is used for the negative or positive sign, should be a future topic for a video, to cap the whole bit series. Because there is a reason to the madness(as they say), which explains why -1 is 11111111 and not 10000001, why the negative range for the singed number is +1 more than the positive.

[@LearnWithHuw]

Thanks for the feedback. My aim is always to keep explanations as simple as they can possibly be made. Too much detail can confuse (and depress!) students. That said, there are more lessons yet to come in this series and the next one may be the most complicated so far!

[@Nevertoolatetostart]

I can't thank you enough for the perfect explanation. It helped me so much.

[@LearnWithHuw]

Many thanks. I'm pleased it was useful.

[@RazzelMedia]

Amazzing video, thank you so much for your work. You have no idea how helpful the video was :)

[@LearnWithHuw]

Many thanks.

[@luiscermeno986]

What a great explanation. Thank you!

[@LearnWithHuw]

Many thanks for your comment.

[@HermesSoilder]

Incredible explanation!!

[@LearnWithHuw]

Many thanks.

[@CauseOfFreedom-mc7fx]

Thanks for this explanation

[@LearnWithHuw]

You're very welcome. Glad to help.

[@meghanlawrence5398]

Which he had the Excel spreadsheet available to download

[@mohamedshehata7526]

i loved the video

[@LearnWithHuw]

Many thanks.

[@__hannibaal__]

Thank you; for bitter understand of pointer and stack and heaps; I use one pointer to first declared variable , and ability to change other variable value only by offsetting these pointer, and any king of variable char , struct …, but function !!!! Is Not Working I’m looking to map the whole memory, As We Do in mathematic(topology),