Understanding Hexadecimal (including HTML/CSS color codes)

[@karthibalaji3817]

Whenever Gary uploads something ! abruptly my hand will hits the like button and watch the video...

[@1MarkKeller]

Agreed!

[@wiredtech6082]

Hay please support me world's best cheap keyboard and mouse set is coming soon

[@vaibhavdabwalv1]

I was watching an video about how minus world glitches in Mario Bros were caused by change in hexadecimal values. Now I can fully understand why they meant. Thanks Gary

[@Standbackforscience]

Congrats on breaking 100K subs!

[@1MarkKeller]

100K students for the Professor!

[@YounesLayachi]

You mean 0x64k subs :))

[@JoeWong81]

Thanks a lot for that refresher Gary!! next time please do a tutorial on binary bit manipulation as this is a popular topic on technical interviews.

[@pooyafitness]

Thank you. I knew it in school but I had forgotten about it

[@johnbamber7374]

I'm getting 271 for 0xFE when I do the math[(16×16¹)+(15×16⁰)], what am I doing wrong?

[@DodoGTA]

0-9 and A-F 0xFF=255 0x00=0

[@1MarkKeller]

*GARY!!!* *Good Evening Professor!* *Good Evening Fellow Classmates!*

[@fatehyabali]

*Mark!*

[@muhammedadiljahfar5512]

SUP MARK

[@felixmuchiri118]

interesting never really thought about anything past binary codes. hey Garry, can we have more speed test G comparisons with more midrangers since in our markets, no one really buys flagships. take the best selling midrangers and budget devices once in a while, like the redmi note 7 pro vs real me 3 pro, the real me 3 vs redmi note 7, Samsung A20, vs A30 vs A50 vs huawei and honor devices vs nokia etc. as we've seen flagships mostly have the snapdragon 855 and perform generally the same, it would be interesting to see this budget phones that pack snapdragons, exnos, mediatek and kirin processors with different nodes and different ARM designs generatons with different GPUs to boot. please please do this for us!

[@autohmae]

What I'm missing in this explanation is the bits representation, showing the individual bits. Seeing why a byte is FF would have been really useful as part of the explanation I think. Also you mentioned CSS and called it: Style Script, but it's called: (Cascading) Style Sheet.

[@1nxpired]

I can look at that cursor all day xD

[@1MarkKeller]

My cat says, "Welcome to my world of laser pointers"

[@Speak_Out_and_Remove_All_Doubt]

Why did they choose to add 6 symbols after the 10 numbers? Why not more than 6 if it makes bigger numbers take up less space?

[@divingradish]

1 hex digit is representing 4 bits of binary number. It is take up less space to write in the context of computer world. I believe it is common for people to work with half of a byte (low bits/high bits) in computer world, so it is kinda practical.

[@robertlawrence9000]

I have to use this at work sometimes for addressing. Nice explanation but I'm sure it's over many peoples heads. I don't use it often so when I do I have to stop and think about it.

[@pweddy1]

Now that we are moving to 10,10,10 bit color depth this will start to make less sense to use hex in HTML. It's really only tidy to use hex on multiples of 4 bits. Just like it was only tidy to use octal on DEC machines that has word sizes like 18bits.

[@GaryExplains]

Even at 10 bits it is still better to use hex than decimal. 12 bits is 3 hex digits, so moving to that would work for 10 bit and provide future proofing.

[@kishanramani]

Good video, I enjoyed it , thanks

[@soraaoixxthebluesky]

Why does 0x0 thing looks somewhat similar to assembly language. I might be wrong tho.

[@vladutcornel]

An Assembly language is just a form of textual representation of machine code, which is binary (1 and 0). Converting from base 2 to base 16 and back is very easy (See Michael's table above). Operators are tipicaly replaced by keywords (That's why you see something like "ADD 69 9F", not "A6 69 9F" - I don't actually know the x86 instructions).

[@soraaoixxthebluesky]

Thank for all of you guys replies.

[@odd07]

good

[@manasaurs5634]

I need html code for input type as hexadecimal

[@MrMysticphantom]

Who remembers when IPv6 was meant to be the rage and give every toaster its own unique ip address... then..... didnt reaaaally happen as much except with the big tech who are also on the forefront (so..not oracle) like Google & MS

[@YounesLayachi]

Hecks 'a decimal !

[@draa0gon]

Please O N E E T E R N I T Y L A T E R let me explain.

[@sydmichel]

As you sound English, I'd like to point out that you have spelled Colour wrong in the description.

[@YounesLayachi]

It irritates me whenever apps don't use hex for colour coding

[@MiMi-zf7gd]

I feel like im stupid af cause I can't comprehend this all I hear is numbers and letters 😎👌

[@myZAN]

Come on. More Speed Test G. At least Android-x86 running in a x86 machine vs flagship phones.