How does a CPU work?

The Central Processing Unit (CPU) is at the heart of all our computing devices: desktops, laptops, and smartphones. But how does it work? Please, let me explains!

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What is a CPU?
How a CPU works
How does a CPU actually work?
How do CPUs work?
What is a Central Processing Unit (CPU)?
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Music:

[di]

Gary, you do a better job at explaining how a CPU works in 8 minutes than my college professor did in a whole semester back in college.

[Jimthetyreman]

Wish you had been my science teacher at school!! Looking forward to the next in the series!

[nimrodlevy]

Mr. Gary, Thank for explaining to us mortals such complicated stuff in so coherant way. Thanks, big fan... cant wait for your next video

Always love the CPU related explanations!

[jakejacobs]

I know this is an old video, but I would just like to say, Great Video!! I love the simplicity of your explanations!! Best on YouTube in my opinion👌🏽

[theoyv]

that was very clear thank you for your explanations

[someguy]

This was a fantastic explanation. Thanks so much for making it seem so easy.

[arjunthomas]

Nicely done as always.. cheers Gary.. 👍

[AbdulRehman-okls]

Great Job Gary cant wait for Assembly Language Video.

[TheDavidlloydjones]

Gary's mention of sepecial-purpose torpedo computers takes me back to 1970 or '71. The start of my day around 6:00 a.m. was four newspapers and a bunch of single-page indexes couriered over to me in the Rayburn Building from some place in the Commerce Department down in Virginia. An oddity one day: a bunch of torpedo warheads for sale.

Everybody in my gang had been wanting a computer for a while, and this looked like one way of getting one. Bingo! The whole bunch, 28 guidance systems I think it was, got bought up by some group of university clubs in the Netherlands. Good for them, thinks I.

(A little bit later a high-school kid in Georgia or some place bought an entire multi-stage rocket for next to othing by shopping for surplus through pretty much the same sort of reading I used to do. The police, and then the press, paid him an enquiring visit before all the parts actually got delivered...)

And around that time there was this Ed Roberts guy working on a thingie called an Altair. And this Bill Gates kid had the funny idea of *selling* software...

[epukiro]

Excellent explanation. Love your videos, thanks!

[rost]

How does a CPU work on the hardware level? All the transistors etc. I would really appreciate if you could explain it from a technical point of view! :)
Great video though

[adamkaesberg]

Most informative CPU explanation I have ever watched

[dankhill]

but how do they physically work? I don't understand how information is stored, and somehow exists within bits of metal, and electricity. How does a hunk of metal translate to me playing pubg? Every little blade of grass, every beam of light is being rendered by bits of metal glued imto plastic with a few watts of electricity coursing through it. But the information isn't physically there, so what is it, and how is it done?

[amr]

Can't wait for the next video !!
I hope you explain how physically cpu is working ? And how the cpu understands the machine code ?

[tongrandy]

3:15 sorry i dont quite understand why the program counter is 103 after 101 is executed?

[ramisam]

The best video so far waiting for the next one see you soon!

[mehmetemingungor]

Thank you for this simple explanation with the understandable examples

[dongemus]

Love the channel Gary!
Only suggestion I would make is to get warmer temperature lighting... Or warm it in post. Cheers!

[harshdeepbhatia]

Lovely video sir and love to see the next video.