binary code

[mohannadj.92]

hi, does anyone know how binary code works? the only thing i could find on it is how the alphabet and how numbers are written in binary code.. but what about like images and videos and tv and cameras and sound... how the heck do 0 and 1 get translated into a sound or a video, etc etc can someone give a good detail about it

 

[ScottALot]

Well the next step is understanding physically what the 0s and 1s mean, which I'll explain... past that I can't really explain.

0s and 1s are off and on for transistors. Transistors are switches inside computers and CPUs contain millions and millions of them. You can read up on them here: http://en.wikipedia.org/wiki/Transistor

 

[tremmor]

I think ScottALot is explaining from another point of view. Strictly electronic in nature.
I know what your looking for. The math and comparison in layman terms. Either someone will reply or i will find it. Im whipped and hitting the sack.
try this. its not hard but have to study.
http://en.wikipedia.org/wiki/Binary_numeral_system

 

[Nanobyte]

You cannot explain how something goes from a binary number to a video in 20 words or less!

If you are working in the decimal system, you need 10 numbers, 0-9. That is difficult to put in a machine. If you use the binary system you only need 0 and 1 which could be a switch being on or off, a memory blob being magnetized or not magnetized or electronically as ScottALot described.

There is no simple way for a machine to add say 10 + 3. It used to be done in complex mechanical adding machines. It can be done easily in binary, 1010 + 11 which added in binary give 1101 (8x1 + 4x1 + 2x0 + 1x1) or 13. By various electronic means you can make simple and complicated calculations. That is the basics of computing.

You can make a code such as ASCII so that if you tell a printer a binary number is text, it will convert it to a letter. ASCII 97 (1100001 in binary) if sent to a printer would be decoded as the letter "a". In reality it is far more complicated.

From there you can use binary to build applications do all sorts of things. Let's take another (over-simplified) example. A pixel located in your digital camera's CCD at coordinates row 25 column 732 sees an RGB colour 255,123,17 (shade of yellow) through the lens. You can send that to the picture file as

Row 11001
Column 1011011100
Red 11111111
Green 1111011
Blue 10001

All those values can be stored in memory as bits that are On (1) or Off (0). That stores the colour of just one pixel in the image. Your graphic application can take that data and recreate the pixel on your digital photo.

That's as far as I'm going to go. I hope it's of some help.