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Binary System - Coggle Diagram
Binary System
ASCII code
The code includes 256 different characters.
In 1960 there were 128 codes, 33 for controls and the other 95 for characters.
Binary digits to letters and numbers.
To decode a rule you have to:
Separate Bytes
Binary to decimal
Decimal to characters
In 1970 the extended ASCII code was created.
How it works?
System of counting
Each digit represents an increasing power of 2.
Microtransistores
Number 1 when switch is on and 0 when switch is off.
Nowadays computer can reference up to 2 lines of 8 transistores.
Greater than 1 = New digit
Images
Creation: Digital images
Problem to solve: How to show a picture on a screen.
Solution Formula: Break the image down into data.
Pixels: Tiny dots of different colors that make your screen.
Resolution: DImension in which you can measure how many pixels there are on your screen.
Same amount of pixels on computers and phones but differents space.
In a file you store red, green and blue values in triplets that make a pixel.
The values can go from 0 to 255.
Each color channel is represented by a byte.
1 more item...
One file contains millions of this RGB triplets.
First digital image in 1957
Sound
Every sound is a series of vibration in the air.
Vibrations can be represented graphically as a waveform.
Different points in a waveform are represented by numbers so in this way sound break down into data.
If you want higher quality sound, you would pick 32 bit audio or an 8 bit audio.
More bits means a higher range of numbers.