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Binary - Coggle Diagram
Binary
Numbers represented in binary
Bit - Binary digit (1 or 0) transistor open / close
Nibble - 4 bits
Byte - 8 bits
Kb - Kilobyte 1000 bytes / 8000 bits
Mb - megabyte 1,00000 bytes
GB
TB
128, 64, 32, 16, 8, 4, 2, 1
Sounds
AND (analog to digital)
Microphone
DAC (Digital to analog
Loud Speaker
Headphones
Sound card (Analog waves are carried through voltages and converted to binary) and transfers it back into a sound wave (not exactly the same)
Sampling (Sampling Frequency)
Stereo channel = 2 channels
good but not exact representation of sound waves
Sound File Size = Bitrate x Sample Frequency x Length Of Sound
Character Representation
Examples: "A", "!", "5","Hello" etc
Stored in Binary using a Character Set. E.G ASCII (7 Bit character set)
Example: 00111000 --> A
Every character has a binary code
E.G: Extended ASCII (8 bits / 256)
Trade Off - Fewer Characters (Stay smaller)<-----------> (get bigger) More Characters
Unicode - 16 bit character set. Enough for every living and dead language.
Images
Vector images: Binary instructions to re-draw the image.
Bitmap Images: Binary contains colour information for each pixel.
Picture File Size = Width x Height x Colour Depth
Hexadecimal
Hex: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
Deanary: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
Conversions are on other mindmap specifically for conversions