What is the difference between KB and Kb or MB and Mb or GB

KB = Kilo Byte
Kb = Kilo bit

MB = Mega Byte
Mb = Mega Bit

GM = Giga Byte
Gb = Giga Bit

1 Byte = 8 Bits

Always use KB/MB/GB with file size
200KB, 3.65MB, 3.44GB

Always use Kb/Mb/Gb with Data speed
Like internet speed, MP3 bit rate etc
airtel 4g 40Mbps, Dial-up connection 256kbps etc

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