Every data conversion at all times to check the information, always remember not very clear. Available now just do the next summary
First introduced two storage unit: bits, bytes
Bit: "bits ( 'bit)" computer is the smallest unit of data. Every state can only be 0 or 1.
Words: "word" composed of several bytes, called digit word length, different grades of machines have different word lengths. For example an 8-bit machine, it is equivalent to a 1 byte word, the word length is 8 bits.
KB: 1024 bytes
MB: 1,024 KB
GB: 1,024 MB
TB: 1,024 GB
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However, most of the phone to say how much GB is generally counted in accordance with the size of 1000MB.