Question

where does the number 1024 come from in mb to gb cinverter

Answer 1

1GB is 1024 MB. 1024 is 2^10. 1024/8 is 128, allowing for 128 bytes of data.

Answer 2

I don't know if this is the question you're asking, but 1024 Megs is the same as 1 Gig.