    Sentence 1: Why is the value of 1GB  1024MB, why is 1000MB not?    Sentence 2: Where do we use 1'kB  1000 bytes, 1MB = 1000 kB, 1GB {800  MB, 1 B = 1000 GB? And Where do we   KB = 1024 bytes, 1 MB = 1024 KB, 1  ey. 1024 MB, 1TB = 1024 GB?    