Purview(noun) the body of a statute, or that part which begins with  Be it enacted,  as distinguished from the preamble. Purview(noun) the limit or scope of a statute; the whole extent of its intention or provisions. Purview(noun) limit or sphere of authority; scope; extent.
The difference between megabytes and gigabytes is the number of bytes that make up each unit and the amount of data they hold. A megabyte holds a million bytes, or about 1,000 kilobytes. A gigabyte holds about a billion bytes, or around 1,000 megabytes. Continue Reading.
There are (from largest to smallest): Gigabytes(GB), Megabytes(MB), Kilobytes(KB), Bytes and Bit. But that really doesn't tell you much other than a gigabyte is bigger than a kilobyte. Exact File Size Conversion. Bit Smallest unit of measurement. Byte 8 bits. Kilobyte (KB) 1024 bytes. MegaByte (MB) 1024 kilobytes (KB). GigaByte (GB) 1024 megabytes (MB). To convert these in exact figures, it is best to use a calculator designed for this purpose.