which of the following is the smallest unit of measure? megabyte, petabyte gigabyte,
A byte is a group of bits, typically 8 bits in length. â¦ A byte is also the smallest unit of storage in a computer's memory, each of which has a unique address. A kilobyte (KB) is 2^10 bytes which is 1,024 bytes. A megabyte (MB) is 2^20 bytes which is 1,048,576 bytes or 1,024 KB. A gigabyte (GB) is 2^30 bytes which is 1,073,741,824 bytes or 1,024 MB. A terabyte (TB) is 2^40 bytes which is 1,099,511,627,776 bytes or 1,024 GB.
The petabyte is a multiple of the unit byte for digital information. The prefix peta indicates the fifth power of 1000 and means 10 15 in the International System of Units (SI), and therefore 1 petabyte is one quadrillion (short scale) bytes, or 1 billiard (long scale) bytes. The unit symbol for the petabyte is PB. 1 PB = 1000000000000000B = 1015bytes = 1000terabytes.