Which abbreviation represents a petabyte?

Which abbreviation represents a petabyte?

• A. EB
• B. GB
• C. PB
• D. TB

Answer: (C)

Understanding how data sizes are named helps you interpret storage capacities. A petabyte is a unit in the sequence that climbs from kilobyte, megabyte, gigabyte, terabyte, to petabyte, and then to exabyte. The abbreviation for petabyte is PB, so PB represents a petabyte. In decimal terms, one petabyte equals 1,000,000,000,000,000 bytes, and in binary usage it’s 2^50 bytes (about 1.1259 quadrillion bytes). This makes it larger than a terabyte but smaller than an exabyte. The other abbreviations refer to different sizes: GB is a gigabyte (smaller than a terabyte), TB is a terabyte (smaller than a petabyte), and EB is an exabyte (larger than a petabyte). Therefore PB is the correct designation for a petabyte.

Understanding how data sizes are named helps you interpret storage capacities. A petabyte is a unit in the sequence that climbs from kilobyte, megabyte, gigabyte, terabyte, to petabyte, and then to exabyte. The abbreviation for petabyte is PB, so PB represents a petabyte. In decimal terms, one petabyte equals 1,000,000,000,000,000 bytes, and in binary usage it’s 2^50 bytes (about 1.1259 quadrillion bytes). This makes it larger than a terabyte but smaller than an exabyte.

The other abbreviations refer to different sizes: GB is a gigabyte (smaller than a terabyte), TB is a terabyte (smaller than a petabyte), and EB is an exabyte (larger than a petabyte). Therefore PB is the correct designation for a petabyte.