Storage Capacity: The maximum amount of data that can be stored on a storage device, typically measured in kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), petabytes (PB), exabytes (EB), and so on.
1KB = 2^10 B = 1024B; The number in parentheses is the exponent of 2 (i.e., to the power of).
1MB = 2^10 KB = 1024KB = 2^20 B;
1GB = 2^10 MB = 1024MB = 2^30 B.
1TB = 2^10 GB = 1024GB = 2^40 B
1PB = 2^10 TB = 1024TB = 2^50 B
1EB = 2^10 PB = 1024PB = 2^60 B
1 Byte (equivalent to a single English letter; your name is roughly 6 Bytes (6B)).
Kilobyte (KB) = 1024B, equivalent to the content of a short story.
Megabyte (MB) = 1024KB, equivalent to the text content of a short novel.
Gigabyte (GB) = 1024MB, equivalent to the sheet music content of Beethoven’s Fifth Symphony.
Terabyte (TB) = 1024GB, equivalent to all the X-ray image data in a large hospital.
Petabyte (PB) = 1024TB, equivalent to 50% of the content held in all U.S. academic research libraries.
Exabyte (EB) = 1024PB; 5EB is equivalent to all the words ever spoken by humankind to date.
Zettabyte (ZB) = 1024EB, equivalent to the total number of grains of sand on all the world’s beaches.
Yottabyte (YB) = 1024ZB, equivalent to the sum of all microcells in 7000 human bodies.