Information about computer hard disk drives

Size information
The capacity of a computer hard disk drives and the files it contains can be confusing. Below is a listing of the standards in different size values. It is important to realize that not all manufacturers and developers use these values. For example, a manufacturer may consider a gigabyte as the value of a gibibyte.

Bit
Value of 0 or 1
Nibble
4 Bits
Byte
8 Bits
Kilobit
1,000 bits
Kilobyte
1,000 bytes
Kibibit
1,024 bits
Kibibyte
1,024 bytes
Mebibit
1,048,576 bits
Mebibyte
1,048,576 bytes
Megabit
1,000,000 bits
Megabyte
1,000,000 bytes
Gibibit
1,073,741,824 bits
Gibibyte
1,073,741,824 bytes
Gigabyte
1,000,000,000 bytes
Gigabit
1,000,000,000 bits
Tebibit
1,099,511,627,776 bits
Tebibyte
1,099,511,627,776 bytes
Terabyte
1,000,000,000,000 bytes
Terabit
1,000,000,000,000 bits
Pebibit
1,125,899,906,842,624 bits
Pebibyte
1,125,899,906,842,624 bytes
Petabit
1,000,000,000,000,000 bits
Petabyte
1,000,000,000,000,000 bytes
Exabyte
1018 bytes
Exabit
1018 bits
Exbibit
260 bits
Exbibyte
260 bytes
Zettabyte
1021 bytes
Yottabyte
1024 bytes

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