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Q:

# How many megabytes are in a terabyte?

A:

Measured in binary, a 1 terabyte hard drive has 1,048,576 megabytes of storage space. Hard drive storage space is calculated in bits, and 8 bits of data are in 1 byte; 1,024 bytes equals 1 kilobyte, and 1 terabyte equals 1,099,511,627,776 bytes.

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Although operating systems read the amount of space in a hard drive using the binary method, computer storage manufacturers generally market their hard drives' unformatted capacity in decimal mathematics. Using this method to calculate capacity, an unformatted 1-terabyte hard drive can store 1,000,000 megabytes of data. The International Electrotechnical Commission has introduced the new binary prefixes "mebi," "gibi" and "tebi" to resolve the discrepancy, although they are seldom used.

## Related Questions

• A:

There are 1,000 gigabytes in a terabyte, although the figure may be 1,024 gigabytes in a terabyte, depending on the storage system. With a processor or virtual storage, the extra 24 gigabytes are included. They are not if the figures refer to disk storage.

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• A:

The next largest unit of data storage after the terabyte is the petabyte which is abbreviated PB. Just as a terabyte is approximately equal to 1000 gigabytes, a petabyte is approximately equal to 1000 terabytes. A petabyte contains 1,000,000,000,000,000 bytes which is read as one quadrillion bytes.

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• A:

Two liters are equal to 2 cubic decimeters, or a volume of space measuring 20 centimeters by 10 centimeters by 10 centimeters. A liter is a unit of volume used in the metric system, so 2 liters can also be converted into other measurements of volume.