What Is A Megabyte-Terabyte- Gigabyte- The Full Information

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What Are Megabytes-Terabytes- Gigabytes- The Full Information

Such terms are usually used in the world of computers to describe disk space, data storage space, and system memory space.mega1

For example, only a few years ago hard drive space were described using the term Megabytes. Today, Gigabytes is the common term being used to describe the size of a hard drive. In the not so distant future, Terabyte will be a common term as hard drives become bigger in terms of storage capacity.

But What Are These Measures?

It may get quite confusing here because there are at least three accepted definitions of each term.

To IBM Dictionary of computing, when used to describe disk storage capacity, a megabyte = 1,000,000 bytes in decimal notation. But when the term megabyte is used for real and virtual storage, and channel volume, 2 to the 20th power or 1,048,576 bytes is the appropriate notation.

And to the Microsoft Press Computer Dictionary, a megabyte means either 1,000,000 bytes or 1,048,576 bytes.

But to Eric S. Raymond in The New Hacker’s Dictionary, a megabyte is always is 1,048,576 bytes on the argument that bytes should naturally be computed in powers of two. So which definition does the public relate to?

Referring to a megabyte for disk storage, hard drive manufacturers imply the standard that a megabyte is 1,000,000 bytes. That means- when you buy an 80 Gigabyte Hard drive you will get a total of 80,000,000,000 bytes of available storage memory.

In here where it gets confusing, because Windows uses the 1,048,576 byte rule so when you look at the Windows drive properties an 80 Gigabyte drive will report a capacity of 74.56 Gigabytes and a 250 Gigabyte drive will only result in 232 Gigabytes of available storage memory, and a a 750GB drive is only  698GB.

Here is a related chart for your calculation:

Processor or Virtual Storage        And Disk Storage  

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Hope this was of a great help, for further assistance please feel free to write me using the comment box below

Sincerely

Sam Ammouri

3781621t

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