Modern versions of tools have already started using this method. This means you can still buy your 1 TB drive, but disk utilities should report it as 977 GiB to reflect that the disk utility is using a factor of 1024 for measurement, not the metric, 1000, measurement factor. Enter the GiB and TiB (the other smaller and larger units follow the same nomenclature). So what is to be done? International standards bodies, like the International Electrotechnical Commission (IEC) and International Organization for Standardization (ISO), have created a unit of measurement to account for the difference in usage between true metric and the rough approximation that we have been using in computing. However, as we get larger and larger files, memory, drives, packets, etc., this difference is more and more noticeable. Wow, that is incredibly annoying! Not to mention not really standards-based, which is something the open-source community is all about, right? Essentially, in the computer industry, we have been abusing the fact that 1024 is darn close to 1000. This difference in the units of measure is the difference between 1 TB or 977 GB. However, in the computer world, we don't operate at the power of 10, we operate by powers of two, so for us, 1024 GB = 1 TB. Disk manufacturers use true metric measurements, so 1000 GB = 1 TB. Nowhere, and depending on your opinion, it either is still or was never there! This difference comes from disk manufacturers and operating system programmers using different units of measurement.
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