Why is the hard disk space smaller than its actual space when purchased? Disk Capacity
Surely you asked yourself one day why the hard disk space is smaller than the actual space, for example, you just bought a 1 terabyte hard disk and when you install it on the computer you find it is 931 GB and not a full 1000 GB, where did the rest of the disk space go? This is what we will answer today.
Explain why you get less hard disk space
Why does the hard disk read less than its actual capacity?
Hard disk manufacturers have fixed rules for distributing space on the disk of the storage unit, which is as follows. 1 GB equals 1000 MB, 1 MB equals 1000 KB, 1 KB equals 1000 bytes, and 1 byte equals 8 bits. Therefore, when manufacturing a storage unit with a capacity of 1 TB, it equals 1000 GB, and this is completely correct and indisputable.
How does the operating system calculate the hard disk capacity?
But the matter is a little different in operating systems such as Windows, as it considers 1 GB to be 1024 MB and not just 1000 MB, and here the dispute between users and sellers occurs. As the size of the storage unit is less than the hard disk space written on it, but the matter is simpler than you imagine, and let us do a somewhat simple calculation, but taking into account that the operating system reads 1 GB = 1024 MB and 1 MB = 1024 KB, and so on in the same manner.
Correcting the concept of why the hard disk space is smaller
All storage units or external hard drives or even new storage units of the SSD type are all treated with the same scale during manufacturing 1 GB (1*1000*1000*1000) but on the other hand the hdd drive or harddisk is read from the operating system 1 GB (1*1024*1024*1024) so the results are different when installing the disk in the computer and its space is less than normal.
Actual disk space calculator site
How to calculate the correct value for any area Capacity Calculator
To calculate the area of any disk correctly, we use this method.
We multiply the total space of any hard disk by 1000 and repeat the process 4 times in a row, for example (1*1000*1000*1000*1000) to get 1,000,000,000,000. After that, we take the space of the hard disk unit and divide it by 1024 and repeat the division 3 times (1000,000,000,000 / 1024/1024/1024) to get the final result of 931 GB, and this is the correct result or value for the storage unit.