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Ethel's kind of right but, imho, not really.
First of all, there is the binary counting system and the decimal counting system. Decimal goes from 0 to 9 (10 numbers), and is what we use every day as humans. Computers use binary, 0's and 1's. The manufacturers always quote their numbers in decimal, yet the computer has to use the capacity in binary, so there is a slight difference.
To find the difference divide your number in GB by 1024^3:
1,000,000,000 / 1,073,741,824 = 931MB
This usually accounts for the main reason of the drop in capacity. The difference is due to the way the file system is constructed on the disk, plus the fact that the memory stick's capacity is not precisely 1GB.
First of all, there is the binary counting system and the decimal counting system. Decimal goes from 0 to 9 (10 numbers), and is what we use every day as humans. Computers use binary, 0's and 1's. The manufacturers always quote their numbers in decimal, yet the computer has to use the capacity in binary, so there is a slight difference.
To find the difference divide your number in GB by 1024^3:
1,000,000,000 / 1,073,741,824 = 931MB
This usually accounts for the main reason of the drop in capacity. The difference is due to the way the file system is constructed on the disk, plus the fact that the memory stick's capacity is not precisely 1GB.
You don't need any pre-installed software to make it do anything.
There is a discrepancy between the way manufacturers describe their devices, and the way the size is properly calculated. There are 1024 Mb in a Gb, but (just as with hard drives) the manufacturs calculate by pretending that there are 1000 Mb in a Gb.
Any other variations in size will be due to the formating of the drive.
For example, formating my 1 Gb drivet gives the following results:
Using FAT gives usable space of 1,039,892,480 bytes (991 Mb)
Using FAT32 gives usable space of 1,038,118,008 bytes (990 Mb)
Using NTFS gives free space of 1,32,283,136 bytes (984 Mb)
There is a discrepancy between the way manufacturers describe their devices, and the way the size is properly calculated. There are 1024 Mb in a Gb, but (just as with hard drives) the manufacturs calculate by pretending that there are 1000 Mb in a Gb.
Any other variations in size will be due to the formating of the drive.
For example, formating my 1 Gb drivet gives the following results:
Using FAT gives usable space of 1,039,892,480 bytes (991 Mb)
Using FAT32 gives usable space of 1,038,118,008 bytes (990 Mb)
Using NTFS gives free space of 1,32,283,136 bytes (984 Mb)
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