How Much Memory Does a 2 GB SD Card Have?
Many computer users notice that hard drives, memory cards and electronic devices seem to be "missing" storage space based on how much memory the manufacturer promises vs. the amount of space detected by Windows. In reality, this memory is not missing; the discrepancy lies in how a gigabyte is calculated. An SD memory card with an advertised capacity of 2 GB will have about 1.863 GB of storage on a Windows computer.
Other People Are Reading
-
Decimal Gigabyte
-
Manufacturers of SD cards and hard drives use a decimal gigabyte to calculate a product's capacity. A decimal gigabyte equals exactly 1 billion bytes.
Binary Gigabyte
-
A computer operating system such as Microsoft Windows measures storage capacity using binary gigabytes rather than decimal gigabytes. One binary gigabyte equals 1,073,741,824 bytes. Because of this different method of calculation, an SD card with an advertised 2 GB (decimal) capacity has a 1.863 GB (binary) capacity.
-
How to Calculate
-
When purchasing a hard drive or SD card, you can expect to get about 93 percent of the advertised capacity, because a decimal gigabyte is about 93 percent the size of a binary gigabyte.
-
References
Resources
More Like This
Comments
-
Does a 32GB SD card have the same capacity as a 32GB hard drive?
