TF card only dozens of M what's going on

after buying the TF card after installing the Linux system many novices often ask: I bought the TF card is **g how is it so small now,It's only more than 10 MB? In Windows or Linux under the TF card display and the actual card memory is too poor, in fact, this problem
It's easy not to be surprised that Linux partitions are not visible under Windows after the TF card is installed on the Linux system. after the Linux system is installed, the TF card will be partitioned into three formats: FAT32, EXT3, SWAP2:
The EXT3 zone belongs to the Linux file system, just like the win's system disk C disk:
SWAP2 area is the virtual memory area of Linux, mainly when the physical memory is not enough to do the cache:
The above two are partitions of the Linux system.
FAT32 is a very small part of the novice to see under Windows, but on the other hand, the Linux system does not see the FAT32 partition.

TF card only dozens of M what's going on