FAT is a file allocation table that looks like a table of contents in a book.
In the same way, you can directly search for the file you want by looking at the addresses of the files in this file allocation table.
You need to create file tables to save the files. This will make it easier to find. Here is the structure of FAT 16: FAT file system on a hard disk consists of clusters. For example, if the cluster size is set to 32KB, we will save a file of about 20 KB. So you have 12 KB of space left in each cluster.
The next time we save a file, it goes beyond the 12 KB free space and then saves it at the beginning of the next cluster. Due to this vulnerability, the latest technology file system (NTFS) is the smallest cluster size, replacing FAT 16 and 32 with the highest file system.