File size

• File size measure the size of a computer file.
• It is measured in bits or bytes.
• The actual amount of disk space consumed by the file depends on the file system.
• A file system support maximum file size depends on the number of bits reserved to store size information and the total size of file system
• Binary prefixes for powers of 2^10 (1,024) and decimal prefixes for powers of 10^3 (1,000) are used.

Limitation

• File size are limited by the file system.

• In Gmail we can not more than 25 MB data.

• In FAT32 File System more than 4GB data not allowed to back up.

My notes