- File size is the measure of a space takes on a storage medium such as a computer hard drive.
- File size says the size of a computer file.
- File sizes generally measured in the Kilo Byte(KB),Mega Byte (MB),Giga Byte(GB),Tera Byte(TB),Peta Byte(PB).
BYTE :
- One byte means group of 8-bits.
BIT :
- One bit means 0 (Off ) or 1(On).
Difference Between File Sizes :
Name
|
Size
|
IEC Binary Name
|
Size
|
KiloByte(KB)
|
10^3
|
KibiByte(KiB)
|
2^20
|
MegaByte(KB)
|
10^6
|
MebiByte(MiB)
|
2^20
|
GigaByte(KB)
|
10^9
|
GibiByte(Kib)
|
2^30
|
TeraByte(TB)
|
10^12
|
TebiByte(TiB)
|
2^40
|
PetaByte(TB)
|
10^15
|
PebiByte(PiB)
|
2^50
|
ExaByte(TB)
|
10^18
|
ExbiByte(EiB)
|
2^60
|
ZottaByte(TB)
|
10^21
|
ZebiByte(ZiB)
|
2^70
|
YottaByte(TB)
|
10^24
|
YobiByte(YiB)
|
2^80
|
Hierarchy Of The File Sizes :
- 1 Bit = 0 or 1.
- 1 Byte = 8 bits.
- 1 KB = 1024 bytes.
- 1 MB = 1024 kb =1,048,576 bytes.
- 1 GB = 1024 mb = 1,073,741,824 bytes.
- 1 TB = 1024 gb = 1,099,511,627,776 bytes.
- 1 PB = 1024 tb = 1,125,899,906,842,624 bytes .
Limitations For File Sizes:
- File sizes are limited by the file system that is used and its implementation. Here are details on the common file systems:
FAT16
|
FAT32
|
NTFS
|
|
Maximum File Size
|
2^32-1 Byte
|
2^32-1 Byte
|
2^64-1KB |
Maximum Volume Size
|
4 GB
|
32 GB
|
2^64 Clusters
|
Files Per Volume
|
2^16
|
2^22
|
2^32-1
|
Examples :
