File sizes
File sizes:
Measure how much data a computer file contains or how much storage it consumes.
When a file is written to file system, it may consume slightly more disk space than the file requires.
File system:
Used to control how data is stored and retrieved.
What is the need of File system?
Information place in storage medium would be one large body of data.
No way to tell where the information starts and stops.
Why the file system size is more when compared to files?
Rounds the size up to include any unused space left over in the last disk sector used by file.
What is sector?
Smallest amount of space addressable by file system.
Units of file system:
Bytes.
What is the maximum file size?
Depends not only on the capacity of file system, but also on the no of bits reserved for storage of file size information.
File sizes:
| Name | Equal to |
|---|---|
| 1 Byte | 8 bits |
| 1024 Byte | 1 KB |
| 1024 KB | 1 MB |
| 1024 MB | 1 GB |
| 1024 GB | 1 TB |
| 1024 TB | 1 PB |
| 1024 PB | 1 EB |
| 1024 EB | 1 ZB |
| 1024 ZB | 1 YB |
Compressing file size of image:
Original image.
See the properties and resolution.
Compress the images.
Change the width and height.
Optimize the image and download it.
After downloading the image check the file size.
How to know the file size of folder?
Check the properties of file size.
