Introduction to file system
FAT, NTFS, CDFS
Compression
Encryption
FAT 32 (File Allocation Table)
Advantages:-
More robust then FAT16
Enables smaller allocation units than FAT16 (in Windows 2000)
Supports volumes up to 32 GB in Windows 2000
Supports long file names
Disadvantages:- Limited file and folder security and no auditing
Cannot decrease cluster size
NTFS (New Technology File System)
NTFS Features:
File/folder level security
Compress
Encryption
Quotas
Reduced fragmentation
Hot fixing
Volume shadow copy services is a feature of Windows 2003 & above only
Separate recycle bin for each user
CDFS (Compact Disc File System)
CDFS is a file system used for storing data on CDs
It is a standard published by the International Organization for Standardization (ISO) and is also known as "ISO 9660"
Discs that store data using the ISO 9660 standard can be recognized by multiple platforms, including Windows, Macintosh, and Linux systems
The CDFS standard is useful for burning discs that will be shared between multiple computers Compression
Two types of compression, NTFS compression and Compressed (zipped) folders
Compressing files, folders decreases their size and reduces the amount of space on storage devices
Encryption
The process of coding plain text to create cipher text is called encryption and the process of decoding cipher text to produce the plain text is called decryption
Two types of encryption: Symmetric key encryption and Public (Asymmetric) key encryption
Algorithms that use the same key for encrypting and for decrypting are called Symmetric- key encryption Algorithms that use different keys are called Public (Asymmetric) key encryption
FAT, NTFS, CDFS
Compression
Encryption
FAT 32 (File Allocation Table)
Advantages:-
More robust then FAT16
Enables smaller allocation units than FAT16 (in Windows 2000)
Supports volumes up to 32 GB in Windows 2000
Supports long file names
Disadvantages:- Limited file and folder security and no auditing
Cannot decrease cluster size
NTFS (New Technology File System)
NTFS Features:
File/folder level security
Compress
Encryption
Quotas
Reduced fragmentation
Hot fixing
Volume shadow copy services is a feature of Windows 2003 & above only
Separate recycle bin for each user
CDFS (Compact Disc File System)
CDFS is a file system used for storing data on CDs
It is a standard published by the International Organization for Standardization (ISO) and is also known as "ISO 9660"
Discs that store data using the ISO 9660 standard can be recognized by multiple platforms, including Windows, Macintosh, and Linux systems
The CDFS standard is useful for burning discs that will be shared between multiple computers Compression
Two types of compression, NTFS compression and Compressed (zipped) folders
Compressing files, folders decreases their size and reduces the amount of space on storage devices
Encryption
The process of coding plain text to create cipher text is called encryption and the process of decoding cipher text to produce the plain text is called decryption
Two types of encryption: Symmetric key encryption and Public (Asymmetric) key encryption
Algorithms that use the same key for encrypting and for decrypting are called Symmetric- key encryption Algorithms that use different keys are called Public (Asymmetric) key encryption