concurrent file access

Hi
I am fairly new to the Unix environment and need to understand how Unix handles concurrent access to files and how it differs to Win NT.
Any help would be greatly appriciated :slight_smile:

(1) unix uses the concept of inodes to ref\deref. files
(2) unix default File System is UFS which is permissioned
& NFS, which ais a extra layer to make the filesystem\partition visilkbe to other system
(3) UFS & NFS can be unmounted & still made available..DOS\NTFS\NTFS5\FAT32 can't

read UNIS for Dummies for more information & docs.sum.com

jasmine (SCSA & MCSE)