Most laptops hide a security slot you probably never noticed.
A fundamental of file systems since their inception has been their locking mechanisms. These exist so that different users and applications working on the same file (or region of a file) ...
People usually forget to lock their desktops when they leave their desks for some time and an open desktop could be a real threat and could have serious consequences. One should always lock the screen ...
To avert the problems associated with the file locking mechanism, POSIX introduced record locking via the fcntl() syscall (the pre-POSIX lockf() and flock() syscalls provide the same functionality but ...