PPT Slide

Turns out the file naming conventions and access methods (I/O system calls) are a useful abstraction for accessing all sorts of objects, including: files, directories, terminals (keyboard, mouse, etc.), disk, process information (see “man proc”), etc.

UNIX device files (OS objects treated as file objects) traditionally are created and managed in the directory /dev. Try an “ls -l” of /dev sometime! Device file naming conventions are as varied as UNIX implementations, unfortunately.

Turns out the file naming conventions and access methods (I/O system calls) are a useful abstraction for accessing all sorts of objects, including: files, directories, terminals (keyboard, mouse, etc.), disk, process information (see “man proc”), etc.