Unix Interview Questions and Answers

 

How are devices represented in UNIX OS?

All devices are represented by files called special files that are located in/dev
directory. Thus, device files and other files are named and accessed in the same
way. A 'regular file' is just an ordinary data file in the disk. A 'block
special file' represents a device with characteristics similar to a disk (data
transfer in terms of blocks). A 'character special file' represents a
device with characteristics similar to a keyboard (data transfer is by stream of
bits in sequential order).

Posted by:Richards