UNIX Device I/O

By Baldwin Sung on May 9, 2007 11:29 AM | 0 Comments | 0 TrackBacks

Character Files
- corresponding to haracter-based or raw device access
- character special files are used for unbuffered data transfers to and from a device
- example: a terminal
- example, disk: /dev/rdsk/c0t0d0s0


Block Files
- corresponding to block I/O device access
- block special files are used when data is transferred in fixed-size chunks known as blocks
- example: most file I/O
- example, disk: /dev/dsk/c0t0d0s0

* From O'Reilly Essentail System Administration - 3rd Edition

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