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.if n .pH g7.if @(#)if	40.4 of 10/10/89
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.if \nX=0 .ds x} if 7 "" "\&"
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.SH NAME
\f4if\f1 \- 3B2 computer Floppy Disk Subsystem
.SH DESCRIPTION
The 3B2 computer floppy disk subsystem consists of one or more diskette
drives.
The medium contains 1422 blocks. The files
\f4c\f2n\f4d\f2n\f4s0\^ ...\^ c\f2n\f4d\f2n\f4s7\f1
refer to sections of the floppy disk drive.  This slicing allows the
media to be broken up into more manageable pieces.
.PP
The
\f4/dev/dsk\f1
files provide
access to the disk via the system's normal
buffering mechanism.
There is also a ``raw'' interface
which provides for direct transfer 
of a specified number of bytes between the disk
and a location in the user's address space.
The names of the raw
disk files
are in directory
\f4/dev/rdsk\f1
and are the same as the corresponding
\f4/dev/dsk\f1
files.
In raw \s-1I/O\s0 the read or write must begin on a word boundary;
transfer counts can be as small as a single byte.
.PP
.SH FILES
\f4/dev/dsk/*, 
.br
/dev/rdsk/*\fP
.SH SEE ALSO
Appendix A of the \f2System Administrator's Guide\f1 for tables
showing the default disk partitioning of a variety of manufacturers'
hard disk units.
.Ee
