TM (IV)                      6/12/72                      TM (IV)

NAME            tm -- TM-11/TU-10 magtape interface

DESCRIPTION     mt? is the DEC TU10/TM11 magtape.  When opened

                for reading or writing, the magtape is rewound.

                A tape consists of a series of 512 byte records

                terminated by an end-of-file.  Reading less than

                512 bytes causes the rest of a record to be ig-

                nored.  Writing less than a record causes null

                padding to 512 bytes.  When the magtape is closed

                after writing, an end-of-file is written.

                Seek has no effect on the magtape.  The magtape

                can only be opened once at any instant.

FILES           /dev/mt0        selected drive 0

SEE ALSO        mt(I)

BUGS            Seek should work on the magtape.  Also, a provi-

                sion of having the tape open for reading and

                writing should exist.  A multi-file and multi-

                reel facility should be incorporated.