A Magtape Handler for the PDP-8/TU20
8-449A

Howard Shapiro and Peter Lemkin, National Institutes of
Health, Bethesda, Maryland

An I/O device handler is given for the TU20/TC58 Magtape.
It enables reading, writing, read compare, advance and
backspace records and writing end of files. It can also sense
the tape's condition.

Minimum Hardware:
4K PDP-8, TU20/TC58 Magtape
Other Programs Needed:
Interrupt handler to dispatch to
the magtape interrupt service
routine
Storage Requirement:
Magtape is 1 page, buffer may be
up to 4K in any field
Restrictions:
Set up for running on interrupt
Source Language:
PAL-10, PAL-D

Catalog:February 1972