SCSI options for PDP 11/23

From: Tom Leffingwell <tom_at_sba.miami.edu>
Date: Wed Feb 27 22:17:32 2002

I have a regular 11/23 in a BA11 11/03 box, which I believe to be 18-bit.
Its a collection of pieces from different systems as many PDPs are I'd
imagine.

Will existing compiled Fortran programs from version 4 run okay and
without recompiling on 5.x? I don't have the source.

On Wed, 27 Feb 2002, Zane H. Healy wrote:

> Is it a /23 or a /23+? I'm not sure how the various controllers might
> handle an 18-bit system vs. a 22-bit system. For RT-11 you need 5.x for
> MSCP (disk) support and 5.4 for TMSCP (tape) support.
>
> I run my /73 with a Viking QDT SCSI controller, and have a RRD-42 CD-ROM,
> TZ30 Tape drive, and two SCSI HD's in removable trays attached to it. Works
> great under both 5.4 and 5.6.
>
> ane
>
Received on Wed Feb 27 2002 - 22:17:32 GMT