Real PDP11 model question

[Megan]

>How big is a PDT-11/110?  My PDT-11/150 is quite a bit larger than a 
>DECmate III.

Both the PDT-11/110 and PDT-11/130 are built into VT100 cases, so
that is what they are the size of.

The PDT-11/150 is a separate box which is an 8" floppy drive wide,
about 12" high and about 14" deep.

>To the best of my knowledge the smallest possible PDP-11 made out of 
>real hardware would be a 4-slot dual-height backplane, with a 
>dual-height CPU (ideally a PDP-11/73), DLV-11J (providing console 
>port), 3rd party disk controller w/bootstrap (preferably SCSI).  That 
>would leave room for one additional dual-height board.  You'd have to 
>figure out the power-supply and how to wire up any disk or tape 
>drives.  I'd build something like this, if I had the backplane, but I 
>don't.

You forgot memory...

And the box exists, it is a BA11-VA (the Shoebox).

>The smallest DEC PDP-11 that I'm aware of is the PDP-11/03, but 
>you've got to add a external drive of some sort.

But that is a 4 x 4 backplane... so it is 19" wide (with the
attached power supply).

                                        Megan Gentry
                                        Former RT-11 Developer

+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com         |
| Member of Technical Staff      |        megan at savaje.com          |
| SavaJe Technologies, Inc.      |             (s/ at /@/)             |
| 100 Apollo Drive               | URL:     http://world.std.com/~mbg/ |
| Chelmsford, MA 01824           | "pdp-11 programmer - some assembler |
| (978) 256 6521   (DEC '77-'98) |  required." - mbg            KB1FCA |
+--------------------------------+-------------------------------------+