On the back there are two 25 pin auxiliary RS-232 ports to connect either a serial printer or modem, one RS-422 port, a parallel printer port and another RS-232 port for the console.

As far as I can find, the RS-422 functionality was never implemented in software

Interior inspection:

Inside, the system was remarkably clean, especially considering there is a fan installed:

Power supply

Now that the computer was fully apart, the first step was inspecting and testing the power supply.

Everything looked healthy, no physically leaking capacitors or explosive Rifa's. Next I tested all the voltage rails and everything was set for a first power on.

Logic board

The logic board is quite compact for the amount of features it contains, aside from the Z80 CPU and 128K of RAM it also contains a floppy and MFM hard drive controller as well as the controllers for the terminal and other peripherals.

Also included is a 40 pin expansion bus which breaks out most of the CPU bus, which unfortunately never seems to have been used.

Hard drive

Morrow calls this by its older name, a Winchester drive. It's an 11 megabyte model, which gives this computer it's model name. It was made by Computer Memory and uses a standard MFM interface.

I initially started the drive separately from the computer, just to see if it would spin up and seek.

Floppy drive

The floppy drive is a double-density, double-sided (360K) model made by Shugart, using their original interface.

Initially it was a bit noisy and although it did work properly, after some lubrication it was perfect.

Terminal interface

To interface with the computer, you have to connect an RS-232 terminal to the Terminal interface. The following are the default settings: 9600 Baud, 7 data bits, 2 stop bits, no parity, full-duplex (no local echo).

When the computer boots, it automatically starts a 'Copilot' program, which allows for easily starting built-in programs and utilities, as well as exiting to the standard CP/M prompt.