[Ham-Computers] Can a mouse & kbd share a port?

[FoggyAsEver MacUser]

I managed to get my hands on a laptop PC a while ago
from a swap.  It barely runs Windows, but it's good
enough for the ham shack.  So far, it seems very low
on radiated spurious junk, which is what I'd hoped for
from a laptop.

But - with my old, crusty fingers, I would like to use
an external mouse and keyboard.

The back of the laptop has a DIN connector with an
icon of a mouse and keyboard.  I can plug either into
the machine, and it successfully uses it.  Can I use
both somehow in the same port?  Is there some sort of
Y-adapter that would allow this?  I thought this was
essentially a regular serial port dedicated to
mouse/kbd usage, so you really couldn't share both,
unless you added a SW patch?

If I can't share the port betwen both, maybe I can
take advantage of the other serial port?   Besides the
mouse/kbd port, there's a COM1 port.  Is it possible
to plug kbd into the mouse/kbd port, and the mouse
into the COM1 port?

No desire for an external monitor, as I think that's
what's saving me from the RFI.

Thanks for any help.

FM

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