OT? PS2<->USB

From: Mike Ford <mikeford_at_socal.rr.com>
Date: Fri Feb 9 16:29:21 2001

>Possibly on topic due to the year of introduction
>of the PS2 serial mouse connection... I recently
>picked up a new , fairly low cost mouse (Logitech
>optical) without expecting anything but the PS2
>connector and lo and behold the thing was native
>USB... with a miniscule PS2 adaptor on the end.
>
>My Q is this: is USB somehow an electrical superset
>of PS2, IE the adaptor was passive. Or, did they fit
>some electronics in that tiny thing?
>
>John A.

The smarts are in the mouse. I have a couple devices like this, and they
must have some smarts inside that detects the type of connection, and
behaves correctly. Pretty common in a bunch of cheap devices really.

One caution, mark the doodad, as they may not be the same for different
devices.
Received on Fri Feb 09 2001 - 16:29:21 GMT