9 Feb
2001
9 Feb
'01
8:29 a.m.
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.