School Information Technology Discussion <[log in to unmask]> on
Thursday, March 09, 2006 at 1:56 PM +0000 wrote:
>I had a student take off with a keyboard from a running machine, anyone
>KNOW why it is bad or have any experience or a place to document (I
>looked) that it is potentially damaging to unplug a ps/2 device with the
>"If the pointing device is connected with a PS/2 plug or a PS/2 adaptor
>plug, shut down and turn off the computer, and then unplug the PS/2
>connector from the computerís PS/2 mouse port. "
Well, frequently if a PS/2 mouse or keyboard is unplugged, and then
plugged back in again, the system won't recognise it until the system is
rebooted, so you're going to have to shut it off at some point anyhow, and
if this is what happens to you, and you don't know how to do a shutdown
without the mouse attached, you'll have to shut it down in a disorderly
fashion, holding the powerbutton for six seconds, or something, so there's
a potential for loss of work there. There are mouse drivers that don't
behave this way, however, so this may or may not be a problem on a
particular PC. I know is used to be universally true in early days of the
PS/2, it may not be as true as it once was, but I reckon the manufacturer
probably figures better safe than sorry.
Another consideration is that unplugging is usually followed shortly by
plugging, and frankly PS 2 connector pins are pretty fragille and easy to
mash. Sooner or later, if your student keeps it up, he's going to do some
damage to a mouse.