Question about Keyboards and mice for linux machine

[rahul b jain cs student <rbj2 oak njit edu>]

Hi,

I have a linux server which was bought from Penguin Computing (Atlus
130). I wanted to purchase keyboards and mice for the same. I had been
looking on the net for the past week but was getting confused.

My questions are 

1. how do i know that a particular keyboard and mice will work
with my linux server ?
2. If i buy a keyboard and mice whose tech note say that they are
compatible with windows 3.1 or higher, OS/2, PS/2 keyboard port or
AT-style keyboard port, do you think it would work ?

Thanks in advance,
Rahul.