Xiaofan Chen wrote: > To me PS/2 ports are necessary because sometimes Linux > still has problems with USB mouse and keyboard during > setup or grub screen. > My desktop computer doesn't have a PS/2 port (or a serial port for that matter). The lack of a PS/2 port is a problem, since I also happen to have a keyboard addiction problem. Specifically, I'm addicted to the IBM Type M keyboard. ( http://www.pcworld.com/article/147939/inside_the_worlds_greatest_keyboard.html ). With a Type M, I can easily clock over 80WPM on a typing test, and if I'm composing an email, it's more like 100WPM or more. I'm *much* slower on other keyboards. Because they are fairly rare anymore, I've been collecting them. I've accumulated hopefully a lifetime supply of them from various sources (State Gov't surplus sales mostly). The problem? They are all PS/2. And even worse, the keyboard draws so much current (112mA), that many USB adapters don't work reliably. I bought a "quality" belkin adapter, and it would reset every minute or so, loosing a few characters. I ended up buying one from clickykeyboards.com (who themselves are Type M fanatics), to finally get one that would work. -forrest -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist