On Mon, 2006-12-04 at 21:16 +0800, Xiaofan Chen wrote: > On 12/4/06, Tony Smith wrote: > > A Dell laptop I had recently had both a serial & a parallel port, but no > > PS2. I thought that was odd. Had to buy a USB/PS2 converter. Since > > laptops have USB, NIC & modems ports, what are people plugging into them? > > My old Dell Inspiron 600M at home and pretty-new Dell Latitude D610 at work > both have serial/parallel port. > > Why do you need PS/2? There are plenty of USB mouse/keyboard. Many "portable" devices use the PS2 port for power (when USB isn't enough). I have a serial GPS unit and a USB CD writer that both rely on the PS2 port for power. There are many other examples. TTYL -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist