[CentOS] Best CentOS to install on *old* laptop?

[Bart Schaefer]

I've found an old IBM OmniBook 800 and am curious whether I can get it
going again.  (Currently it boots either Windows 95 or some
then-contemporary version of Slackware.)  The CDROM is external (SCSI,
I think) and the machine won't boot from it, so it'd require a boot
floppy.  Any suggestions?  Or is CentOS entirely the wrong Linux to be
thinking about for this?