Are the IBM/XT, IBM/AT and PS/2 computers hardware Y2K
compliant?
PC/XT class machines generally have no clock hardware in them as
standard.
DOS/whatever simply use a regular interrupt to update a software clock, so you
need to know if the OS you're using is compliant.
This is only true if you
look at the very basic unit, but
clock-cards have been popular back than. Either as single
function card (rather rar) or within a multi function card.
THEREFORE,
The IBM XT (not clone, IBM) is compliant, but it is always possible to
purchase third party aftermarket software and hardware non-compliance.