64-bit CentOS 4.2

[sudoyang at gmail.com (Fong Vang)]

What exactly is different between the 32 and 64-bit version of CentOS
4.2?  The kernel (drivers, file system, etc.) is probably compiled to
support 64-bit and probably glibc.  What're some important differences
between the 32 and 64-bit version?  I'm just trying to get a deeper
understanding.

Thanks in advance for any help.

FongVang