[WBEL-devel] About the arch of RHEL3 update srpms

Look at this list of some RHEL3 update srpms :

srpm file name : package name | arch

comps-3AS-0.20040113.src.rpm : comps | ppc
comps-3ES-0.20040113.src.rpm : comps | i386
comps-3WS-0.20040113.src.rpm : comps | i386
redhat-release-3AS-10.src.rpm : redhat-release | s390
redhat-release-3AS-11.src.rpm : redhat-release | s390x
redhat-release-3AS-12.src.rpm : redhat-release | x86_64
redhat-release-3AS-7.src.rpm : redhat-release | i386
redhat-release-3AS-8.src.rpm : redhat-release | ia64
redhat-release-3AS-9.src.rpm : redhat-release | ppc
redhat-release-3ES-7.src.rpm : redhat-release | i386
redhat-release-3WS-12.src.rpm : redhat-release | x86_64
redhat-release-3WS-7.src.rpm : redhat-release | i386
redhat-release-3WS-8.src.rpm : redhat-release | ia64

Sorry for stupidity, but what's the difference between i386 srpm and
x86_64 srpm?

Thanks.

X.H. Beijing