Solaris: check OS level: uname -a
application support: isainfo -v
General Info: /usr/platform/sun4u/sbin/ ./prtdiag -v | more
Amount Memory: /usr/sbin/prtconf | grep size

AIX: check OS leveL: lslpp -l bos.rte or uname -a
Hardware Info: lscfg
Amount Memory: lsattr -El mem0
General Info: lsattr -El sys0