root@% uname -a

JUNOS  8.1R1.5 JUNOS 8.1R1.5 #0: 2006-11-02 00:58:55

root> show chassis pic fpc-slot 0 pic-slot 0
 FPC slot 0, PIC slot 0 information:
 Type                           4x GE Base PIC
 State                          Online
 PIC version                 1.8
 CPU load average             0 percent
 Interrupt load average      10 percent
 Total DRAM size             20 MB
 Memory buffer utilization    0 percent
 Memory heap utilization      0 percent
 Uptime                      53 minutes, 54 seconds