All three stacks have ice-blocked. Unable to refill liquid Helium.

Take the up-stack out, blow helium gas into the stack for few hours to remove ice.

.KBMGEN

INSTALL KBM   Y

DATE

SMD

16 BOOT FOR FLOPPY DISK

17 BOOT FOR LOCAL HARD DISK

.MOU

.TREE

.KILL DIR_NAME

.SYSGEN2D    FORMAT FLOPPY DISK

.DST  DISK SPACE AVAILABLE