Nope, that depends on the dipswitch settings. You can power up boot any of the devices that you have roms for based on the dip switch setting on the bootstrap card. However, the default device is unit 0. (This can be changed by a value in the switch register). Many locations set the machine to boot drive 0 on power up so they could autoboot on power fail if the battery backup wasn't installed or the outage was too long for the 15 minutes (if that) of battery backup DEC had as an option. Some locations just droped you to the $ or @ prompt at all times so the operator would boot the machine. The $ or @ prompt was usually returned after the boot diags on rom ran and verified the machine health (basic memory, registers and I/O ok). Bill --- bpechter@shell.monmouth.com|pechter@pechter.dyndns.org Three things never anger: First, the one who runs your DEC, The one who does Field Service and the one who signs your check.