The A-to-Z PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R System is a user-installable, multiuser base system that sup- ports up to ten concurrent users on PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R -11 and sixteen or more concur- rent users on MicroVAX. The A to Z Base System includes menu-driven system - - management functions as well as the ability to install PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R/RSX and/or PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R applications. Inherent in the system are the menu manager and flow-control processor, which insulate the end user from the system-level inter- face without isolating the developer or system manager from the functions avail- able at the operating system level. The A-to-Z PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R System for MicroPDP-11 includes the PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R/RSX operating system software, whereas the other A-to-Z Base Systems require the purchase of PCTAR-GB 2 Chan.Raid Ctr. PCI Ultra aus DECServer 3100R3205R as prerequisite software. SPD 18.16