Mainframe backup for software support

A computer system consisting of several PDP-11 minicomputers linked to a CII 10070 computer is used at CERN to acquire and check data from a series of high energy physics experiments. All program preparation for the minicomputers is carried out on the large machine. A macroassembler, a compiler for an intermediate level language and a linkage editor are provided. The data links are used for loading programs into the minicomputer and are also used by systems for editing source programs. remote job submission and for access to the CII 10070 permanent file system. Some examples of the use of these facilities and the benefits they provide are given. (7 refs).