A NELIAC-Generated 7090-1401 Compiler NELIAC systems for several different machines have been generated using the original NELIAC system developed at the Naval Electronics Laboratory, San Diego, in 1958. A basic "bootstrap" process was used to generate all but the first, i.e. the systems were described in the NELIAC language and generated by an existing NELIAC compiler. This experience has shown there is no inherent difficulty in "building compilers with compilers"; indeed, it pointed out many advantages in using a POL for constructing programming systems. This report presents the results of a project completed in May, 1961 in which the NELIAC system was used to generate a compiler for the IBM 1401. The 1401 compiler, which runs on the 7090 and produces 1401 programs, was described in the NELIAC language and generated with 7090 NELIAC system. The reduction in programming time and the improvement in documentation of the system were very significant. CACM February, 1962 Watt, J. B. Wattenburg, W. H. CA620206 JB March 20, 1978 3:52 PM 1781 4 637 637 4 637 637 4 637 123 4 637 123 5 637 165 5 637 637 5 637 637 5 637 637 5 637