Across Machine Lines in COBOL The production of a large, file-maintenance-and-retrieval program system written in COBOL is described. The COBOL language was used specifically to enable the system to operate on three IBM computers. CACM December, 1965 Fredericks, D. S. Warburtin, C. R. CA651201 JB March 6, 1978 4:26 PM 1168 5 1168 1168 5 1168 1168 5 1168