In a message dated 7/17/2007 6:25:49 A.M. Central Daylight Time, [EMAIL PROTECTED] writes: >There is a LOT of code still supporting the CKD structure and CKD gaps that have not existed for perhaps 15 years now. My bad. I just remembered that there are still some data centers that use control units that are more than 15 years old. I should have written "... that have not been incorporated into any new technology for perhaps 15 years now." Somewhere, someone may still be running a S/360, a 650, an ENIAC, a Tinkertoy computer, ... etc. Bill Fairchild Plainfield, IL
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