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Nice! - that picture brings back memories. I still got my MK-52 in the basement somewhere :)DXM– DXM2013-12-13 21:40:48 +00:00Commented Dec 13, 2013 at 21:40
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This looks like a Soviet clone of the HP 65. It may be programmed in Reverse Polish Notation with operations that push and pull on a stack. The RPN operators are simply recorded in memory, and interpreted by a what is probably equivalent to a 4004 CPU. The code in the 4004 ROM was probably compiled from 4004 assembler, but the keystrokes are really more like spreadsheet macros.Meredith Poor– Meredith Poor2013-12-14 05:38:34 +00:00Commented Dec 14, 2013 at 5:38
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