What is the first computer?

Well, not exactly the point I was trying to get across... Digital computers work or they do not. Sure, there are things like intermittent timing problems, but when the fault doesn't exist, the problem doesn't exist. When the timing problem is there, the circuit does not work. It may flap every second, but its discrete. An analog (mechanical or electronic) machine might be broken, but still function with no apparent bad output. Calibration could go off, or hysteresis might start acting up. Analog machines operate with acceptable tolerances and slops*, and are accounted for during normal operation and maintenance. These issues do not show up in digital machines. * I suppose the closest one could come to "slop" in digital electronics is in floating point units, and maybe performance of networks. William Donzelli william(a)ans.net