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I'm with you, Walt. Back in the late 50's, I serviced computers andI knew what every circuit in the large computer did and why it was required (IBM 704). The next generation was larger, and I was less intimately aquainted. Then they started getting smaller with 'potted' components and microcircuits; even less detail knowledge but more 'concepts'. I have no idea what's inside this PC except I know there are layers upon layers around the primeval MS-DOS (MicroSoftDiskOperatingSystem) that is masquerading as Windows XP. I do know there's a mother-board and dip switches and thingamjigs that I don't even know the name of. And wonderously, it works - - - sometimes. When it acts up , I don't have a clue why but it's probably because it never had a father-board! Art
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