retrocomputing

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Dont copy (discuss.tchncs.de)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 9 points 1 week ago (1 children)

Other way around. You punched the edge to make it writeable (or double-punched to write on the back side, if you were brave). Cover it to make it read-only. The 3.5" sliders were the same mechanism, open was write, closed was read-only.

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[–] [email protected] 4 points 1 week ago

Oh the double punch. That's a deep cut there

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