Before I looked at the photos, I thought you were talking about types of computers, not ACTUAL computers 
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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I am amazed to see they were still doing this into the mid-1970s! It would have become overwhelming once microcomputers appeared. Looks like the last one was September, 1974 https://archive.org/details/bitsavers_computersA_4735930/page/n39 …
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I guess if you don’t think of mini- and microcomputers as computers, you can continue doing it forever!
End of conversation
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