[OPLINTECH] Such a deal ! Disquettes 90mm

[Mann, James H.]

Correct answer.When you dropped your punch cards, not "if"  you used an X because your marks would be off center and you could match them up like a puzzle.
You cut the wire in a Mac, Mac Plus and SE (up to the SE30) because the amount of RAM was throttled.

________________________________________
From: oplintech-bounces at lists.oplin.org [oplintech-bounces at lists.oplin.org] On Behalf Of Bob Neeper [neeperro at oplin.org]
Sent: Friday, April 15, 2011 2:54 PM
Cc: oplintech at lists.oplin.org
Subject: Re: [OPLINTECH] Such a deal ! Disquettes 90mm

I think you would put an X on the top (edge) so when you dropped them all could
could get them back in order.

R. W. (Bob) Neeper
Community Library
44 Burrer Dr.
Sunbury, Oh 43074
Tel:  (740)-965-3901


On 4/15/2011 2:38 PM, Nathan Eady wrote:
> "Mann, James H."<JMann at gcpl.lib.oh.us>  writes:
>
>> Here's some punch card trivia for us old guys...why did you use a
>> marker or crayon to scribe an X on the top of your punch cards?
> Because a pencil or especially a ballpoint pen would probably leave an
> indentation, and if all your cards have those indentations they won't
> stack right in the card reader?
>
> I'm guessing.  I've never seen punch cards in actual use except as a
> visual aid in a computer history class.
>
>> OK, here's some old Mac trivia...when upgrading a Mac Plus why did you
>> have to cut the green wire?
> Probably because there was physically no other way to get the case open,
> but again I'm guessing.  I *have* used a Mac Plus, but I didn't own it
> and so was never in a position to upgrade it.
>
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