Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Wed, 15 May 2019 10:56:48 -0600
From:   Jonathan Corbet <corbet@lwn.net>
To:     "Tobin C. Harding" <me@tobin.cc>
Cc:     "Thomas Hellstrom" <thellstrom@vmware.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "minyard@acm.org" <minyard@acm.org>,
        "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
        "Tobin C. Harding" <tobin@kernel.org>
Subject: [TRIVIA] Re: [PATCH] docs: Move kref.txt to core-api/kref.rst
Message-ID: <20190515105648.61164eab@lwn.net>
In-Reply-To: <f48e76f7-6b95-4cf0-82af-424119bb2eb4@www.fastmail.com>
References: <20190510001747.8767-1-tobin@kernel.org>
        <a3db1384695bbaa051d93c18ac30175fb95165e3.camel@vmware.com>
        <f48e76f7-6b95-4cf0-82af-424119bb2eb4@www.fastmail.com>
Organization: LWN.net
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Fri, 10 May 2019 16:45:45 -0400
"Tobin C. Harding" <me@tobin.cc> wrote:

> I read once that they used 72 characters on punch cards at times because
> the other 8 characters got mangled for some reason.

Those of use who worked in Fortran understand these things... columns
73-80 were ignored by the compiler.  The normal use was to put line
numbers in there to help recovery when you dropped your card deck on the
floor and had to unshuffle things.  A diagonal line drawn across the
top of deck helped a lot, but it was good to have verification for the
marginal cases.

Kids today just don't have any culture at all...:)

jon