<br><br><div class="gmail_quote">On Mon, Jul 25, 2011 at 12:52 AM, yudi v <span dir="ltr"><<a href="mailto:yudi.tux@gmail.com">yudi.tux@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>No it's not my homework, just curious.</div>
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<div>I looked at that link before posting. </div>
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<div>what confused me was the DEL key code. Usually the first 32 characters are control characters but the wiki article clubs DEL with the control characters where as it's assigned the last code in the table. That's after the printable characters.</div>
<div>That's why I posted here to get a confirmation. <br></div></blockquote><div><br>It's history. The DEL code was all holes punched in paper tape (8-level) that was used to RUBOUT a character in error. <br>Teletype and papertape systems were programmed to ignore the 0xFF code. When ASCII was formalized, the code for DEL<br>
was firmly in use as a control character and papertape was still in use. The various other "control" codes were used for various<br>esoteric paper tape storage methodologies and later for 8-bit wide magnetic tape systems.<br>
<br>Thanks for the nostalgia trip.<br><br>-- <br>G.Wolfe Woodbury<br>redwolfe@gmail (dot) com<br> <br></div></div>