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authorWilliam Joye <wjoye@cfa.harvard.edu>2016-10-17 15:27:21 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2016-10-17 15:27:21 (GMT)
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+<!-- =defdoc xpaname xpaname n -->
+<HTML>
+<HEAD>
+<TITLE>What does XPA stand for?</TITLE>
+</HEAD>
+<BODY>
+
+<!-- =section xpaname NAME -->
+<H2><A NAME="xpaname">XPAName: What does XPA stand for?</A></H2>
+
+<!-- =section xpaname SYNOPSIS -->
+<H2>Summary</H2>
+<P>
+What does XPA stand for? Who knows anymore!
+
+<!-- =section xpaname DESCRIPTION -->
+<H2>Description</H2>
+<P>
+What does XPA stand for? Dunno! The XPA messaging system originally
+was built on top of the X Window System and XPA was the mnemonic for
+<EM>X Public Access</EM>, to emphasize that we were providing public
+access to previously private data and algorithms in Xt programs. Now
+that XPA no longer is tied to X, it can be argued that we ought to
+change the name (how about <EM>SPAM: simple public access mechanism
+</EM>), but XPA is in wide-spread use in the astronomical community of
+its birth, and the name has taken on a life of its own. If anyone can
+think of what XPA now means, please let us know.
+
+<P>
+If you think this is bad, consider the MMT Telescope on Mount Hopkins,
+Arizona. When first installed twenty years ago, it featured an array
+of six 72-inch diameter mirrors. from which came its name: the
+<EM>Multiple Mirror Telescope</EM>. In spring of 1999, these mirrors
+were replaced by a single 21 and 1/2 -foot diameter primary mirror,
+the largest single-piece glass reflector on the North American
+continent. And now MMT stands for ... MMT!
+
+<!-- =section xpaname SEE ALSO -->
+<!-- =text See xpa(n) for a list of XPA help pages -->
+<!-- =stop -->
+
+<P>
+<A HREF="./help.html">Go to XPA Help Index</A>
+
+<H5>Last updated: September 10, 2003</H5>
+</BODY>
+</HTML>
+