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BitPipelineikiwikiMon, 23 Sep 2013 11:24:57 +0200Happy birthday Spectrum!http://www.bitpipeline.eu/Blog/20120423-Happy_birthday_spectrum/
http://www.bitpipeline.eu/Blog/20120423-Happy_birthday_spectrum/
bitpipeline-ithardwarehistoryprogrammingMon, 23 Apr 2012 12:46:00 +02002013-09-23T09:24:57Z<p><a href="http://www.bitpipeline.eu/Blog/20120423-stgeorge12-hp.png"><img src="http://www.bitpipeline.eu/Blog/20120423-stgeorge12-hp.png" width="256" height="192" class="screenshot" align="right" /></a></p>
<p>The first computer that I ever laid my hands on celebrates its birthday today. The venerable <a href="https://secure.wikimedia.org/wikipedia/en/wiki/Zx_spectrum">Spectrum 48k</a> is 30 years old counting from the launch day and <a href="https://www.google.co.uk">google UK</a> decided to honer this day with the image you see on the right. That brings back some very good memories.</p>
<p>What a marvellous machine it was, how it made me dream, how eager I was to learn how all those letters and numbers came together to form something that seamed so much more complex.</p>
<p>It's been a long time since I played with a ZX Spectrum but emulators come to the rescue of the nostalgic. I'm using <a href="http://fuse-emulator.sourceforge.net/">fuse</a> to remember the good old fun (there's a good one for Android named <a href="https://play.google.com/store/apps/details?id=cz.dejvice.rc.Marvin">Marvin</a>).</p>
<p>Here's a my half a minute <a href="https://secure.wikimedia.org/wikipedia/en/wiki/Hello_world">Hello World</a> in <a href="http://schools-wikipedia.org/wp/z/ZX_Spectrum.htm">ZX Spectrum</a> <a href="http://www.worldofspectrum.org/ZXBasicManual/">BASIC</a>:</p>
<pre style='color:#141312;background-color:#f0f0f0;'>
<span style='color:#b08000;'>10</span> BORDER <span style='color:#644a9b;'>INT</span> (<span style='color:#644a9b;'>RND</span>*<span style='color:#b08000;'>6</span>)
<span style='color:#b08000;'>20</span> <span style='color:#644a9b;'>INPUT</span> n$
<span style='color:#b08000;'>30</span> <span style='color:#644a9b;'>PRINT</span> <span style='color:#bf0303;'>"Hello "</span>;n$;<span style='color:#bf0303;'>"!"</span>
<span style='color:#b08000;'>40</span> GO <b>TO</b> <span style='color:#b08000;'>10</span></pre>
<p>And for for those of you that didn't go through a "spectrum" phase, here is more or less what it would look like:</p>
<p><center></p>
<table>
<tr>
<td> <a href="http://www.bitpipeline.eu/Blog/20120423-zx_basic_Hello_World.png"><img src="http://www.bitpipeline.eu/Blog/20120423-Happy_birthday_spectrum/220x162-20120423-zx_basic_Hello_World.png" width="216" height="162" class="img" /></a> </td>
<td> <a href="http://www.bitpipeline.eu/Blog/20120423-zx_basic_Hello_World.run.png"><img src="http://www.bitpipeline.eu/Blog/20120423-Happy_birthday_spectrum/220x162-20120423-zx_basic_Hello_World.run.png" width="216" height="162" class="img" /></a> </td>
</tr>
</table>
<p></center></p>
<p>I remember reading a book named Chaos (I forgot the name of the author), a book about <a href="http://mathworld.wolfram.com/Fractal.html">fractals</a> and <a href="http://mathworld.wolfram.com/StrangeAttractor.html">strange attractors</a> and implementing the algorithms in book. It's was wonderful to see those beautiful images show up on the TV.</p>
<p>Those were some good days of exploring the wonders of programming…</p>