<story><title>Running a full IBM System/370 Mainframe on a Raspberry Pi Zero</title><url>https://twitter.com/BrianRoemmele/status/1257832168455208963</url></story><parent_chain><item><author>Harvesterify</author><text>This is apparently greatly over-hyped (or a complete lie, depending on your interpretation) :&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;1258018826823729154&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;125801882682...&lt;/a&gt;</text></item></parent_chain><comment><author>floren</author><text>And the login screen is just taken from the manual for the MVS TK-4 system: &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;1258028638617796608&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;125802863861...&lt;/a&gt;&lt;p&gt;So the pictures are: a stock photo of a mainframe, a stock photo of a Raspberry Pi, and a cropped screenshot from an MVS installation manual. Looking at OP&amp;#x27;s other tweets he appears to be a pretty shamelessly self-promoting &amp;quot;thought leader&amp;quot; type so I would be pretty unsurprised if it&amp;#x27;s bullshit.</text></comment>
<story><title>Running a full IBM System/370 Mainframe on a Raspberry Pi Zero</title><url>https://twitter.com/BrianRoemmele/status/1257832168455208963</url></story><parent_chain><item><author>Harvesterify</author><text>This is apparently greatly over-hyped (or a complete lie, depending on your interpretation) :&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;1258018826823729154&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;mobile.twitter.com&amp;#x2F;mainframed767&amp;#x2F;status&amp;#x2F;125801882682...&lt;/a&gt;</text></item></parent_chain><comment><author>tyingq</author><text>It&amp;#x27;s possible the original tweet poster was running a much newer mainframe OS on his Hercules emulator, but didn&amp;#x27;t want to say it directly, since he might get a license bill for that.&lt;p&gt;&lt;i&gt;&amp;quot;7 times faster than System&amp;#x2F;370&amp;quot;&lt;/i&gt; is an odd claim though.  There&amp;#x27;s several models and 19 years of upgrades.</text></comment>