<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>Hi all,</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span>Great news - Nigel Williams et al have successfully located and digitized the original University of Washington implementation of APL for the Burroughs B5500. Who would have thought that in 2013 we'd be able to recover source code for APL from the late-1960s/early-1970s! </span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size:
16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span>I have uploaded the source code to CHM's Software Preservation web-site. In addition, I've uploaded the original Tech. Report from Gary Kildall (pre-CPM era) describing the system, user manual from Georgia Tech and Nigel's announcement email. It joins the source code for APL implementations for the SDS Sigma Series and Paul McJones micro-coded APL from Berkeley.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span>Thanks for Nigel, Paul and Ed for excellent computer history sleuthing and hard work to pull this work together. Awesome work!</span></div><div style="color: rgb(0,
0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: arial, helvetica, sans-serif; background-color: transparent; font-style: normal;"><span>Cheers,</span></div><div></div><div> </div><div>Lee Courtney<br></div><div><br></div> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div dir="ltr"> ----- Forwarded Message -----<br> <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Nigel Williams <nw@retrocomputingtasmania.com><br> <b><span style="font-weight: bold;">To:</span></b> Nigel Williams <nw@retrocomputingtasmania.com>; Paul Kimpel <paul.kimpel@digm.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, September 7,
2013 11:15 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Here it is! - APL for the Burroughs B5500<br> </font> </div> <div class="y_msg_container"><br>Paul Kimpel has deftly completed a scan of the source-code listing of<br>the UW CSG APL for the Burroughs B5500 and it can now be downloaded<br>from here (43 megabyte PDF 89 pages):<br><br><a href="http://www.phkimpel.us/APL-B5500-Listing-19710111.pdf" target="_blank">http://www.phkimpel.us/APL-B5500-Listing-19710111.pdf</a><br><br>We added a cover page with details and several corrections to<br>compensate for minor imperfections due to the available scanning<br>equipment. With these corrections and some careful attention the<br>listing is 100% complete and a solid basis for transcribing.<br><br>I urge everyone to grab a copy and share the link with whomever so it<br>can be scattered far and wide, the more copies the better; hopefully<br>far into the future copies will be easily
found rather than relying on<br>the serendipitous chain of events we have experienced over the last<br>few months.<br><br>I would also direct everyone to the GeorgiaTech user manual for their<br>version of this APL. The GeorgiaTech document also has an interesting<br>comparison between APL\360 and APL/B5500.<br><br><a href="http://bitsavers.trailing-edge.com/pdf/georgiaTech/Georgia_Tech_B5500_APL_Aug71.pdf" target="_blank">http://bitsavers.trailing-edge.com/pdf/georgiaTech/Georgia_Tech_B5500_APL_Aug71.pdf</a><br><br>Thanks again to Ed Vandergriff for preserving this implementation of<br>APL. This has been an unexpectedly rapid recovery; some historic<br>software artefacts seem to yield themselves up quicker than expected,<br>others remain stubbornly and persistently missing.<br><br><br></div> </div> </div> </div></body></html>