View source for WFL/DCP SPO

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== 4717 Story ==
 The original meaning of the acronym is given below and I adopt also the Unisys backronym "Single Point Operations" which they actually discontinued in 2005.
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In the current context, the more or less same function corresponds to squeak code which is developed to run in SqueakJS or a 5.2 desktop. These classes do not have load time MCP/DCP dependencies and will load into either image type.
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<table style="background-color: gray;color: white;" align=right width=500><tr><td><img width=300 align=left src=/images/TD830.jpg><td>&nbsp;&nbsp;</td><td align=justify>
The SPO would be associated with a particular Operator Display Terminal (ODT), by assignment in the NDL (Network Definition Language) sources for the machine controlled.<br/><br/>The TD series (classic TD830 shown) were typically used in the seventies and early eighties. The "dumb" terminal is actually in the keyboard. I also used an "SR" station type with a more programmable microprocessor introduced after the TD.
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<tr><td colspan=3>This image shows a lot of reverse video, they were normally white text on black. I believe they also could be configured like a contemporary IBM 3270 for"greenscreen" green on black or amber. There also was an ET series, a more modern version of the TD (monitor shown left).</td></tr>
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<a href=/images/SPO.jpg><img src=/images/SPO-tn.jpg></a>
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== CANDE ==

Command and Edit MCS was the MCP version of the better known IBM VM/CMS, with both session control and source editing capabilities. A reference card is in the MoCA page in my [https://en.wikipedia.org/wiki/User:Lycurgus/MoCA#Burroughs_CANDE <span style="color: pink;">wikipedia user space</span>].

[[DCMS|<span style="color: pink;">DCMS</span>]] shall support an API for use by the SPO and AC interfaces with a transformed set of commands in the same and common style of the MCP and WFL as these are implemented in the revival.

== Supervisory Print Out == 
In the original [[:en:Master Control Program|<span style="color: pink;">MCP</span>]] based systems one or more consoles could function as the "SPO", the system operator interface. Originally it stood for "Supervisory Print Out" in the early MCP (presumably B5000 or possibly earlier).
In my homage it has become simply "SPO" (sp-oh) for DCP/MCP, the dominion control program in the style of the Burroughs MCP. 

== Links==

*[[:en:Burroughs large systems|<span style="color: pink;">Burroughs Large Systems</span>]] (external)
*[[Burroughs MCP Architecture|<span style="color: pink;">Burroughs MCP Architecture</span>]] (internal)
*[[:en:CANDE|<span style="color: pink;">CANDE</span>]]
*[[:en:Squeak|<span style="color: pink;">Squeak</span>]]
*[[:en:Work Flow Language|<span style="color: pink;">WFL]]
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