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Traffic Service Position System
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<p>The Traffic Service Position System (TSPS) was developed by <a href="/facts/Bell_Labs/fKP5Gk0H">Bell Labs</a> in <a href="/facts/Columbus,_Ohio/mREa53Ub">Columbus, Ohio</a> to replace traditional cord <a href="/facts/Telephone_switchboard/Xu1xeItl">switchboards</a>. The first TSPS was deployed in <a href="/facts/Morristown,_New_Jersey/XEUdS15a">Morristown, New Jersey</a> in 1969 and used the <a href="/facts/Stored_Program_Control_exchange/FXtRRPlr">Stored Program Control</a>-1A CPU, "Piggyback" <a href="/facts/Twistor_memory/HEnm6S9o">twistor memory</a> (a proprietary technology developed by <a href="/facts/Bell_Labs/fKP5Gk0H">Bell Labs</a> similar to core memory) and <a href="/facts/IGFET/eTDJT2Km">Insulated Gate Field Effect Transistor</a> solid state memory devices similar to <a href="/facts/DRAM/koI9FGo5">dynamic random access memory</a>. </p>