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- IBM_1750,_2750_and_3750_Switching_Systems abstract "In 1969 IBM started marketing in five European countries the IBM 2750 Switching System – worldwide, the first stored-program-controlled PABX (Private Automatic Branch Exchange). Previously only electromechanical Strowger and Crossbar PABXs were available.The 2750 was sold in France, Germany, Italy, and Belgium. The other systems were sold in these countries and the United Kingdom. The Netherlands installed some in IBM sites.The family of IBM 1750, 2750 and 3750 Switching Systems was developed from the IBM 1800 by the IBM La Gaude Research Laboratory near Nice, France for European markets only. Each system included twin stored-program controllers (each with 32K main storage, some 600,000 lines of code, and nightly and emergency automatic switchover), twin disks, and solid-state switching. Extension, trunk and tie lines were connected by discrete transistors on plug-in panels.The systems all had both voice and data functions – the marketplace largely bought them for their then-new voice and management functions. Early-1960s computers had hardly any typewriter-like terminals and no screens – the IBM Switching Systems introduced the novelty of simple digital-data capture from every touch-tone telephone extension.".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageID "24632781".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageLength "4773".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageOutDegree "34".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageRevisionID "643531948".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Belgium.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Business_telephone_system.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Call_pickup.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Category:IBM_products.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Category:Telephone_exchange_equipment.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Conference_call.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Crossbar_switch.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Dual-tone_multi-frequency_signaling.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Electromechanics.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Extension_(telephone).
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink France.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Germany.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM_1800_Data_Acquisition_and_Control_System.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM_3221.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM_3223.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM_3755.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink IBM_Audio_Distribution_System.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Italy.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink La_Gaude.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Last-call_return.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Netherlands.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Nice.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Night_service.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Pager.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Ringtone.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Solid-state_electronics.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Stored_program_control.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Strowger_switch.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Tie_line.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Transistor.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink United_Kingdom.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLink Watt.
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLinkText "IBM 1750".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLinkText "IBM 1755".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLinkText "IBM 2750 and 3750 Switching Systems".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLinkText "IBM 2750".
- IBM_1750,_2750_and_3750_Switching_Systems wikiPageWikiLinkText "IBM 3750".
- IBM_1750,_2750_and_3750_Switching_Systems subject Category:IBM_products.
- IBM_1750,_2750_and_3750_Switching_Systems subject Category:Telephone_exchange_equipment.
- IBM_1750,_2750_and_3750_Switching_Systems type Exchange.
- IBM_1750,_2750_and_3750_Switching_Systems type Product.
- IBM_1750,_2750_and_3750_Switching_Systems type Switch.
- IBM_1750,_2750_and_3750_Switching_Systems comment "In 1969 IBM started marketing in five European countries the IBM 2750 Switching System – worldwide, the first stored-program-controlled PABX (Private Automatic Branch Exchange). Previously only electromechanical Strowger and Crossbar PABXs were available.The 2750 was sold in France, Germany, Italy, and Belgium. The other systems were sold in these countries and the United Kingdom.".
- IBM_1750,_2750_and_3750_Switching_Systems label "IBM 1750, 2750 and 3750 Switching Systems".
- IBM_1750,_2750_and_3750_Switching_Systems sameAs Q5968592.
- IBM_1750,_2750_and_3750_Switching_Systems sameAs m.0809j2g.
- IBM_1750,_2750_and_3750_Switching_Systems sameAs Q5968592.
- IBM_1750,_2750_and_3750_Switching_Systems wasDerivedFrom IBM_1750,_2750_and_3750_Switching_Systems?oldid=643531948.
- IBM_1750,_2750_and_3750_Switching_Systems isPrimaryTopicOf IBM_1750,_2750_and_3750_Switching_Systems.