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== References == * [https://en.wikipedia.org/wiki/IBM_System/23_Datamaster IBM System/23 Datamaster โ Wikipedia]. * [https://bitspassats.com/index.php/IBM_System/23_Datamaster Bits Passats โ IBM System/23 Datamaster]. The most thorough community technical reference, including the chipset breakdown, memory map, ROS module details, and PID-1200 test ID list. * [http://oldcomputers.net/ibm5322.html oldcomputers.net โ IBM 5322 System/23 Datamaster]. Pricing and configuration reference. * [https://www.wavada.org/Blog/2021/04/05/1981-1999-ibm-system-23-datamaster/ Wavablog โ TSI's IBM System/23 Datamaster experience]. Field reseller account. * [http://bitsavers.org/pdf/ibm/system23/fe/SY34-0171-0_IBM_5322_Computer_Service_Manual_Dec80.pdf IBM 5322 Service Manual SY34-0171-0 (December 1980)]. Primary CE document. * [http://bitsavers.org/pdf/ibm/system23/fe/SY34-0241-1_IBM_5324_Computer_Service_Manual_May82.pdf IBM 5324 Service Manual SY34-0241-1 (May 1982)]. * [http://bitsavers.org/pdf/ibm/system23/fe/6841631_System_23_Diagnostic_User_Guide_Apr82.pdf System/23 Diagnostic User Guide 6841631 (April 1982)]. Full PID-1200 test ID list. * [http://bitsavers.org/pdf/ibm/system23/user_manuals/binder_08/SA34-0109-1_BASIC_Language_Reference_Jul1981.pdf System/23 BASIC Language Reference SA34-0109-1 (July 1981)]. * [https://archive.org/stream/byte-magazine-1990-09/1990_09_BYTE_15-09_15th_Anniversary_Summit#page/n451/mode/2up Bradley, D. J., "The Creation of the IBM PC", BYTE September 1990, pp. 414โ420]. Datamaster โ IBM PC lineage from a member of both teams. * [https://www.nytimes.com/1981/08/13/business/big-ibm-s-little-computer.html Pollack, A., "Big I.B.M.'s Little Computer", NYT, 13 August 1981]. * [https://nemanjatrifunovic.substack.com/p/why-ibm-turned-to-microsoft-for-basic Trifunovic, N., "Why IBM Turned to Microsoft for BASIC"]. Cited for the Datamaster-BASIC-as-PC-design-driver argument. * [https://www.edn.com/whence-came-the-ibm-pc/ EDN, "Whence Came the IBM PC?"]. Architectural lineage detail. * [https://www.nf6x.net/2014/09/ibm-5322-system23-datamaster-internals/ Mark Blair (NF6X), "IBM 5322 System/23 Datamaster Internals"]. Restorer's hands-on photographs. {{Navbox-IBMComputers|state=collapsed}} [[Category:IBM]] [[Category:Pre-PC IBM Computers]]
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