Editing IBM Series/1 (section)

==Models==
[[File:IBM Series1 4956 und Arbeitsplatz 04 Btx-Museum.jpg|thumb|IBM Series/1 in museum; tower include 4956 processor module and 4967 module inside of IBM 4997 Rack<ref>{{Cite book|url=https://archive.org/details/bitsavers_ibmseries1onManualPhysicalPlanningMar77_5278116/page/n11/mode/2up|title=ibm :: series1 :: GA34-0029-1 Installation Manual Physical Planning Mar77|date=1977-03-13}}</ref>]]
Initially, model 1 (4952, Model C),<ref name=IDG>{{Cite book|last=Enterprise|first=I. D. G.|url=https://books.google.com/books?id=d514ApKzvjYC&dq=IBM+4975+printer&pg=PA4|title=Computerworld|date=1981-01-26|publisher=IDG Enterprise|language=en}}</ref> model 3 (IBM 4953) and model 5 (IBM 4955, Model F<ref name=IDG></ref>) processors were provided. Later processors were the model 4 (IBM 4954) and model 6 (IBM 4956). [[Don Estridge]] had been the lead manager on the IBM Series/1 minicomputer. He reportedly had fallen out of grace when that project was ill-received.<ref>{{cite journal|last=McCartney|first=Laton|title=Teaching the elephant to dance |url= |journal=Electronic Engineering Times|date=1997-11-17|pages=95|access-date=}}</ref>