Editing IBM System 9000 (section)

{{Short description|Early 1980s laboratory computer from IBM}}
{{Distinguish|text=the IBM [[IBM System/390#S/390 computers|Enterprise System/9000]] (ES/9000), a family of mainframe computers}}
{{Infobox Computer
| name   = IBM System 9000 series
| aka    = CS-9000, CS/9000, or CS9000
| os     = 
| successor    = 
| manufacturer = IBM
| discontinued = 1986
| release date = 1982
| related      = 
}}

The '''System 9000''' ('''S9000''') is a family of [[microcomputer]]s from [[IBM]] consisting of the System 9001, 9002, and 9003. The first member of the family, the System 9001 laboratory computer, was introduced in May 1982 as the IBM Instruments Computer System Model 9000.<ref name=CU>{{cite web
|url=http://www.columbia.edu/cu/computinghistory/cs9000.html
|title=The IBM CS-9000 Instrument Computer
|publisher=Columbia Univ. Computing History}}</ref><ref>[http://pubs.acs.org/doi/pdf/10.1021/cen-v062n013.p017 The Enhanced IBM System 9000 Computer] IBM ad in Chem. Eng. News, March 26, 1984, 62 (13), pp 17–19</ref> It was renamed to the System 9001 in 1984 when the System 9000 family name and the System 9002 [[multi-user]] general-purpose business computer was introduced. The last member of the family, the System 9003 industrial computer, was introduced in 1985. All members of the System 9000 family did not find much commercial success and the entire family was discontinued on 2 December 1986. The System 9000 was based around the [[Motorola 68000]] [[microprocessor]] and the Motorola [[VERSAbus]] [[system bus]]. All members had the IBM CSOS [[real-time operating system]] (OS) stored on [[read-only memory]]; and the System 9002 could also run the multi-user [[Microsoft]] [[Xenix]] OS, which was suitable for business use and supported up to four users.