Editing S-100 bus (section)

== Retirement ==
[[File:Cromemco Z-2 Systems at Chicago Mercantile Exchange (1984).jpg|thumb|Racks of [[Cromemco]] {{nowrap|S-100}} Systems at the [[Chicago Mercantile Exchange]] in 1984]]

[[IBM]] introduced the [[IBM Personal Computer]] in 1981 and followed it with increasingly capable models: the XT in 1983 and the AT in 1984. The success of these computers, which used IBM's own, incompatible bus architecture, cut deeply into the market for {{nowrap|S-100}} bus products. In May 1984, Sol Libes (who had been a member of the IEEE-696 Working Group) wrote in [[Microsystems (magazine)|''Microsystems'']]: "there is no doubt that the S-100 market can now be considered a mature industry with only moderate growth potential, compared to the IBM PC-compatible market".<ref>{{cite journal|last=Libes|first=Sol|title=S-100 Product Directory|journal=Microsystems|date=May 1984|volume=5|issue=5|page=59|quote=However there is no doubt that the S-100 market can now be considered a mature industry with only moderate growth potential, compared to the IBM PC-compatible market.}}</ref>

As the IBM PC products captured the low-end of the market, {{nowrap|S-100}} machines moved up-scale to more powerful OEM and multiuser systems. Banks of {{nowrap|S-100}} bus computers were used, for example, to process the trades at the Chicago Mercantile Exchange; the United States Air Force deployed {{nowrap|S-100}} bus machines for their mission planning systems.<ref>{{cite journal|last=Breeding|first=Gary|title=Cromemco Systems Network Transactions at Chaotic Exchange|journal=I/O News |url=https://archive.org/details/io-news-volume-3-number-6/mode/2up| issn=0274-9998|date=January–February 1984|volume=3|issue=6|page=20}}</ref><ref>{{cite journal|journal=Aviation Week & Space Technology|title=USAF will equip its tactical fighter squadrons with a mission planning system | date=June 1, 1987|volume=126|issue=22|page=105}}</ref>  However throughout the 1980s the market for {{nowrap|S-100}} bus machines for the hobbyist, for personal use, and even for small business was on the decline.<ref>{{cite journal|last=Libes|first=Sol|title=S-100 Product Directory|journal=Microsystems|date=May 1984|volume=5|issue=5|page=59|quote=Whereas the early growth of the S-100 marketplace relied mainly on hobbyists and early personal computer users, the industry is now concentrating on OEM multiuser systems, and applications requiring more computer power.}}</ref>

The market for {{nowrap|S-100}} bus products continued to contract through the early 1990s, as IBM-compatible computers became more capable. In 1992, the Chicago Mercantile Exchange, for example, replaced their {{nowrap|S-100}} bus computers with the [[IBM Personal System/2|IBM model PS/2]].<ref>{{cite web|title=CME Taps Datacode To Distribute Quotation Data To Floor Traders|url=https://www.waterstechnology.com/data-management/1628751/cme-taps-datacode-to-distribute-quotation-data-to-floor-traders|publisher=WatersTechnology|date = January 27, 1992}}</ref> By 1994, the {{nowrap|S-100}} bus industry had contracted sufficiently that the IEEE did not see a need to continue supporting the IEEE-696 standard. The IEEE-696 standard was retired on June 14, 1994.<ref name="Standard" />