Chippewa Operating System

The Chippewa Operating System (COS) is a discontinued <a href="/facts/Operating_system/8XTuvMh2">operating system</a> developed by <a href="/facts/Control_Data_Corporation/ChfGgfPM">Control Data Corporation</a> in 1964 for the <a href="/facts/CDC_6600/QpnT1Ltl">CDC 6600</a>, generally considered the first <a href="/facts/Supercomputer/HT9NwGAN">supercomputer</a> in the world. The Chippewa was initially developed as an experimental system, but was then also deployed on other CDC 6000 machines. 
The Chippewa was a rather simple <a href="/facts/Job_control_(computing)/ypXljwRh">job control</a> oriented system derived from the earlier <a href="/facts/CDC_3000/s4DQdR7Y">CDC 3000</a>. Its design influenced the later CDC <a href="/facts/CDC_Kronos/dn8PjGCk">Kronos</a> and <a href="/facts/CDC_SCOPE/X7az38Yt">SCOPE</a> operating systems. Its name was based on the <a href="/facts/Chippewa_Falls%2c_Wisconsin/S9lvF7EA">Chippewa Falls</a> research and development center of CDC in <a href="/facts/Wisconsin/XvyqH6vN">Wisconsin</a>.
It is distinct from and preceded the <a href="/facts/Cray_Operating_System/6n4t0yR2">Cray Operating System</a> (also called "COS") at <a href="/facts/Cray/coAlupuy">Cray</a>.

Chippewa Operating System open-in-new

Chippewa Operating System