Figure 1: The copyright used by TeleMuse in the 386BSD article series
/* Copyright (c) date, name-of-author. All rights reserved. * Written by name-of-author, date-written. * Redistribution and use in source and binary forms are freely permitted * provided that the above copyright notice and attribution and date of work * and this paragraph are duplicated in all such forms. * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */
According to Marshall Kirk McKusick, UCB CSRG Research Computer scientist and president of USENIX; "We have the capitalists with their copyright and the radicals with their copyleft. We are at the 'copycenter,' since we allow redistribution with credit to the authors. Our goal is to have as many people as possible use our software." In January of 1991, CMU adopted a variant of the UCB copyright for the MACH operating system.