Fork (system call) rfork and IRIX's sproc, Linux's clone was inspired by Plan 9's rfork and can be used to implement threads (though application programmers will typically use a higher-level interface such as pthreads, implemented on top of clone). The "separate stacks" feature from Plan 9 and IRIX has been omitted because (according to Linus Torvalds) it causes too much overhead. In the original design of the VMS operating system (1977), a copy operation with subsequent mutation of the content of a few specific addresses for the new process as in forking was considered risky. Errors in the current process state may be
Canaima (operating system) have been generated with several countries and manufacturing hardware companies: The most successful instances of the use and adoption of Canaima: It is a project initiated in 2009 by the Venezuelan Ministry of Education (Ministerio del Poder Popular para la Educación) that provides students in primary education with a laptop computer, known as Canaimitas, with free software, using the Canaima operating system and a series of educational content created by the Ministry of Education. In 2011, 1,314,091 laptops were acknowledged as being delivered. The national telephone company, CANTV, uses the operating system to a certain extent according to their Equipped