- habr.com ru/companies/otus/articles/579680/Самый известный из этих интерфейсов, который к тому же является одним из самых важных нововведений UNIX — это pipe (конвейер, пайп).
- bulutistan.com blog/unix-nedir/Çoklu görev ve çoklu kullanıcı işlevselliğini destekler. Unix, masaüstü, dizüstü bilgisayar ve sunucular gibi tüm bilgi işlem sistemlerinde en yaygın şekilde kullanılır.
- guru99.com ru/difference-unix-vs-linux.htmlЕсли сравнивать Unix с Linux, Unix — это многопользовательская и многозадачная система. operaсистема тинг.
- debugpoint.com Opinion Unix History: A Mighty Origin StoryBut before Linux, there was Unix, and without it, Linux would not have existed today. Unix’s origin can be traced back to the moon landing days.
- geeksforgeeks.org linux-vs-unix/Linux was developed in the 1990s by Linus Torvalds as a free and open-source alternative to Unix. Unix was developed in the 1970s at Bell Labs.
- techtarget.com searchdatacenter/definition/UnixUnix -- trademarked as UNIX -- is a multiuser, multitasking operating system (OS) designed for flexibility and adaptability.
- webopedia.com Definitions unixAn operating system that is certified by The Open Group to use the UNIX trademark conforms to the Single UNIX Specification.
- unix.org what_is_unix/Introduction Many names have been applied to the work that has culminated in the Single UNIX Specification and its attendant X/Open UNIX brand.
- kb.iu.edu d/agatOfficially licensed Unix operating systems (and their vendors) include macOS (Apple), Solaris (Oracle), AIX (IBM), IRIX (SGI), and HP-UX (Hewlett-Packard).