- users.cs.duke.edu ~alvy/courses/unixtut/…UNIX® License Plate UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since.
- otvet.mail.ru question/46201516UNIX (читается юникс) — группа переносимых, многозадачных и многопользовательских операционных систем.
- opensource.com article/18/5/differences-between-…Even so, most software developers, even those who have grown up during this venerable "Linux revolution" have at least heard of Unix.
- britannica.com technology/UNIXUNIX, multiuser computer operating system. In the late 20th century UNIX was widely used for Internet servers, workstations, and mainframe computers.
- 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).
- ciksiti.com ru/chapters/1256-is-linux-unix---…Те из Unix - это AIS, HP-UX, BSD, Iris. Напротив, у Unix меньше всего версий. Разница между Linux и Unix.
- diffen.com difference/Linux_vs_UnixLinux OS is great for small- to medium-sized operations, and today it is also used in large enterprises where UNIX was considered previously as the only option.
- softwaretestinghelp.com unix-introduction/Unix is the most powerful and popular multi-user and multi-tasking Operating System. The basic concepts of Unix originated in the Multics project of 1969.
- linuxandubuntu.com home/top-10-unix-based-…This article provides a brief history, philosophy, specification of UNIX and discusses the top ten operating systems of the UNIX systems.
- The unix time stamp is a way to track time as a running total of seconds. This count starts at the Unix Epoch on January 1st, 1970 at UTC.