What are Unix variants?

The term Unix variant refers to both implementations of the Unix operating system whose code-base lineage can be traced back to Research Unix, as well as Unix-like systems which emulate the look and feel of traditional Unix and feature a similar API to traditional Unixes.

Why are there so many versions of Unix?

Because an accident of history made it into a “foundational” operating system for computer science graduates, and then into a product companies could buy and change. UNIX was created by researchers at Bell Laboratories, which was then part of the phone company (AT).

Who developed Unix?

It certainly was for Ken Thompson and the late Dennis Ritchie, two of the greats of 20th-century information technology, when they created the Unix operating system, now considered one of the most inspiring and influential pieces of software ever written.

When was Unix developed?

November 3, 1971
Unix/Initial release dates

What is Unix version?

Some past and present commercial versions include SunOS, Solaris, SCO Unix, AIX, HP/UX, and ULTRIX. Freely available versions include Linux, NetBSD, and FreeBSD (FreeBSD is based on 4.4BSD-Lite).

What are the various Unix variants available in market?

There are various Unix variants available in the market. Solaris Unix, AIX, HP Unix and BSD are a few examples. Linux is also a flavor of Unix which is freely available. Several people can use a Unix computer at the same time; hence Unix is called a multiuser system.

What is the difference between Unix and Unix like operating systems?

UNIX is Unix and Unix is unix. But unix may not be Unix and Unix is not always UNIX. Unix is the genericized trademark of UNIX-Like systems. unix is the common term for UNIX like system.

What is a Unix like operating system and how does it differ from Unix?

A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. A Unix-like application is one that behaves like the corresponding Unix command or shell.

Who developed UNIX?

Is a version of UNIX that was developed by an open source community?

In 1991 he released version 0.02; Version 1.0 of the Linux kernel, the core of the operating system, was released in 1994. About the same time, American software developer Richard Stallman and the FSF made efforts to create an open-source UNIX-like operating system called GNU.