Aug 10, 2021 08:00:00

A genealogy that shows what kind of OS has been developed & how it was derived is released

The operating system (OS) is the underlying program of a computer, typically Microsoft's Windows , Apple's macOS , and various Linux distributions . Since the concept of OS was born in the 1950s, various OSs have been developed and disappeared, or have been inherited by other OSs. -Published by Alphonse Eylenburg, who creates infographics on languages, religions, software, etc.

Operating Systems: Timeline and Family Tree
https://eylenburg.github.io/os_familytree.htm

More than 830 OSs are listed in the genealogy, and it is said that it includes OSs that are so old that most people have never heard of, and even those that are delicate whether they are included in the OS by definition. However, it does not cover hobbies and small embedded systems, and it does not list all distributions of Linux , Berkeley Software Distribution (BSD), and Solaris.

Looking at the genealogy, the year when the OS was first born was 1951. One of them is LEO iOS, which was developed based on a computer called EDSAC developed by the University of Cambridge, and in 1951, it ran the world's first business application.

The programs 'Share / 43' and 'Share / 7' built into

the UNIVAC I developed by Remington Rand in the same year are also counted as a type of OS. However, there is no OS that can be a descendant of these for one generation only.

Around 1954,

General Motors ' research division began developing an OS for the IBM 704 , the first mass-produced computer equipped with floating-point arithmetic hardware , and in 1956, the GM-NAA I / O was developed. .. Many of the early IBM mainframe operating systems were developed by customers.

Many mainframe operating systems were developed in the 1960s and 1980s, many of which were used on IBM mainframes.

Among them, IBSYS , which was announced in 1960, was inherited by OS / 360 after that, and various upgraded versions and derivative OSs also appeared.

The most prominent in the genealogy is UNIX, which was first developed at AT & T 's Bell Labs in 1969. Over half a century since its development, various derivations and sub-systems have been born, and there are many Unix-likes that have been officially certified and Unix-likes that have not been certified.

This is the genealogy including all the derivations from UNIX.

Since the release of Unix-like BSD in 1977, various variants have appeared, and the OS installed in PlayStation is also a fork of

FreeBSD, which is an open source OS derived from BSD.

In addition, Apple's macOS,

iOS , tvOS , watchOS , audioOS, etc. are also following the trend of BSD.

Another Unix is

Solaris , which was developed by Sun Microsystems and was taken over by Oracle in a subsequent acquisition.

Linux , announced in 1991 by then-university student Linus Torvalds , has since spawned a variety of Linux distributions. In addition to Ubuntu and Fedora , Google's Chrome OS and Android OS are based on the Linux kernel. Mozilla's Firefox OS was also based on Android, so it's a derivative of Linux.