The Atlas Supervisor was a step forward.
Many believe it to be the first recognized contemporary operating system, having debuted with the Manchester Atlas in 1962.
It was dubbed “the most significant advance in the history of operating systems” by Per Brinch Hansen.
Examples of operating Systems
Unix was created in assembly code at first.
Based on his experience with the MULTICS project, Ken Thompson created B, which is mostly based on BCPL.
B was replaced by C, and Unix, which was rebuilt in C, grew into a huge, interconnected family of operating systems that has influenced every current operating system.
The Berkeley Software Distribution family, which includes FreeBSD, NetBSD, and OpenBSD, is a subset of the Unix family.
Although they may also be used on personal computers, these operating systems are most typically seen on webservers.
Many of the protocols presently frequently used by computers to connect, send, and receive data across a network were widely developed and developed in BSD, and as a result, the Internet owes a large part of its existence to BSD.
The World Wide Web was originally exhibited on a set of computers running NEXTSTEP, a BSD-based operating system.
Apple Inc. developed, marketed, and sold macOS (previously “Mac OS X” and later “OS X”), a range of open core graphical operating systems, the most recent of which is pre-loaded on all presently selling Macintosh computers.
macOS is the successor of Apple’s first operating system, Mac OS, which has been in use since 1984.
Unlike its predecessor, macOS is a UNIX operating system based on technologies created at NeXT through the second half of the 1980s and until the firm was bought by Apple in early 1997.
The operating system was initially published as Mac OS X Server 1.0 in 1999, followed by a client version in March 2001. (Mac OS X v10.0 “Cheetah”).