Macintosh or Mac in short has been the flagship product from Apple for a number of years. The first Macintosh was released in 1984 – almost 40 years ago. Since then they have released newer versions every year. Some of the older versions of macOS can be run inside virtualization software like VMware. But now you do not need even VMware as someone as created a website through which you can run older macOS inside your web browser.
This website “Infinite Mac” allows users to run a large number of older versions of macOS from inside the web browsers. It has all the versions of macOS released since 1984 when version 1.0 was released. It does not include macOS 10 or later versions.
In order to run these old and dated operating systems, you can visit Infinite Mac site at https://infinitemac.org/ and then click on any of the Mac versions that you want to run.
Since you are going to run the operating system virtually inside a web browser, you will not be access the local file system. For example, you won’t be able to open a local file inside the word processing application of the macOS being run in the web browser.
All the operating systems accessible through “Infinite Mac” are very old and it is not easy to use them for the users of modern macOS. These old macOS have the basic tools for accessing the local file system, a bunch of tools to edit files and nothing more. They demand floppy diskettes often which also have become outdated just like the macOS before version 10.
The only productive thing about being able to run the macOS operating system locally is that we can find about its various features. Those of us who never used macOS in the old days can get the experience of using these now-expired products from Apple Inc.
You can visit “Infinite Mac” website for running macOS in the web browser at https://infinitemac.org/.