It does not require any additional operating system or a virtual machine. Regardless of its reputation, Internet Explorer is the best browser to load JavaScript quickly and render pages reliably and consistently. And whether you decide to use Chrome, Firefox or Safari as your primary browser, there are not many better tools than IE as a backup. In addition to this, it is recommended to have at least two different browsers installed on the device. In this case, Internet Explorer renders these websites more reliably than its competitors. It means that there are lots of websites specifically developed for Internet Explorer as the main priority. Secondly, Internet Explorer is still the most popular browser on the planet.
One of the benefits of using IE on a Mac is that is makes operating multiple machines simpler. Although switch-over from Windows to Mac devices is quite simple, there are still some applications that a person working on a Mac device for the first time would like to have at hand.