Stream2 was called "operating system", but due to the fact, that it was still based on the CPCs' own operating system, it was rather an extension like GEOS or MS Windows 3.11. The advantage of this concept was, that it is still possible to run smaller [[Locomotive BASIC]] programs and a some of the old CPC software.
A big problem for the success of Stream2 was, that it was commercial software and copy-protected. It's price was relative relatively high. Released in the middle of the 90ies90's, when most people weren't interested in spending money for CPC software anymore, it hasn't been sold very often. Aside from As well as the disc version, there was a ROM version (that boots from ROM) later on, but probably only available for customers of the disc version.
== MoDOS ==
MoDOS was a replacement of Amsdos and included a new file system called "Prem". Prem formatted 40 track discs with a capacity of 212KB (instead of 178KB). Similiar to the FAT format it was able to handle sub directories inside an unlimited tree structure. The below image below shows the Stream2 desktop, while both drive windows are open. (Left: Prem formated disk, Right: Amsdos formated disk). Files could be copied seamless between the two formats.
[[Image:stream2 1.png|320px|Stream2 can work with both Amsdos and a Prem formatted disks. Left coloum shows a Prem formated disc(In drive A), while right coloum shows a Amsdos formatted disc(In drive B]]