
Description: Windows 2000 is an operating system developed by Microsoft in 2000 as the successor to Windows NT 4.0. It provided improved stability and brought advancements including Active Directory, Group Policy, disk quota support and other system management features.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ReactOS is an open-source operating system that aims to be binary-compatible with Windows applications and drivers. It provides a Windows-like desktop environment and functionality for users looking for a free and open alternative to commercial Windows operating systems.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API