This is not a hard and fast rule, and some operators do have additional rules such as 21 days out of 28, 28 out of 42, as well as a maximum number of days offshore in a year, depending on the type of installation.
Windows Embedded Automotive is a variation of Compact for embedded systems in cars. Windows Embedded Pro is designed for intelligent systems: machines with embedded Internet-connected devices that gather data, analyze it and communicate with other systems. Windows Embedded Standard is a modular operating system that allows users to make choices about various implementations within their environments. Windows Embedded Handheld is designed for portable devices like those used in retail, manufacturing and delivery companies. Windows Embedded Enterprise is for embedded systems in industrial devices. Windows Embedded Server and Windows SQL Server for Embedded Systems.
Windows IoT. Windows IoT, formerly Windows Embedded, is a family of operating systems from Microsoft designed for use in embedded systems. Microsoft currently has three different subfamilies of operating systems for embedded devices targeting a wide market, ranging from small-footprint, real-time devices to point of sale (POS) devices like kiosks.