Real-time operating systems

A real-time operating arrangement (RTOS) is a multitasking operating arrangement advised for applications with anchored deadlines (real-time computing). Such applications cover some baby anchored systems, auto engine controllers, automated robots, spacecraft, automated control, and some all-embracing accretion systems.

An aboriginal archetype of a all-embracing real-time operating arrangement was Transaction Processing Facility developed by American Airlines and IBM for the Sabre Airline Reservations System.

Embedded systems that accept anchored deadlines use a real-time operating arrangement such as VxWorks, PikeOS, eCos, QNX, MontaVista Linux and RTLinux. Windows CE is a real-time operating arrangement that shares agnate APIs to desktop Windows but shares none of desktop Windows' codebase.citation bare Symbian OS aswell has an RTOS atom (EKA2) starting with adaptation 8.0b.

Some anchored systems use operating systems such as Palm OS, BSD, and Linux, although such operating systems do not abutment real-time computing.