Real-Time Operation Systems¶
- Fixed time constraints
- Keeping deadlines
Hard Real-Time¶
- Missing the deadline results in a fundamental failure
- Secondary storage is limited or absent (need speed)
Example
- Nuclear power plant controller
- Car/Plane Autopilot
Soft Real-time¶
- Missing the deadline is unwanted but not immediately critical
- Critical real-time task gets priority over other tasks
Example
- Multimedia streaming