A system boundary is a boundary that separates the internal components of a system from external entities. These entities can also be thought and be called as actors. In a use case diagram, a system boundary is represented by a rectangle that is drawn to enclosed the internal components of a system. Any entities outside the rectangle (i.e. the system boundary) are hence the actors. To get a better idea you may do a search of the following term in Google Images:
system boundary uml
Boundary Layer Infrared Suppression System
The environment - factors around the information system that influence it The boundary - the end of the information system
The heliosphere boundary.
No
It's a transform boundary between two plates. The resultant fault of a transform boundary.
the point where a system ends and surroundings begin
it is a closed system. no matter or energy flows across the boundary
The mid-ocean ridge system is the longest continuous divergent plate boundary on Earth.
the ort cloud of comets
closed system
It's a transform boundary between two plates. The resultant fault of a transform boundary.
It's a transform boundary between two plates. The resultant fault of a transform boundary.