On 22 Mar, 15:11, Randy Yates <y...@ieee.org> wrote:
> "Rune Allnor" <all...@tele.ntnu.no> writes:
> > On 22 Mar, 14:24, Randy Yates <y...@ieee.org> wrote:
>
> >> In my opinion any discussion of latency should be removed from the
> >> definition of "real-time." These are two "orthogonal" concepts.
>
> > Interesting. Could you elaborate?
>
> A real-time system is a system that has a period and a well-defined
> maximum amount of work to be done in that period and that can perform
> that amount of work in that period.
>
> Latency is input to output delay.

Ah, right. So a TV set is a real time system because of the
frame rate, and all the work that needs to be done between
frames. A satellite TV system is also restricted by the
frame rate; the two-way travel time back and forth to the
satellite doesn't affect that.

Yes, I think you are right.

Rune