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Old 03-22-2007, 04:50 PM
Scott Seidman
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Default Re: What is real-time?

"Andor" <[email protected]> wrote in news:1174574771.790706.183280
@p15g2000hsd.googlegroups.com:

> Randy wrote:
>
>> 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.

>
> Now think about it: the work a system does is to transform an input
> into an output. And the "period" limits the amount of time that the
> system may spend on the work, ie. the amount of time the system has
> available to transform an input into an output. So, by your
> definition, a real-time system is a system that has bounded input/
> output latency.
>


I think the deadline definition is better than the latency definition.

Now let's talk "hard" vs "soft" real time!!

--
Scott
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