So just what exactly is an embedded system? |

So just what exactly is an embedded system?

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I've heard several definitions, but none of them are 100% satisfying. One of the best was: "An embedded system is one you don’t even know is there until it stops working." Another was: "An electronic system that contains a computer that doesn’t look like a computer."

I like both of these but ... I want more. Does anyone have a definition that will make me jump up and down shouting "Yes! That's it!"?

Discussion started by Clive Maxfield , on 30 October 09:56 AM

Replies

Clive Maxfield, 2009-11-05 11:32:27

Hi Larry -- thanks for your feedback -- I must admit that I do like the term "pervasive computing" -- I hadn't heard that before -- regards -- Max

Larry Ricci, 2009-11-05 10:54:38

Excellent! Here at www.Eurotech-inc.com the definition of an 'embedded system' or 'pervasive computing is fundamental. Here is the short take.

1) An Embedded computing device has intelligence that can benefit the specific device or installation. Often the link to the enterprise/external world is not there or is an after thought.

2) A Pervasive computing device has the interface to the external world built in. Its process intelligence is shared and benefits the larger environment.

You bring us the issue of the 'restful' interface. Very true, most embedded pervasive systems are not noticed until they do not work. However, some, like a TV set or a traffic light, demand some attention. The point is the best design demands no interaction until it is needed, and it is aware of your situation when you need it.

Larry Ricci
EurotechFan