On Feb 9, 2012, at 3:50 PM, steve harley wrote: > on 2012-02-09 13:26 John Francis wrote >> On Thu, Feb 09, 2012 at 01:09:02PM -0700, steve harley wrote: >>> >>> my laptop does about 100,000 mips (without considering the GPU) >> >> Are you sure you didn't add an order of magnitude there? > > yes, i'm sure; it's a quad i7 (2820QM); i took my numbers from here: > > <http://www.notebookcheck.net/Intel-Core-i7-2820QM-Notebook-Processor.40112.0.html> > > this article doesn't have my exact CPU but does have some useful comparisons, > including the ARM11 and a few i7s: > > <http://en.wikipedia.org/wiki/Million_instructions_per_second#Million_instructions_per_second> > > > >> Mind you, your main point - that a 400MHz processor is a bit underpowered - >> is spot-on. My new cellphone, for example, has a two-core, 1GHz processor. >> That's about 5x what Paul quoted for the in-car entertainment system. But >> the car system also controls more important functions (keyless entry, for >> one), so it has to be significantly more robust than one used in a phone, >> where the worst that can happen would be a dropped call. > > if i were making cars, i wouldn't have the infotainment system run any > critical functions
I know it operates the engine monitoring gauges. I doubt that it's involved with door locks. It's definitely not linked to the engine or powertrain control computers for anything other than some read-only information. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
