Hi Herbert Graf!   At 07:38 PM 4/11/01 -0400 you wrote:
 >> Today we have up to 1.5GHz processors in our stores.
 >>
 >> 300,000000/15000000/4=0.05m  (~2 inches)
 >> is a quarter of wave length.
 >>
 >> I didn't hear something about 2GHz CPU are expected.
 >> Maybe it is a limit or I missed something?
 >>
 >> What are your info, guys?
 >
 >        The highest frequency involved in computers is usually limited to the
 >processor die itself, those things usually measure at most 10mm square, so
 >no, there shouldn't be a limit any time soon purely due to wavelength issues
 >(you're talking about the 30~100GHz range there). OTOH there ARE a lot of
 >issues that must be surpassed in order to go much beyond 4GHz (4GHz not
 >being any concrete limit, it's just that the P4 does have a 2GHz version in
 >existence (not for sale though) and parts of the P4 run at twice the CPU
 >clock speed). I'm not quite sure why you are concentrating on quarter
 >wavelengths though. TTYL

Since it is the shortest distance between 0 and maximum of wave.
I thought that different resonances and reflections will balk
to wave outspread without losses.
If your info is correct - thanks for that!
In this case we probably will see P10 relatively soon (~ after 3-5 years)<g>.

--
Stanislav Rabinovich

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