I really would like to know how the pulsating of the sleep light of
Apples iBook is controled. An analog hardware circuit, the BIOS or a
MacOS X kernel module?

I could swear it pulses slower/faster from time to time. A friend of
mine says Apple implemented an Artificial Life algorithm which
controls the light. Are there any sources which corroborate this
theory? If not: What other variables exert influence on the pulse?

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Request for Question Clarification by googleexpert-ga on 28 Jun 2003 09:57 PDT

I am not familiar with the technical terms but 
from what I've read it seems to be a Light Controller or in your case,
an Analog Hardware circuit.

I did not find any mention of an Artificial Life Algorithm or how the
the pulsating light is conotrolled.

Please let me know if this helps you.

Source:
Computing device with dynamic ornamental appearance 
http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=20&f=G&l=50&co1=AND&d=PG01&s1=Apple.AS.&OS=AN/Apple&RS=AN/Apple

Active Enclosure for Computing Device
http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=17&f=G&l=50&co1=AND&d=PG01&s1=Apple.AS.&OS=AN/Apple&RS=AN/Apple