Re: Write Signal on Disk II Question

["Bryan Parkoff" <nospam@nospam.com>]

> A little elementary school level math and a calculator can help :)
> If the nominal delay between consecutive 1 bits is 4 uS at 300 RPM,
> it will be 4 * 300 / 280 =~ 4.29 uS
> and 4 * 300 / 320 = 3.75 uS at 320 RPM

    Where did you get "4"?  It looks like that the disk spins from 0 degree 
to 359 degree five time each 1 second.  RPM stands for rotation per minute. 
You multiply 5 rotation by 60 seconds and it equals to 300 RPM.  How do you 
get microsecond?

Bryan Parkoff