HP 9000 are Unix workstations from HP, so contact HP (www.hp.com).
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Javier Vizcaino. Ability Electronics. [log in to unmask]
  Starting point:        (-1)^(-1) = -1
  Applying logarithms: (-1)*ln(-1) = ln(-1)
  Since ln(-1) <> 0, dividing:  -1 = 1     (ln(-1) is complex, but exists)

De: Cristian Sferle <[log in to unmask]>

>Hello All  !
>
>Does somebody knows anything about HP 9000 series.
>It has 2,5MB of memory, a 5.25" FDD, no HDD, and I don't know hat kind of
>OS would work on it.
>It's made in 1985.