On 27 April 2012 19:03, Viesturs Lācis <viesturs.la...@gmail.com> wrote:

> Sorry, but I think that there are 2 options - either it is 0 or 1.
> Your answer seems to indicate that there is third option.

Think in terms of TTL logic, there is 0V, 5V or unconnected.
In the latter case the value will be whatever anything else chooses to
write to the Signal

-- 
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.

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