Abiogenesis is spontaneous whether it occurs naturally (read: without intelligent intervention)..
It doesn't occur this way, as science has repeatedly shown.
or occurs via Intelligent Design.
If it occured this way, then you have a living intelligence giving birth to life. In other words: life from life.
In either case, there is no such thing as abiogenesis ("spontaneous generation") except in the rather fruitful minds of evolutionsts pushing their belief in naturalism.
Unknown.
As far as logic is concerned, life could come from a computer. Logic doesn't presume that the Designer is alive (in any sense that we'd understand, anyway).
Well, if a computer builds your DNA from lifeless acids and bases, then animates you...well, then you were created via abiogenesis.