i believe ED-E can only get unconscious.
Not entirely true but normally true. One example is when your in the Generator/Array basement out near Nellis AirForce Base performing the "Ant Misbehaven" quest. If you're in the area around the generators, ants and bombs and one of the bombs blows up too close to ED-E, then ED-E will be dead dead, blown to smitherines.
Yes, it is possible. Not recommended. You meet much more useful companions for the quest throughout the storyline for Dead Money, and without the right companions; the whole DLC can get quite frustrating.
EDE = electronic data exchange
Ede Szigligeti was born on March 8, 1814.
Ede is a Dutch village.
Ede Magyar died in 1912.
Ede Magyar was born in 1877.
Charles Ede died in 2002.
Nick Ede was born in 1974.
Ede Komáromi was born in 1928.
Amatoritsero Ede was born in 1973.
Jim Ede was born in 1895.
James Ede was born in 1984.