drones were members of a race called "The Preservers", which Spock had suggested in the original series episode The Paradise Syndrome might be responsible for why so many humanoids populate the galaxy. Coincidentally, in the novelization of Star Trek: The Motion Picture (written by Gene Roddenberry), the V'ger entity notes that the Ilia probe is resisting the programming given to it because of residual memories and feelings for Decker, from its precise replication of the Deltan lieutenant. When V'ger becomes aware of this, it decides that "the resistance was futile, of course".
The extra section of the game Star Trek: Legacy contains the "Origin of the Borg", which tells the story of V'ger being sucked into a black hole. V'ger was found by a race of living machines whichto try to explain how the V'ger vessel was created. Here is why:
Fact #1: The Borg have been in existence since the mid 15th century.
Voyager 6 (V'ger) was created and launched into space in the late 20th century. The Borg were in existence long before NASA was created, 500 years or more. Even if the "black hole" had time warped Voyager 6 back 500 years in the wrong direction it was originally heading, the technology differences are massive. As to the origins of the Borg, no true information has made available except that the Vardwar confirm in Star Trek Voyager that the Borg have been in existence since at least the early 15th century by human time frame and Seven of Nine confirming that much of Borg history