Bernard wasn't born like humans or any other being like humans but was created like the others of his kind. He is best on a human named Arnold, the partner of Robert Ford. Bernard was created right after the massacre at the park, the first one. A masacre that was started by Arnold who wanted to shut down the park or well all parks due to his fear of hosts that he created, like Dolores and Teddy, taking over the parks and world, and what would they do to humans for what they do to them. The whole project originally started by Arnold Weber and his friend, and partner Robert Ford. Arnold was the first to figure out how to make hosts, as Ford eventually managed to as well, with Arnold help. Dolores Abernathy and Teddy Flood were the first created hosts, so Dolores was the first of them all. They worked on them for a bit more and then opened the parks. From time to time Arnold added more and more upgrades that changed the hosts and made them more advanced, which meant he risked the chance of them getting fully aware of the truth, wake up and retaliate as did Ford, too in some ways. Arnold got scared and couldn't go through with it any longer. He used a new personality, Wyatt, that he and Ford planned to put in a villain, to create a villain and put it inside Dolores, he then got her and Teddy to kill all hosts, then he made Dolores kill him, and then her boyfriend, the man she loved, who loved her, Teddy Flood, then herself, which was what had happened. Which is how the masacre evan happened to begin with. So things never stopped there. After that, all hosts, including Teddy and Dolores were rebuild and put back to work. As the parks were quickly reopened. Dolores was made to help Ford make a host copy of Arnold, with a pearl that had all Arnold memories.
Dolores was chosen for that due to her knowing Arnold the most, and the fact that she could make a host unlike many others of her kind. Previous tries Ford had failed but eventually it worked, thanks to Dolores and her close connection to Arnold, who was like a father to her and a mentor. Once she build a perfect replica her memories were erased like always. Except this time from that too and she was put back to work right away, like nothing ever happened. As she and some other hosts included Teddy were put in Westworld park. As that happened Ford had a meeting with the host(Specific kind of robot) that looked like Arnold, talked with the same tone of voice and had his memories. Together they decided to name him Bernard. As his memories of all of that were erased and he became an employee of the company in charge of the hosts, and that was all he knew, as well as he still had Arnold Weber memories but with the nanw Bernard Lowe, instead of Arnold Weber. Bernard had no idea that he wasn't human nor that his memories weren't real or well not really his that is. At least not just yet. As far as he knew he was the guy with the memories and that the memories were his past, as the partner of Arnold lied to him all his life so that he would keep working with him and not help the hosts(Robots) or anything like that, nor repeat what Arnold did, that was why the memories to do with the masacre and the persona Wyatt erased from his mind, and replaced with other memories. He also was worried that Bernard would shut down if he knew the truth or anything like that. Not to mention that either way it would end badly if Bernard knew the truth, Ford was sure of that. Which was what Ford tried to avoid. Ford didn't want anyone to know the truth, not just Bernard but other employees too. So as far as all, including Bernard were concerned, Bernard was Ford's friend and one of the relatively new employees, which made things easier on Ford.
However, in order to keep the truth hidden, Bernard Lowe had to live on the Island and in specific location there so that he didn't start suspecting and realizing the truth or anything like that. Also Ford made sure that Bernard had a talk with a host, or program that looked like Arnold's wife, so he won't suspect a thing and it worked for a long time. Until the truth slowly began to unfold around Bernard and slowly he ended up finding out the truth. Until then so, Bernard worked with Dolores and at times Maeve, as well as other hosts(hosts), to make sure that they were all were working well and all. Just as Ford did and just as Arnold Weber used to do.
Bernard was unaware of the truth like the other hosts for a very long time. When hosts began to wake up and retaliate, as well as breaking loops and such, Bernard was the only one who still wasn't aware of anything, as he helped his co workers with figuring out what was going on and why, as well as how it was all happening. Only Ford knew more than he let on but kept it a secret from all, especially from Bernard.
[Still in the works but am ready to rp, while I work on it]