In The Phantom Menace, set 32 years before A New Hope, R2-D2 is portrayed as belonging to the Naboo defense forces, one of three astromech droids deployed for repair duty onboard Queen Padmé Amidala's (Natalie Portman) starship as it attempts to get past the Trade Federation blockade.
R2-D2 was part of the repair crew for the Naboo Royal Starship. He technically is owned by Naboo's elected royalty until Padme took him along for her senator duties. By the Clone Wars, Padme gave him to Anakin as she felt a droid like R2 was far more useful to aid Anakin.
TIL that as a wedding gift, Anakin gave C3PO to Padme and Padme gave R2-D2 to Anakin. In the novelization of ROTS. Anakin, having not possessions, had nothing to give. So he instead gave 3PO to Padme to watch over.
R2-D2 was present when Padmé gave birth to Leia and Luke, so he knew Luke was Anakin's son – but what he didn't know was that Anakin became Darth Vader. In addition to that, Anakin's fall was surely a painful event in R2-D2's life, one that he definitely wouldn't like to remember or even talk about.
However, as a minor, Anakin's mother may have held title, but for the fact both Skywalkers were slaves. Moreover, C-3PO was left on Tatooine after Anakin left to become a Jedi. At this point, C-3PO was in the possession and control of Shmii Skywalker as her personal property (assuming a slave could own property).
Star Wars Special - The Friendship of Anakin Skywalker and R2-D2 Explained
Did Padme own R2-D2?
R2 was later able to restore his companion during the Battle of Geonosis. After the battle, R2-D2 and C-3PO were the sole witnesses to the marriage of Anakin Skywalker and Padmé Amidala in Lake Country. After this Padmé gave ownership of R2 to Anakin while she kept 3PO.
After C-3PO and R2-D2 landed on Tatooine, Jawas picked up the two droids, fitting them with restraining bolts. The Jawas sold the robots to Owen and Beru Lars and their nephew Luke Skywalker, a seemingly minor event that would change the fate of trillions in the galaxy.
You saw how Luke's attitude completely changed when he realised that was actually Yoda and so did Yoda's behaviour. As for the r2 thing, is incredibly likely he just suspected R2 had had his memory wiped several times since they last saw each other.
Summary. Anakin's fall to the dark side had a heartbreaking effect on R2-D2, who felt abandoned and ignored by his former master. Star Wars droids like R2-D2 rarely receive emotional depth, making R2's words about Anakin's betrayal even more tragic.
Skywalker hid his lightsaber inside R2-D2's dome for the mission to rescue Captain Solo from Jabba the Hutt's palace. When he was about to be executed in the Great Pit of Carkoon, he gave the signal to R2-D2 and the astromech droid returned the lightsaber to Skywalker.
secondly, in Legends, R2 was given programming that actually restricted him. from sharing any information with Luke or Leia. about their parents or relation to one another. this was all part of the plan. to conceal this information from the twins.
To answer the original question, I'm pretty sure that R2 never knew that Anakin became Vader. He wasn't there when Anakin was named Vader, he didn't know what happened on Mustafar. All he knew is that Anakin told R2 to stay with the ship, and that was the last time R2 saw Anakin.
However, one theory argues that Obi-Wan did recognize R2-D2, but he chose to pretend not to in order to avoid telling Luke the full truth. This would explain certain signs of familiarity between the Jedi and the droid and fit Obi-Wan's pattern of subtly lying to Luke.
Following the Trade Federation's invasion of the Mid Rim planet of Naboo, C-3PO's life entered a new chapter when his owner Anakin met several off-worlders at the shop of his owner, the Junk dealer Watto, and then invited them to seek shelter at his home during a sandstorm.
R2-D2 was almost constantly around Anakin Skywalker during the Clone Wars, serving as his personal astromech. C-3PO, however, was property of Padmé Amidala after Anakin gave him to her as a wedding gift.
3PO ended up in a cave (only his upper body was still intact), and he became a local legend known as "The Storyteller". Two young kids called Otalp and Remoh escaped their oppressors and visited 3PO, who told them the story of Luke Skywalker. Then the oppressive alien species showed up, and shot 3PO to death.
C-3P0 didn't; his memory was wiped at the end of Revenge of the Sith to prevent him from spilling the beans. Why was Anakin always more attached to R2D2 even though he literally built C-3PO? R2-D2 was almost constantly around Anakin Skywalker during the Clone Wars, serving as his personal astromech.
Anakin Skywalker, a Tatooine slave boy, was gifted in engineering -- and was strong with the Force. To help his mother, Shmi, he secretly built a droid: C-3PO. In his earliest form, Threepio had no outside covering, and so appeared “naked,” with his internal parts and motors showing.
The lack of recognition could have come from an old man simply not remembering the passing droids of his youth. Lastly, Owen didn't seem the sentimental type to form any emotional attachments to droids. Being a practical man, he viewed them as tools to be used and replaced when they no longer functioned.
So Owen had no idea his "new" protocol droid's name was C-3PO. A counter to that might be asking why Owen didn't recognize C-3PO's distinct voice, but again, it's worth remembering Owen hadn't seen C-3PO in more than 20 years. It's possible Owen simply forgot what C-3PO's voice sounded like.
According to Peli Motto, Jawas are furry. In Chuck Wendig's novel Aftermath, a gangster named Adwin Charu claimed Jawas have a musky, animal odor that's reminiscent of a colony of wet rats. All this corresponds rather well to the traditional idea that Jawas evolved from rodents, suggesting Jawas like quite rat-like.
It is an ability created by photo-chemicals in their eyes. Jawas are believed to have evolved from a rodent like creature on Tattooine. Their glowing yellow to red eyes originally evolved to enable them to see in the dark.
