R2-D2

R2-D2, or Artoo-Detoo, was an astromech droid.

Naboo service
Artoo underwent maintenance in the droid pool of the Royal House of Naboo.

The Clone Wars
Artoo was tinkered with by Jedi Knight Anakin Skywalker, and would be disassembled and reassembled on several occasions during the Clone Wars.

The Rebellion
Artoo was modified and upgraded by Rebellion technicians during his period of service in opposition to the Galactic Empire.

New Republic
Artoo was modified and upgraded by New Republic technicians.

Dormancy
By this period Artoo was an ancient, legendary war hero with over seven decades of uninterrupted operation in his past. He placed himself into low-power mode, entering a period of dormancy during which his diagnostic systems ran at full power to sift through the information recorded in his databanks. He was able to recall many of his previous exploits, but found information on his recent activities missing.

He was kept in various locations in the Resistance base on D'Qar, but was eventually consigned to a storage alcove off the central command room and covered by a tarpaulin. Jessika Pava discovered him here after hearing of his and Luke's exploits from C-3PO, and attempted to awaken the dormant droid. Artoo was unable to shut his diagnostic systems down despite the faults in his circuits, and desired an end to his existence and the dreams that plagued him.

Physical appearance and equipment
R2-D2 was a domed, bullet-shaped astromech droid standing at roughly a meter in height with a white-and-blue shell. Powered by a droid brain, his burnished dome contained a reflective black eye piece above a processor state indicator which blinked red and blue when the droid was operative. His internal systems featured databanks and archives full of raw information, which were checked by diagnostic systems and powered by a computer core.

Personality and traits
Artoo was a pragmatic droid with little desire for the poetics espoused by his counterpart, C-3PO. Until his dormancy, Artoo didn't believe a droid could have anything other than a physical presence in the universe, knowing the Force wasn't with droids, but grew curious when he began "dreaming" many of his previous experiences as his internal systems defragmented his databanks.