This is the 9227th most frequent Russian word.
собран
"Собран" means "assembled" or "collected."
In this sentence, 'собрана' is the past participle indicating the place where the computer was assembled, showing a passive voice usage.
Эта модель компьютера собрана в Китае.
This computer model is assembled in China.
Here, 'собран' describes someone's emotional state, indicating they are focused and self-controlled, a figurative use of the verb 'собрать'.
Он был собран и готов к выступлению.
He was composed and ready for the performance.
In this sentence, 'собран' is used to state how the table was put together or constructed from specific materials, indicating a physical assembly.