i want to know in this circuit diagram that how these capacitors form voltage divider...

thnkzz alott

I am unable to understand this circuit diagram can anyone plz explain me this circuit diagram......what is the use of transistor in this circuit

 

Hello,

I think the capacitors will make a charge pump to create a negative voltage for the RS232.
The IC is maybe a MAX232.

Greetings,
Bertus

PS pictures can be best attached as PNG.