There's many things you didn't know about The TARDIS like we will tell you what is the Safist room in the TARDIS and wheres the pool at and the library and many more to come when the series unfolds.
The Time Lord has A computer in Galifreyan and tells him what's happing, the date.
The TARDIS has many, many rooms. For example there's a pool, telescope, and a library.
The Control RoomEdit
In the Control Room is the safeist room in the TARDIS. While the Doctor did'nt know that he has previous Control Rooms like for example: The Tardis saved the 10th Doctor's Control Room. Just for keeping.