RAM and ROM

 

RAM Memory

64K Ram memory
Up to 16 KBytes can be addressed as video-RAM
by VIC-II expandable to 576 KB

 

ROM System

CSG C251913-01 contain Commodore BASIC V2
and CBM C64 Kernal Rev. 3

CSG C901225-01 is a character generator ROM

Total 20 KBytes ROM