so here is about ADDRESS BUS(address lines) and DATA BUS(data lines)

ADDRESS LINES(ADDRESS BUS)-

the address lines originate from the CPU, the exact no. of these lines depends on the specific CPU,the larger the no. of lines,the greater the capacity to provide alternative addresses(binary no.s) and hence greater addressing capability. With 'n' address lines,the addressing capability is 2ⁿ 

Sometimes the o/p lines act as chip selects or chip enables. The set of address lines is also called Address Bus.

DATA LINES(DATA BUS)-

 the no. of data lines ,like that of the address lines vary with the specific CPU. Like the address bus the data lines are often shown collectively as data bus. The data bus is bidirectional, as the information on the address bus always flows out of the CPU so address bus in unidirectional , the data can flow both out of  the CPU as well as into the CPU on data bus.