suppose there is a machine, which has 18 address signals, 4 control signals and 8 data signals. the machine also has 18-bit address bus. how long should the program counter be of this machine?

solution:

the right option is a

to adding   a new row to a table we   have to do process last table cell and pressing tab.

this is the process to add new row in the cell:

* to add a row below the cell, click insert below in the rows and columns group.

thus this is the required right answer.