Different numbers should activate different LED

Hi,
I am designing a circuit that will take numbers from keypad and then lit up leds/bits which are associated to that number which should previously stored against that number
eg if i enter 1234 it switch on led x,y,z
Its kind of electronic password but not exactly because i want inputs and then use the memory to lit up the related leds.
Can anyone guide please whats the best equipment,software and language i should use

I hope that make sense.

Thanks

 

Thanks steve