Arduino Nano + 7 Segment Display

I would like to use a 4 digit 7 segment display for a project at university and we have been given an arduino nano.

... will I need any resistors or other components?

... Is this the buffer I am looking for?

... Would it be possible to use this buffer instead?

What is your major? If it's technology or engineering we don't want to do too much of your work for you.

Don