Laptop connection

Question

how do i setup my laptop to access the internet, On my main desktop unit i am using the dlink all in one ADSL2+ starter kit system and have no problem accessing the internet on this unit but am at loss on how to access and use this programme on my laptop.the dlink disc No.is DSL-2740BM. i do hope that you can assist me i am 84 years of age and am at a complete loss
c.e.remmett