From Longman Business Dictionary
InternetIn·ter·net /ˈɪntənet-tər-/ noun the InternetCOMPUTINGTELECOMMUNICATIONS the network of computer systems that allows computer users around the world to exchange informationThese regulations have been published on the Internet.
Do you have access to the Internet?
→ compare extranet, intranet → wireless internet