Books, tools (hand held and non-computerized power tools), cars, locomotives, etc.
The internet was designed to find a way to deliver messages in the event of a nuclear war so it stands to reason any computers who haven't had their chips fried would be able to connect to the internet assuming they could find a working ISP. We'd have to take a step backwards, or sideways in technology until the infrastructure could be rebuilt.
You should read about John Titor, he explains technology in the future after more than 3 billion people are destroyed by WW3.
http://www.johntitor.com