I disagree. Not only about books, but also about PCs with keyboards. They'll still be used for years to come.
Amazon are selling more electronic downloads then physical books in the US, book stores are closing all over the world (Waterstones as an example in Dublin). Cloud computing will mean there will be no need for massive storage space and disks on a PC. Already more and more people are using wireless technology and you can get wireless printers as well.
I'm not saying I like it, just the way things are going. Books and laptops will become an "old" persons thing, just like CDs instead of downloads