Media playback is unsupported on your device

Dropbox founder Drew Houston explains his success

1 July 2014 Last updated at 00:17 BST

Drew Houston founded online file-sharing service Dropbox seven years ago. The firm is now estimated to be worth about $10bn (£5.9bn).

But it was not an overnight success, and he had several failed ventures along the way.

Mr Houston explains how he came up with the idea for the firm and the factors which, he believes, have made it work.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.