No comments by default?

Hi there, sorry of this is a complete newbie kinda question - but I've looked everywhere and can't seem to find an answer.

I'm using Wordpress as more of a CMS system for a standard website - so all the pages, and posts are for information purposes rather than in the standard blog type scenario.

Is there any way that I can have the comments tick boxes in the admin section set to 'no' by default instead of ticked? or is there anyway to turn off comments as standard?