No, there is nothing like that. All your posts (as in every normal blogging tool) go to your main (aka index) page.
Learn about the tool your are using. You can NOT define wher a post "go".
However, you can exclude posts in certain categories to be displayed on your main/home page - by using a plugin.
More about plugins: http://codex.wordpress.org/Plugins
One that helps you to display or not to display posts:
The posts in the categories excluded from the home page will be visible only when you click on the category's name in your menu.
Furthermore, you can customize the look of the category archives by using Category Templates > see: http://codex.wordpress.org/Category_Templates
In general, the Codex is your best friend... spend some time reading it.