Using Joomla,for A Webpage With Pictures,what’s The Better Choice? Static Content Item Or Just Content Item?

You should use static content if its not changing … CAuse you don’t want the scripting language to recreate those items everytime your request. If you are always adding pictures in a regular basis then make it dynamic as an item. But if your just adding pictures with no user interactivity. Static content would be [...]

What’s Better To Use In Joomla For A Page With Pictures, Static Or Just Content Item ?

Both are ok (according to your link structure)

What’s The Difference Between A Static Content Item And A Content Item In Joomla ?

Generally content in CMS (content management systems) is stored in a database, while static content is a page uploaded to your server.
In other words, a static content page, has a fixed address (eg: http://mysite.com/contentpage.htm). While a content page in Joomla has to be accessed as http://mysite.com?pageId=4
This means, that you only have one generic “template page, [...]