ORM get you out of the business of writing SQL and allow you to manipulate a datastore purely through PHP code.

	$model = Mage::getModel('catalog/product')->load(27);
	$price = $model->getPrice();
	$price += 5;

In the above example we're calling the methods "getPrice" and "setPrice" on our Product. 
However, the Mage_Catalog_Model_Product class has no methods with these names. 
That's because Magento's ORM uses PHP's _get and _set magic methods. 

If you wanted to get all the available data on a Model, call $product->getData(); to get an array of all the attributes. 

Magento's ORM also contains a way to query for multiple Objects via a Collections interface. 
The following would get us a collection of all products that cost $5.00

	$products_collection = Mage::getModel('catalog/product')

Collections use the PHP Standard Library to implement Objects that have array like properties.

	foreach($products_collection as $product) {
	    echo $product->getName();