The HP Pavilion is a line of consumer desktops and laptops manufactured by Hewlett-Packard.
The HP Pavillion dv9618ca is a BestBuy exclusive, so your best bet would be to head on over to BesyBuy.com (or BestBuy.ca in Canada) to check it out!
The HP Pavilion is a line of desktops and laptops dating back to 1995. It does not refer to a particular model.
According to this fact sheet, 2005 was when they were first manufactured....
Pavilion is a product line from HP. There are hundreds of desktop and laptop models in this line, each of which need different drivers. You need to be more specific on what model you need drivers for.