Maximum amount of ram that can be installed

It depends on the computer's model and other factors. Append the last three characters of its serial number to http://www.everymac.com/ultimate-mac-lookup/?search_keywords= and load the page.

(121502)

MacBook (Mid 2006) (Model ID 1,1): 2GB

MacBook (Late 2006) (Model ID 2,1): 3GB

MacBook (Mid 2007) (Model ID 2,1): 3GB

MacBook (Late 2007) (Model ID 3,1): 6GB

MacBook (Early 2008) (Model ID 4,1): 6GB

MacBook (Late 2008) (Model ID 4,1): 6GB

MacBook (Aluminium Late 2008) (Model ID 5,1): 8GB

MacBook (Early 2009) (Model ID 5,2): 6GB

MacBook (Mid 2009) (Model ID 5,2): 6GB

MacBook (Late 2009) (Model ID 6,1): 8GB

MacBook (Mid 2010) (Model ID 7,1): 16GB

Cheers,

Adam

Is it a Macbook or a Macbook Pro?