This is a big decision when it comes to buying a saxophone. A lot of newcomers to the instrument don't even think about used saxophones as an option. If you are on a limited budget, or are not afraid of the research and legwork involved with a used saxophone, that may be the way to go.
Medical Definition of MENTAL CAPACITY. 1. : sufficient understanding and memory to comprehend in a general way the situation in which one finds oneself and the nature, purpose, and consequence of any act or transaction into which one proposes to enter.
Working memory is generally considered to have limited capacity. An early quantification of the capacity limit associated with short-term memory was the magical number seven suggested by Miller in 1956.