What iwould be the best used mac to buy

i looking mac school going change hard dive , upgrade memory mac easiest with?

 

all macbooks , unibody macbook pros upgradeable hdd or ssd , more ram:

macbook, macbook pro: replacing hard disk drive, transferring data new hdd​

how format new hdd/ssd install mac os x or make bootable copy onto​

upgrading ram in macbooks , macbook pros​

mac best, entirely depend on computational needs. best subjective, no objective conclusion can had in regard.

 

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