mem , hdd , screed , dvd drive are all easily accessible and removable .####[['mem', 'MEMORY#USABILITY', 'positive'], ['mem', 'MEMORY#USABILITY', 'positive'], ['hdd', 'HARD_DISC#USABILITY', 'positive'], ['hdd', 'HARD_DISC#USABILITY', 'positive'], ['screed', 'DISPLAY#USABILITY', 'positive'], ['screed', 'DISPLAY#USABILITY', 'positive'], ['dvd drive', 'OPTICAL_DRIVES#USABILITY', 'positive'], ['dvd drive', 'OPTICAL_DRIVES#USABILITY', 'positive']]