Tufts University recommends Dell and Apple as preferred vendors for desktop and laptop computers.
For Dell computers, the recommended model lines are the Latitude for laptops and the Optiplex for desktops.
Dell Optiplex 9020 Small Form Factor
Dell Latitude E6520 – Powerful desktop replacement
Dell Latitude E6430 – Balance of performance and Mobility
Dell Latitude E6320
Dell Latitude E7240 – Ultrabook
For Apple computers, the recommended model lines are the MacBook Pro for laptops and the MacMini and Mac Pro for desktops:
For pre-configured versions of the most popular models, please see the following links