to prepare your old Mac for its new role. The best Macs for the job are the Mac mini or an old MacBook, as neither consume large amounts of power, so can be left running 24/7 for always–on access. Start by powering up your Mac and choose “About this Mac” from the Apple menu to review its current specs. See “5 best hardware add–ons” opposite for upgrades to consider — to see which upgrade guides are available and whether upgrading the RAM and/or boot drive are realistic options.
