Apple on Tuesday unveiled an update to its iMac line-up, adding Intel's Haswell processors to the all-in-one range. On the very same day, Apple released a firmware update for the new models. The update, which is an Extensible Firmware Interface update specifically for the late-2013 models Apple announced this week, brings the EFI to 2.1, and is said to fix an issue that can occur when a user attempts to install Windows 7 or Windows 8 using Boot Camp Assistant. According to Apple's update page on its website, if both an external optical drive and a USB thumb drive are connected to the iMac, it may cause a black screen to appear while installing Windows 7 or Windows 8 using Boot Camp Assistant. Apple also says that the update ens
