The designation signifies that this build was tailored for manufacturers to test hardware compatibility, such as Wi-Fi chips, screens, and touchpads, before finalizing the hardware.
: This was a period of rigorous testing for the "browser-as-OS" concept. Version 1.0.628 was part of the early builds that predated the first consumer Chromebooks from Samsung and Acer in mid-2011. Google Chrome OS Linux i686 1.0.628 OEM Beta x86
Google removes old recovery images. Modern systems and projects like MercuryWorkshop/chromeos-releases exist specifically to recover historical images from archives because "Google only makes the newest recovery images available". Finding a specific internal OEM Beta from 2010/2011 is a needle-in-a-haystack hunt. The designation signifies that this build was tailored