ECS
Extended chip set is the name used for the extended version of the Amiga computer's original chipset (OCS). It came bundled with the A500plus, A600 and A3000 computers.
ECS included the improved Super Agnus (with support for 2 MB of CHIP RAM) and Super Denise (with support for Super-HiRes graphics modes) chips.
It was followed by the AGA chipset.
Elitegroup Computer Systems is a Taiwan-based electronics firm. It is among the biggest PC motherboard manufacturers in the world.