No footage, manual or ROM file exists as of currently. As more information becomes available, the assumed information will be corrected unless they are actually correct. Various information regarding these early versions are assumed based on copyright dates, incomplete documents and overall behaviour and look of these BIOSes. Notice: Not much information is known about very early AMIBIOS versions (pre-AMIBIOS Plus) due to lack of photos, ROM files and documents. American Megatrends then bought AMIBIOS from Access Methods in 1986.Īll versions made before AMIBIOS Plus were first released by Access Methods, although some later cores of these versions (ones released after the purchase) had American Megatrends copyright as the updated cores were released by them. It then got renamed to American Megatrends Inc. Same year, Access Methods' owners (Subramonian Shankar and Pat Sarma) found a new company from the funds of Access Methods, called Quintessential Consultants Inc. AMIBIOS has been mostly replaced by Aptio, the EFI/UEFI firmware developed by AMI.Īccess Methods Inc. While AMIBIOS is still in use on some industrial legacy machines to this day, it is no longer in use for most personal computers since early-2010s due to UEFI's increasing popularity. Earliest known release of AMIBIOS is from 1985. AMIBIOS is a Personal Computer BIOS developed by AMI (American Megatrends), which bought off it's rights from Access Methods Inc.
