Re: [tlug] Flash Memory History & BIOS Durability (or lack thereof)

[Edward Middleton <edward.middleton@example.com>]

On 04/29/2012 11:52 AM, Lyle H Saxon wrote:
> On Sun, Apr 29, 2012 at 11:49 AM, Kalin KOZHUHAROV<me.kalin@example.com>  wrote:
> > PC XT (i8088 or i8086 based), PC AT (i80386, i80486), and some (not
> > sure if Pentums were counted as AT), had BIOS in ROM and no upgrades
> > meant erasing with UV and reprogramming with a ROM programmer.
> > CMOS has always been there AFAIR and there was always a battery to
> > keep at least the RTC.
>
> Okay.  Thanks!  I see I should have researched things a bit more before posting!

There was a bit of a controversy when flash roms were introduced because 
it meant you could potentially plant viruses in the BIOS and they would 
be pretty hard to detect & remove.  Obviously this wasn't possible with 
a EPROM[1].

Edward

1. Obviously the manufacturer could.