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From: boquist@cs.chalmers.se (Urban Boquist)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: What is A20 ?
Keywords: A20
Message-ID: <boquist.674925780@animal>
Date: 22 May 91 15:23:00 GMT
Organization: Dept. of CS, Chalmers, Sweden
Lines: 14


I have a 386DX and when I boot I get a message saying
something like 'A20 handler active'.

I can turn it on or off in the setup, but what is it ?

I'm more of a software person, so if you please could
explain a bit...

Thanks,
  /Urban

--
boquist@cs.chalmers.se