Re: what can i do with a 486?

[ Available lists | Index of freebsd-chat | Month of Apr 2007 | Week of 9 Apr 2007 | Raw email | View thread | Wrap long lines | Reply | Tag ]
From
Dag-Erling Smørgrav <des@des.no>
Date
9 Apr 2007 16:38:17
Subject
Re: what can i do with a 486?
Message-ID
868xd1ec5p.fsf@dwp.des.no

References to

[ Hide this part ]
"Gray, David W" <David.W.Gray@nielsen.com> writes:
> Is that a 48*6* or a 48*7*??? You MUST HAVE a floating point
> emulator if you don't have a '487 (also known as a '486 overdrive),
> or no boot.

The 487 was not a "486 overdrive", but an add-on FP unit for the 486SX
(which shipped with the built-in FP unit physically disabled). The
"overdrive" was Pentium chip that fit in a 486 socket, and later also
early Pentium sockets (so you could fit a 120 MHz Pentium Overdrive on
a 60 MHz board, similar to the 486 DX2 which ran at twice the speed of
the motherboard).

DES
--
Dag-Erling Smrgrav - des@des.no


Elapsed time: 0.170 seconds