Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!rutgers!mcnc!rti!bcw From: bcw@rti.rti.org (Bruce Wright) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: Intel Processors Summary: Not transistors ... Keywords: i486 Message-ID: <4005@rtifs1.UUCP> Date: 5 Aug 90 10:56:32 GMT References: <1990Jul30.143353.25913@usenet@kadsma> <56214@microsoft.UUCP> Distribution: na Organization: Research Triangle Institute, RTP, NC Lines: 18 In article <56214@microsoft.UUCP>, t-dona@microsoft.UUCP (Don AINGWORTH) writes: > In article <1990Jul30.143353.25913@usenet@kadsma> pajerek@kadsma.UUCP (Donald Pajerek) writes: > >Why is the 80486 chip always referred to as the i486? > >Is this some sort of protocol that Intel wants the world to observe? > > I had the same question awhile ago, and when I asked someone he said it had > to do with the million + chips: that when an intel had in i before its > number, that meant that it had a million transistors, or whatever it is > that they hade over a million of. It's certainly not transistors - the 386 only has about 275k transistors, and the earlier 80x86 chips obviously have fewer. I suspect that it is short for iAPX, a term they use on more than just the 80x86 line (like the i860), and seems to designate a processor architecture. Bruce C. Wright