Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Bob Eager Newsgroups: comp.sys.ibm.pc.hardware.misc Subject: Re: Intel 8086 Date: 22 Oct 2015 19:52:23 GMT Lines: 17 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net u4I2Vf28YrOzXpzboPO9twDfcBw/WkVyBdm716HqiMCa+ouQMk Cancel-Lock: sha1:u1HL+Vo9YNfN0vb29hrx9ms6RRY= User-Agent: Pan/0.139 (Sexual Chocolate; GIT bf56508 git://git.gnome.org/pan2) Xref: csiph.com comp.sys.ibm.pc.hardware.misc:95 On Thu, 22 Oct 2015 11:42:47 -0700, JT wrote: > On Wednesday, October 21, 2015 at 6:24:41 PM UTC-4, Bob Eager wrote: >> On Wed, 21 Oct 2015 11:33:34 -0700, JT wrote: >> >> > Intel 8086 microprocessor was released in 1978. What device used the >> > 8086 before 8086 was chosen for IBM PC 5150 in 1981 ? >> >> The 8086 was not used for the IBM PC. It used the 8088 (same programmer >> architecture, but different bus width and pipeline size). > > You are right about 8088. I saw an AMD 8088 on the real IBM 5150 > motherboard. what device used 8088 before IBM??? I've had a look, and I don't know! It was an easy hardware upgrade from the 8080/8085 as the bus interface was similar (and the instruction set was designed to be very similar (well, a superset)),