Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!gatech!mailer.cc.fsu.edu!uflorida!SORROW@MAPLE.CIRCA.UFL.EDU From: sorrow@oak.circa.ufl.edu Newsgroups: comp.os.msdos.programmer Subject: Re: 8088 vs 8086 Message-ID: <0094A75D.9E49A240@MAPLE.CIRCA.UFL.EDU> Date: 21 Jun 91 18:35:08 GMT References: <1991Jun21.030948.10951@cs.mcgill.ca> Sender: news@uflorida.cis.ufl.EDU Reply-To: sorrow@oak.circa.ufl.edu Organization: University of Florida CIRCA VAX Cluster Lines: 29 Well, here is the Intel family as far as I can discern: Intel 8086: 16-bit processing, 16-bit data path Intel 8088: Developed based on 8086. 16-bit data path was considered too expensive, thus we have a 16/8-bit system. Intel 80188: Sames as 8088, but a bit faster since some offboard components were moved onto the chip itself (don't know which). Intel 80186: 8086 equivalent of 80188 Intel 80286: 16/16 processor, however supported up to 16MB of addressable RAM and had a protected mode. Intel 80386: 32/32 processor, however early implementations restricted the 32-bit protected mode due to some bugs. 32-bit data path not supported on ISA bus machines. Supports up to 4GB of RAM and has a built in ability to emulate virtual 8086 machines (why the 8086, I don't know -- possible because it is a closer analogy to the 80386 than the 8088). Intel 80386SX: 32/16 processor. Considered a compromise on price and performance. Intel 80486: 32/32 (I think) with on board FPU and 8k cache. Intel 80486SX: 32/32 (Again, I think) with on board FPU disabled. /* Brian Hook -- MS-DOS Programmer for Contract ----------------------------------------------------------------- "Seamus, that's my dog...I saw her today at the reception...sorry, sixTEEN inches....better save the women and children first...but this one goes to 11! ..anymore of that plutonium nyborg?....there can be only ONE!....like a finger pointing to the moon....ease the seat back...one day closer to death */