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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!mnemosyne.cs.du.edu!nyx!nwickham
- From: nwickham@nyx.cs.du.edu (Neal Wickham)
- Subject: Bunch of PC questions?
- Message-ID: <1992Dec25.185547.11983@mnemosyne.cs.du.edu>
- X-Disclaimer: Nyx is a public access Unix system run by the University
- of Denver for the Denver community. The University has neither
- control over nor responsibility for the opinions of users.
- Sender: usenet@mnemosyne.cs.du.edu (netnews admin account)
- Reply-To: nwickham@nyx.UUCP (Neal Wickham)
- Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
- References: <1992Dec23.223142.3167@newshost.lanl.gov> <4c20VB1w165w@tsoft.net> <1992Dec24.115058@cs.utwente.nl>
- Date: Fri, 25 Dec 92 18:55:47 GMT
- Lines: 37
-
-
- I think I am about to buy a PC. I just read a book about the PS/2
- series from IBM and that answered several questions but raised several
- others. So, I'm just going to throw a bunch of questions out here in
- .hardware to see if anyone (just for the heck of it) will answer them.
-
- Is the EISA bus and Microchannel the same thing? They are both 32-bit
- correct? If not the same, which is better?
-
- ISA is just the old AT 16-bit bus, right? ...although I know there are
- some enhancements in newer systems.
-
- I just read some perfomance comparison between several 486 systems, some
- with EISA and some with ISA but the "disk" rating or the "memory" rating
- seemed to be unaffected by the fact that the system was ISA or EISA.
- Why is that? What does the EISA bus have a big effect on? I thought
- anything going down the EISA bus would go twice or more as fast?
-
- Are 386 systems usually socketed for the math co-processor?
-
- How do you rate video card speed. The resolution and # of colors is
- simple enough but I understand that the gfx speed is very important to
- overall performance? How do you tell fast cards from slow ones?
-
-
- Thanks,
-
-
- NCW
-
- PS
-
- Oh... and here's the one that's been bugging me for a long time. I know
- that the 386 is a 32-bit chip internally and externally and that the 386sx
- is 32 internally and 16 externally, but if you stick them both on an ISA
- 16-bit bus, why is the 386 so much faster than the 386sx?
-
-