AT VS 3B1
Larry Taborek
larry at macom1.UUCP
Mon Apr 17 22:10:12 AEST 1989
>From article <670 at ultb.UUCP>, by thw9759 at ultb.UUCP (T.H. White):
>
> Which is better, an AT&T 3B1 or a PC/AT clone?
>
> - a 3B1 is a real 32 bit machine has demand paging capability
> - a 3B1 runs UNIX 5.2 (a real unix) which runs GNU
> - a 3B1 costs a lot to repair and often times you can't repair
> - an AT runs Xenix, DOS, you name it, it runs it.
> - an AT is a 16 bit machine with no demand paging capability
> - can fix any part in an AT for around $200 or less
>
>
> What other differences are there? Which is better???
I'd take the PC/AT clone. Today, PC/AT clones can include 386
machines. With 386 PC's, you get a 3B1's 32 bit, you can get
5.2 with demand paging (again a real unix), AND an unsegmented
mmachine. In short, if you were to go with a 386PC you would
have all of the advantages above of a PC and all of the
advantages that you give to the 3B1.
I have been looking through the AIM Benchmark Reports and they
rate a AT&T 3B2/400 (considerably more powerfull then the 3B1) at
76% of a VAX 780, and able to run 9 users. They in turn rate a
Compaq DP 386 at 139% of a VAX 780, and able to run 16 users.
It's MY belief that a 386 machine is a much better buy then a
3B1, and if you pick up a magazine like Computer-Shopper you can
probably get a 16MZ PC/AT/386 clone for about $1000.00. By the
way the Compaq DP rated above was their 160MZ model. Their 20MZ model
was even more impressive.
--
Larry Taborek ..!uunet!grebyn!macom1!larry Centel Federal Systems
larry at macom1.UUCP 11400 Commerce Park Drive
Reston, VA 22091-1506
703-758-7000
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