jpdres14@usl-pc.UUCP (Collett Donald L) (02/25/88)
I am considering purchasing a new computer within the next six months. Can anyone tell me about or give me advice on AT&T's 3B(1/2/5)? How many users can they run? How's the security? How fast are they? Do they all run MsDos subprocesses? What largest size hard disk will work with them? I'm also interested in that Telebit Trailblazer plus. Right now, I am trying to decide between a 3Bx or a 80386 (Microport-Unix). Thanks in advance for any advise. Don Collett jpdres14@usl-pc.USL ut-sally!usl-pc!jpdres14
eric@magic4.UUCP (Eric Kozowski) (03/03/88)
In article <953@usl-pc.UUCP>, jpdres14@usl-pc.UUCP (Collett Donald L) writes: > > I am considering purchasing a new computer within the next six months. Can > anyone tell me about or give me advice on AT&T's 3B(1/2/5)? How many users > can they run? How's the security? How fast are they? Do they all run MsDos > subprocesses? What largest size hard disk will work with them? > First off, the 3B1 is a 68020 machine (not sure of the clock speed). It can support up to about 4 users. This is the only one that you can run MeSsy-DOS as a subprocess. The 3B2 is a large line. There is the 3B2/300, 3B2/310, 3B2/400, 3B2/500, 3B2/600. The /300 supports around 10 users (light users) and can have upto ~300M of disk. The /600 can support almost 100 users and have upto ~2G of disk. The rest are somewhere in the middle. The 3B5 is a large machine, and from what it sounds like, it is bigger than you need. Another machine you might consider is the 6386. It is a 80386 based machine that runs UNIX, MeSsy-DOS, or both. I'm not quite sure of the specs, since it is new, but it is FAST. Also, UNIX for it uses the `386 in non-protected mode, unlike OS/2 on the IBM PS/2 line. It also supports multiple MeSsy-DOS functions under UNIX. I've used all of the above except the 6386 and the 3B2/500, and like them all. Also, the /500 and /600 use a SCSI bus that gives you almost limitless peripherials. I hope I helped. P.S. if anybody out there sees errors in the above PLEASE correct them. -- Eric Kozowski AT&T GBS Portland, Or || I've made enough money to buy (503)295-4250 2020 SW 4th Suite 500 97201 || Miami, but I pissed it away UUCP: ...!tektronix!tessi!bucket!magic4!eric || so fast ... All of the above opinions are mine || -- Jimmy Buffet
wilkes@mips.COM (John Wilkes) (03/05/88)
In article <164@magic4.UUCP> eric@magic4.UUCP (Eric Kozowski) writes: > >First off, the 3B1 is a 68020 machine (not sure of the clock speed). It can >support up to about 4 users. The 3B1 is a 10MHz 68010 (not 020) with a custom MMU. It is a discontinued product, but you can still find them if you look. Check out the February issues of Unix World. There is an advertisement on p.30 for an outfit in California that still has some (Technology Resource Center, L.A.) and on p.83 there's an ad for an outfit in Georgia that has some (Digital Data Systems, Marietta). I know nothing else about either one of these companies. you can expect to pay a little over $2K for a fully configured 3B1 with Unix ans the development set. I have a 3B1 (purchased locally last September) and I am very pleased with it. To run MeSsDOS, you must add a 8088 (?) coprocessor card to the 3B1. I have never felt the need to do this. :-) -- -- @work: -- {decwrl,ames,pyramid,prls}!mips!wilkes -- OR, for those of great faith: -- wilkes@mips.com
farren@gethen.UUCP (Michael J. Farren) (03/07/88)
In article <164@magic4.UUCP> eric@magic4.UUCP (Eric Kozowski) writes: >First off, the 3B1 is a 68020 machine (not sure of the clock speed). It can >support up to about 4 users. This is the only one that you can run MeSsy-DOS >as a subprocess. The 3b1 uses a 68010 (at 10 MHz), NOT a 68020. It can, indeed, run MS-DOS, but only if you buy a rather expensive coprocessor board which is, in essence, an MS-DOS computer on a board. >Also, UNIX for [the 6386] uses the `386 in non-protected mode, unlike >OS/2 on the IBM PS/2 line. OS/2 is a '286 operating system, not a '386 system. Comparisons between OS/2 and a true '386 native Unix aren't really fair. But then, I suppose, life isn't fair. -- Michael J. Farren | "INVESTIGATE your point of view, don't just {ucbvax, uunet, hoptoad}! | dogmatize it! Reflect on it and re-evaluate unisoft!gethen!farren | it. You may want to change your mind someday." gethen!farren@lll-winken.llnl.gov ----- Tom Reingold, from alt.flame
rkh@mtune.ATT.COM (964[jak]-Robert Halloran) (03/07/88)
In article <164@magic4.UUCP> eric@magic4.UUCP (Eric Kozowski) writes: >In article <953@usl-pc.UUCP>, jpdres14@usl-pc.UUCP (Collett Donald L) writes: >> I am considering purchasing a new computer within the next six months. Can >> anyone tell me about or give me advice on AT&T's 3B(1/2/5)? How many users >> can they run? How's the security? How fast are they? Do they all run MsDos >> subprocesses? What largest size hard disk will work with them? > >First off, the 3B1 is a 68020 machine (not sure of the clock speed). It can >support up to about 4 users. This is the only one that you can run MeSsy-DOS >as a subprocess. ......... > >P.S. if anybody out there sees errors in the above PLEASE correct them. >-- >Eric Kozowski AT&T GBS Portland, Or || I've made enough money to buy >(503)295-4250 2020 SW 4th Suite 500 97201 || Miami, but I pissed it away >UUCP: ...!tektronix!tessi!bucket!magic4!eric || so fast ... >All of the above opinions are mine || -- Jimmy Buffet The 3B1/7300 uses a 68010, NOT a 68020, clocked at 10 MHz. Running MS-DOS requires an 8086 co-processor board, called the DOS-73 card, which lets the Unix-PC screen emulate a Hercules monographics display. Compatibility with programs bypassing the BIOS routines is uncertain, and must be checked on a per-program basis. Bob Halloran Distributed Programming Tools Group ========================================================================= UUCP: {ATT-ACC, rutgers}!mtune!rkh DDD: (201)957-6034 Internet: rkh@mtune.ATT.COM USPS: AT&T DSG, 200 Laurel Ave Rm 3G-314 Middletown NJ 07748 Disclaimer: If you believe I'm speaking for anyone but myself, you're sadly mistaken. Quote: "Good morning, the Russians still beating the pants off us in space?" -- Opus to Oliver, "Bloom County" =========================================================================
bamford@ihlpg.ATT.COM (Harold E. Bamford) (03/07/88)
In article <164@magic4.UUCP> eric@magic4.UUCP (Eric Kozowski) writes: >First off, the 3B1 is a 68020 machine ... Close. It uses a 68010 processor, not a 68020. I wish it were true; the 68020 supports long arithmetic instructions whereas functions must be used with the 68010. sigh. -- Harold Bamford, AT&T Bell Labs IHP 2F-524 (312) 416-7397 ihnp4!ihlpg!bamford
rjd@occrsh.ATT.COM (03/09/88)
>/* Written 6:06 pm Mar 2, 1988 by eric@magic4.UUCP >..... >3B2/400, 3B2/500, 3B2/600. The /300 supports around 10 users (light users) >and can have upto ~300M of disk. The /600 can support almost 100 users and >have upto ~2G of disk. The rest are somewhere in the middle. The 3B5 is >a large machine, and from what it sounds like, it is bigger than you need. Corrections, of a sort: The /310 (replacement for the 300) comes with a minimum of 30 MB formatted disk internal, or you can get the 72MB formatted internal disk. With the addition of the SCSI subsystem, you can conceivably expand this, using AT&T add-ons, to a total of 56 300 MB disks, for a total of 16.8 Gb mass disk storage. [two SCSI Host adapters, each hosting seven disk controllers, each controlling four disks ]. Yeah, a bit absurd, yet you CAN do it. RAM memory is a maximum of 4 Megabytes, 2 MB is stock for some, 1 MB is stock for others. The /400 comes with four different stock internal disk configurations, based on the four combinations you can make with one or two, 30 MB or 72 MB disks (not mixing disk sizes). The addition of the SCSI bus allows the same expansion as the /310. Memory size options are the same as the 310. The model 400 will allow eleven additional option card slots (the first slot taken by the cartridge tape drive controller, whether it be the 23 MB old style or the SCSI 60 MB controller), where the model 310 only has four option slots. The model 500 has six option slots (first of the seven taken by the SCSI host adapter for the integral disk, yet you can hook another six controllers onto this HA), from four to eight MB of RAM, and integral disk at 147 MB (expandable as with the 310 or 400). The model 600 has eleven option slots (first of the twelve taken by the SCSI host adapter for the integral disks, yet you can hook another six controllers onto this HA), from four to sixteen MB of RAM, and integral disk at 294 MB (expandable as with the 310 or 400). The model 600 also comes with a virtual instruction cache board, and slots for other cards such as the co-processor board that will also fit into the 500. Randy
mjs@kaiser.UUCP (MJ Shannon) (03/09/88)
In article <753@gethen.uucp> farren@gethen.uucp (M. J. Farren) writes: >In article <164@magic4.UUCP> eric@magic4.UUCP (Eric Kozowski) writes: >>First off, the 3B1 is a 68020 machine (not sure of the clock speed). This >>is the only one that you can run MeSsy-DOS as a subprocess. > >The 3b1 uses a 68010 (at 10 MHz), NOT a 68020. It can, indeed, run MS-DOS, >but only if you buy a rather expensive coprocessor board which is, in >essence, an MS-DOS computer on a board. This is correct, as amended. The AT&T PC 6300 PLUS can also run a single MS-DOS subprocess under the UNIX System V Release 2 (Version 2 and Version 2.5). (The PC 6300 PLUS is almost an IBM-PC/AT clone; it differs in the hardware for the 16-bit bus, as it was designed before IBM announced the PC/AT.) >>Also, UNIX for [the 6386] uses the `386 in non-protected mode, unlike >>OS/2 on the IBM PS/2 line. > >OS/2 is a '286 operating system, not a '386 system. Correct, as far as it goes. To further clarify the state of the AT&T 6386: it runs the UNIX System V Release 3.1 in full 80386 protected mode (@ either 16MHz or 20 MHz), and has the capability of running multiple MS-DOSes as subprocesses to the UNIX system. This information is all stated extremely clearly in the advertising. I have first hand information on both machines: I worked on both projects (and am limited in just what I can say about any of AT&T's products, for what should be extremely obvious reasons). Eric, PLEASE get your facts straight before you make false claims against some company's products. Making such claims opens yourself up to slander/libel (I can never remember which is which) cases against you.... Mike, thanks for shedding some unbiased light on Eric (and the net at large). Marty Shannon AT&T Bell Labs Liberty Corners, NJ 201-580-5757
olapw@olgb1.oliv.co.uk (Tony Walton) (03/15/88)
In article <144800025@occrsh.ATT.COM>, rjd@occrsh.ATT.COM writes: > The /310 RAM memory is a maximum of 4 Megabytes > The /400 memory size options are the same as the 310. The RAM is expandable to 8Mb on the 3b2/400, using 4Mb cards available in the UK and an upgraded version of Unix SVR3.1. The cards will also work on a /310, but you need to cut a hole in the top of the case to fit them in :-) -- Tony Walton, OEM/VAR Division, British Olivetti Ltd., 154-160 Upper Richmond Rd, LONDON, SW15 2FN. Tel: (+44) 1 789 6699 Telefax: (+44) 1 785 6670 Telex:27258 Uucp : { ukc!uel | mcvax!olnl1 | ihnp4!cuuxb | iconet | olhqma } !olgb1!olapw olapw@olgb1.oliv.co.uk