test-drb September 2001

test-drb@ccmp.vtda.org

256 participants
661 discussions

Classic Computers vs. Classic Computingt

by dittman＠dittman.net

> >> PIII still cant emulate the keyboard layout of a Vt100 or VT220 worth > >> poop. > > > >The PIII will emulate the keyboard layout of a VT220 if you use an LK461 > >keyboard. > > > Thats one solution. The other is a real VT{100|125|330|340} or H19 since > I do have them and prefer the feel of the keyboards and their respective > layouts. The LK461 has the same feel and layout as the LK201 used on the VT-330 and VT-340. -- Eric Dittman dittman(a)dittman.net Check out the DEC Ethusiasts Club at http://www.dittman.net/

22 years, 10 months

Mac Plus as a webserver...

by DAW＠yalepress3.unipress.yale.edu

! >Properly known as the 'Macintosh SE FDHD'. Yep, I got one of ! >these, running ! >OS 6.0.7, 50MB HDD, and 4MB RAM... ! ! I've got both kinds, one of which which is equipped with a ! 3Com Ethernet card. ! Unfortunately, 3Com seem to have forgotten all about making ! such a beast, and ! have even managed to reuse its model number on some PCMCIA card. =/ 3Com? I didn't know that they believed in Macintosh! ! >Yeah, the SE/30 is a 68030, 16MHz; with 68882 FPU and 0.5K ! >of L1 cache! Have ! >two of these, OS 7.1 and 7.0.1... ! ! Me too, but shouldn't that be a 68881? My info is taken from the Apple Spec Database, and that's what they wrote... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

22 years, 10 months

Anyone want an 11/750 & 11/730 out of New Jersey?

by fmc＠reanimators.org

Bob Shannon <bshannon(a)tiac.net> wrote: > Can you tell me anything about the HP3000/48? Physically, it's the size and almost the shape of a desk, meaning there's a woodgrain top and it can double as the console table. However, what's under the desk is the processor, memory, I/O interface cards, and power supply, which makes the whole lot kind of heavy. Oh yes, and if you use it as the console table, look down by your right knee for a power switch. Think about "right knee" and "power switch" a bit, and then go find something to keep them safe from each other. This will be faithful to contemporary practice; I've seen cardboard taped over the switch, and also seen those magnetic covers used by telco guys to cover mated 50-pin jacks (and stick them to a nearby steel desk, cabinet, or radiator) in office settings. -Frank McConnell

22 years, 10 months

DEC Keyboards (was: Re: Classic Computers vs. Classic)

by healyzh＠aracnet.com

> I wonder if the mushiness of the LK201 was a response to complaints that > the VT100 keyboard was a little too heavy at times. As a VT100 keyboard > aged the keys seem to develop little "catches" that made some keys more > difficult to depress. I'm guessing it's more the type keyswitches they bought, or did they outsource the entire keyboard? > A VT2x0/VT3x0/VT4x0/VT5xx can emulate a VT100, so use an emulated VT100 > with an emulated PDP-10. :-) I'm already doing that with a VT420 :^) Zane

22 years, 10 months

Classic Computers vs. Classic Computing

by pete＠dunnington.u-net.com

On Sep 14, 8:18, Jonathan Engdahl wrote: > An idea that I've been thinking about is the re-implementation of a classic > architecture (for me, probably a PDP-11) using entirely modern hardware. [...] > Another approach would be to view a Wintel > PC as a microcoded platform, and reimplement the PDP-11 on that hardware. > The microcode would be written in tightly crafted Pentium code. The machine > would bootstrap itself by loading the microcode from a special partition on > the hard drive. Why not burn it into (EP)ROM? 64K for the opcode jump table fits in a 27512, you maybe want about the same again for the code, and that would fit in some devices used for BIOS ROMs these days. Or put it on a SIMM or DIMM. -- Pete Peter Turnbull Network Manager University of York

22 years, 10 months

Cromemco 16FDC and IMSAI front panel

by ajp166＠bellatlantic.net

I'd have to see the schematics but I'd bet a timing difference or a conflict on a bus line usage. Allison -----Original Message----- From: Bill Sudbrink <bills(a)adrenaline.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, September 14, 2001 3:31 PM Subject: Cromemco 16FDC and IMSAI front panel >I brought this up some time ago, but never >got a satisfactory answer... > >When I use the above combination (regardless >of CPU board), while the system in general >works fine, the deposit/examine functionality >of the front panel stops working. Somebody >said they knew of a fix, but then never posted >anything else. I've looked at the schematics >(I have them for both items) and can't for the >life of me see anything that would conflict. > >Any help greatly appreciated. >

22 years, 10 months

Why is this so slow?

by ajp166＠bellatlantic.net

>From: "David Woyciesjes" <DAW(a)yalepress3.unipress.yale.edu> >To: <classiccmp(a)classiccmp.org> >Sent: Friday, September 14, 2001 9:06 AM >Subject: Why is this so slow? > > >> Does anyone have any idea why it takes upwards of 15-20 minutes >> (seems longer sometimes) for my postings to this list to get sent back out? Fire your ISP or find out why they use a string for a link. Allison

22 years, 10 months

Classic Computers vs. Classic Computing

by ajp166＠bellatlantic.net

From: Eric J. Korpela <korpela(a)ssl.berkeley.edu> >In the case of CP/M machines, running an emulator on a modern machine with >a decent OS greatly improves the development environment. I find myself >developing software on my PIII in a native editor, compiling/assembling with >MyZ80, and transfering it to the CP/M machines for use there. (Not that I do >a lot of CP/M development.) I like to and MyZ80 allows it to be more portable than my S100 crate or the Kaypro. Then again, my AmproLB system with 45mb disk is far smaller than most PCs. Allison

22 years, 10 months

[Donna.Deleon@COMPAQ.com: Urgent Vax 7800]

by cmcmanis＠netapp.com

Maybe the Pentagon is going to use VAX 7800's in their retaliatory strike for the WTC attacks. They are certainly as heavy as DU rounds :) Seriously though, a couple of things have come to light in the aftermath of this event: 1) VAXen are so reliable that several people keep them in production envirionments even today. 2) When you destroy a facility at large as the WTC and Pentagon off site backups don't help if they only system of capable of running your backups gets destroyed as well. Only the very serious disaster recovery plans consider the case that the entire datacenter is destroyed. At 01:50 PM 1/6/80, you wrote: >Area code 719? THAT'S NEWFOUNDLAND! SOMETHING IS UP!

22 years, 10 months

Classic Computers vs. Classic Computing

by DAW＠yalepress3.unipress.yale.edu

! ...In a recent thread, Tony Duell expressed a lack of interest in the ! emulators and simulators of old iron that are now circulating. His ! reasons centered around his love of hardware. From my perspective, ! it appears that for Tony, the experience of computing cannot be ! separated from the experiencing of the computer.... ! ! ...I'm not sure how many of you have ever thought about this; but ! now that I've broached the subject, whaddy'all think? I dunno about splitting the list. Even my interest is in the hardware side, like Tony, I'm sure there are many here that go both ways. And there will be new guys, that are unsure about thier preference, and seeing discussions about both sides in one place here, will definitely be helpful to them... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

22 years, 10 months

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test-drb September 2001