Adventures with the Nixdorf 8870 Mini-Computer
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3/6/2014

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It's been a while since I've done anything with either this website or my 8870's - something that I'm eager to change.

As time allows, I've been slowly collecting documentation, experimenting and just trying to get re-acquainted with how things work. I'm amazed at how much I've forgotten over the years.

So currently, this is the state of play.

I've actually got three 8870 M25 chassis. One is in my workshop and running fine. The other two are in the garage. With one of them at least, I've no reason to assume that if I added plates, PSU and a disk, wouldn't spring back to life, though it needs a darn good clean before I attempt that.

The other chassis is in a real sorry state. I think it's electrically sound but the plastic outer shell is in a terrible state. It looks like it's either been dropped or somebody backed a lorry into it.

I've removed all the "good" stuff from both the above chassis and I've tested all these items one by one in my working machine and so far pretty much everything seems to be working ok. This means that I've got spare disk drives, CPUs, ALMs, PSUs and disk controllers and if I had serviceable chassis I could built another machine if needed.

Still only got the one working DAP4 and no working DAP spare parts which is a worry.

I've got copies of the NIROS 3.3 and 5.0 manuals, and a BASIC 7.0 manual plus some other assorted operator and technical manuals - all in German unfortunately for me though I did have had the NIROS 3.3 manual translated to English.

I've one working ND11 printer, a couple of new ribbons and a SAS cable (printer to DAP). I've got another ND11 that's in the garage right now but I've not tested it.

I've a working Niros 7.0/03 operating system (German again unfortunately) but at least it didn't have User Administration installed, and I eventually managed to find somebody who knew the system password - my memory is terrible.

Interestingly, the first system that I obtained was running Niros EX but the disk was corrupted and the system eventually failed - it was deleting more and more files every time it booted which was a real shame. However, the curious thing was that it had a 1537 CPU fitted, not the latter 1559 that we were always told was a pre-requisite for Niros EX.

My current plan is to harvest the back planes and everything else removable from the damaged chassis, and I'll probably sell the other one as just an empty chassis as I'm not letting any of my spare parts go.


Anyway, that's the situation currently


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I can’t translate German… and neither can Google...

16/2/2011

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Actually, that’s not fair. Google can translate German, it’s just not very good at translating technical German.

I have two 8870 manuals that are key to understanding exactly how the 8870 works under the hood as it were. The NIROS manual (version 3.3 for now), and the Field Engineering Manual. The problem is they are in German, and my German is rather limited.

My partner Heike, is German by birth, so I printed out the NIROS 3.3 manual, sat her and the manual down and said, “you translate it, and I’ll key the English into my laptop… should only take a couple of hours”. It took around thirty minutes to get a half decent translation of a single paragraph. The problem is Heike doesn’t know technical German and her translations were too literal. This is exactly what Google’s language tools did. I decided I was going to need help.

I went to the Internet huning around for an independent or freelancer who would take pity on my, and translate my 160ish pages for the price of a bag of peanuts, but I didn’t have much success.

What I did stumble across was a website Freelancer.co.uk and the concept is rather simple. You create a project that defines what you want doing, your specify a budget range and let people ask additional questions or bid to do the work.

So, I created a project, uploaded a low-ish quality scan of the manual for bidders to see, set the project bidding stage to run for 10 days, and sat back really expecting for nobody to reply. Within 10 minutes I’d had several offers ranging from the peanuts I wanted to pay, up to £250 (which was my maximum). I also had one chap ask if I was serious as he charges £30 per page; odd really, I didn't force him to bid. The next day I had a look and had around 15 bids for the job. The site on-line help advises you not to just decide on price, which makes sense but what DO you use to help you decide.

I remembered than when Heike and I tried to translate a very simple passage we got into a terrible mess. So, I sent the four lines of German to my friend VAXMAN and asked for his translation. I then picked four bidders based purely on gut feeling, and if the English they used in messages they had sent me, appeared half decent, and asked if they would translate the four lines for me.

After 48 hours, only one person replied, and she replied almost instantly and her translation was pretty accurate; well,good enough for me anyway.

So, Ioana in Romania is currently in the middle of translating my NIROS 3.3 manual. We’ve agreed a price, and the work will be divided into five equal parts. I get to see the quality of her work, and she gets paid after each part. Stage payments are all handled by the Freelancer website so it really is quite simple. If she does a good job, I’ve got another couple of thousand pages of manuals for her to translate as well. Lucky girl.
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    I'm a software developer, an engineer and I love vintage computers, but the 8870 has a very special place in my heart.

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