* Posts by Bitsminer

645 publicly visible posts • joined 13 Sep 2017

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AI cloud startup TensorWave bets AMD can beat Nvidia

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$1/hr/GPU

Let's do some math here:

There are 8000 hours in a year (give or take). Assumption #1: a 3-year payback is needed as the tech goes obsolete pretty quick. That's $24k to play with based on customers with long-term commitments.

Your biz needs at least 50% margin(*) else nobody will invest, so you have $12k to play with now.

Your electric, plant, other utilities is about maybe 30%.

Your actual capital cost (of the RAM + CPU + GPU + network + + +) is about maybe 40% assuming (assumption #4) you are paying some kind of premium for the tech.

You have to pay somebody, perhaps yourself, for hardware and software maintenance and support and that takes up the last 30%. This may seem high but you have to have lots of spares and separate labour pool to run it, so there is an interest cost, capital cost, and labour cost all separate from the capital pool used to buy the gadgets. Source: me and many years of data centre costing experience.

The implication is that a GPU+related CPU is only, based on my assumptions, about 40% of $12k or $4800. Sounds too cheap (**).

I'd like to meet their bankers. I have some ocean-front property in Arizona that needs refinancing....

(*) margin is defined as percent of revenue that exceeds your direct costs, so therefore omits all corporate stuff like CEO, management, finance costs, taxes, 2-inch carpeting, company cars, sales droids, marketing flunkies, senior corporate account executives, vice presidents of government influence, and all that. In the end you might have 20% profit at a corporate level. That also sounds too low.

(**) This is at the margins, where here marginal cost applies provided you are buying thousands of units. (And yes "margin" is a word that has too many overloaded meanings.)

OpenBSD 7.5 locks down with improved disk encryption support and syscall limitations

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Re: By default it creates multiple relatively small partitions...

So I see some valid comments here. I was not intending to be some kind of "gatekeeper" but if you want to believe that, go ahead.

Liam reviewed (twice) the default configuration result. He did _not_ review the documentation:

The installer will create a partitioning plan based on the size of your hard disk. While this will not be a perfect layout for all people, it provides a good starting point for figuring out what you need.

As some have already pointed out, custom partitioning is supported and, it seems, frequently used. Like, for example, by me:

$ df -h

Filesystem Size Used Avail Capacity Mounted on

/dev/wd0a 8.7G 6.8G 1.4G 83% /

/dev/wd0d 30.0G 24.6G 3.9G 87% /home

If at first you don't succeed, try, try again. Sure it's annoying after a lengthy download to find /usr/local is full. That is part of the learning curve.

My point was this: if you want an install to succeed the first time, use a big disk.

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By default it creates multiple relatively small partitions...

...and you can run out of disk space.

Sure, if you use a 16GB virtual disk or partition. See photo. Try your local computer store and ask them for a 16GB disk drive....the 2000-oughts called they offered one for $1000...

Try 50GB for virtual disk size and you can fit the source and even rebuild things if you are so inclined. Or use a real machine with that size or larger.

As always with OpenBSD, if you don't "get" it then you aren't the target audience.

MIT breakthrough means there's no material too weird for 3D printing

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...machines can 'learn' to adapt to new mediums...

And here I thought astrology and Tarot card readers were out of fashion....

GCC 14 dropping IA64 support is final nail in the coffin for Itanium architecture

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The SGI Altix line was originally on Itanium. The chief benefit was "single OS image", what we today call a multi-core computer, with any core count you could afford up to 512.

$WORK used it for the very large RAM and many-core (32 to 128 processors) that were otherwise unavailable. The SUSE and Redhat Linux of the day were not so efficient so only 2/3 of the processors could be used for the application, the rest had to be left for Linux to run the filesystem, memory etc etc.

As I recall our big complaint was the single-cycle delay in floating-point operations between the decode and operation. That's what one fellow said anyways; in a pipelined CPU I didn't see the issue. He had the PhD in computer architecture and I didn't.

FFTs were very good if you used the Intel libraries (not so much the SGI library) and the GCC/icc open-source versions sucked wind. Good thing FFT was only half our workload....

Cloudflare says it has automated empathy to avoid fixing flaky hardware too often

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LSI used to supply large drive arrays with fail-soft capabilities...

The user interface was some java-based app.

Whenever a (SATA) drive had some little hiccup, it was switched to "offline" mode.

To bring it back online, no kidding, you pressed the "Resurrect" button.

I wonder what their Buddhist customers thought?

Fujitsu to shutter operations in Republic of Ireland

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people who invested their lives in the company...

Obv didn't read the prospectus.

One rack. 120kW of compute. Taking a closer look at Nvidia's DGX GB200 NVL72 beast

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What's old is new again

All those little boxes with fat, fat cables connecting them...

Reminds me of SGI Altix 350 (the smaller Altix with up to 16 individual dual-cpu nodes with a big switch in the middle.) They had two very fat cables for each node.

Fun fact: a node was called a "brick" in an unfortunate coincidence of terminology.

Bigger Altix like the 3700BX2 used the same cables to interconnect multi-CPU blades in a larger chassis, with multiple chassis per rack.

The 64-processor BX2 ran about 20kW in one rack. if I recall correctly. Somewhere I have a screenshot of vi occupying 13GB on a 128GB machine...

We spent more time on the phone with SGI Minnesota negotiating power and grounding needs than we did with the salesman to buy the thing.

Euro-cloud consortium CISPE calls for investigation of Broadcom

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Software supply chains

They said "beware of bugs and exploits in your software supply chains."

They forgot to say "beware of exploits of your software supplier businesses."

VMware is a single-point-of-failure for many businesses and organizations. It's only now that they're beginning to understand that.

How to run an LLM on your PC, not in the cloud, in less than 10 minutes

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(bad) language models are good for education....

When you have to fact-check the results of a LLM query, then you are now searching the Internet for relevant facts to support or refute the meanderings of the machine.

And, as a resut, you learn.

(Assuming you know you have to fact-check it to begin with. And can avoid the deeper rabbit-holes you are bound to find.)

UK and US lack regulation to protect space tourists from cosmic ray dangers

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Re: Earthly dangers

The biggest Earthly danger I can foresee is the infestation of condo time-share sales droids at the spaceport.

'We had to educate Oracle about our contract,' CIO says after Big Red audit

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I had to educate management on the Oracle software...

Complementary to Nate, we had very assertive yet wrong management who insisted, decades before ChatGPT, that they knew what was what according to Oracle.

We were delivering turnkey systems to customers and needed EE due to Spatial. Oracle 8 (and 9 and 10) included spatial, trusting that you would pay Oracle for EE prices if you used it. (The features and software quality of spatial was, however, something else altogether...)

I had several complaints to our management about (a) why Oracle (b) again, why Oracle, and (c) when do we move to Postgres plus PostGIS for the spatial features.

Turns out they had only recognized the name, never mind the cost. PostGIS got serious, afaik, around the time Oracle 9 came out so we gradually moved ourselves and our customers to that.

Oracle's "development" license was, in fact, only a testing license. Whenever we asked what that really meant, their interpretation was that development activities were "production" and therefore license fees, plus annual maintenance fees at 15% or 20% of list price, were due for factory integration and test systems. Eventually management noticed this and accelerated the switch.

This was all for deliverable systems. Corporate IT had their own shitshow with Oracle audits. Think VMware.....oh my!

Dell exec reveals Nvidia has a 1,000-watt GPU in the works

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Big fans

While I will resist the obvious joke that 1kW servers should enroll in onlyfans....

Call me when the airflow reaches Mach 1...

Canada poutine more pressure on Google by expanding ad biz antitrust probe

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Endurance

Google has little to fear, except perhaps falling asleep during the investigation.

Or Pichai may retire first.

The Competition Bureau typically takes many years to investigate and prosecute frauds, anti-competitive actions or price fixing:

Canada bread price fixing (2001 through 2018): undetected until a whistleblower tipped them in 2015. Companies convicted and fines levied 2023.

"Business directories" fraud from 2012 through 2019. Charges laid 2021, conviction and fines 2023.

Price fixing and bid-rigging by firms shipping automobiles from Japan to Canada. First complaint in 2008, other complaints for 2011 and 2012. Conviction and fines levied 2023.

Snowflake share price falls after revenue forecasts dip below expectations

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Re: FCTLOT

In my former $LIFE I used to do reliability and availability calculations for government and big commercial clients.

You know, things like "meets 0.997 availability". "Repairable within 6 hours 95% of the time excluding unspared items." And so on.

After a couple of bad experiences, I always added a disclaimer to the design or calculation document: "This is a forecast not a promise."

The noise died down a little after that.

Palo Alto investor sues over 28% share tumble

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Re: Just... no

The stock market is the world's most open and accessible opinion survey.

To sue because the market's opinion doesn't match yours is just plain...stupid.

Sandvine put on America's export no-fly list after Egypt used network tech for spying

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Problematics

As noted by others, there are a few issues with picking on Sandvine.

The Citizen Lab report was published in 2018, and mentioned Francisco Partners as a Sandvine investor. They still are. Francisco is based in San Francisco, California, USA. They are not, afaik, under US sanctions.

Just about any packet processor can pick out an ip address and redirect http(s) traffic to an alternative site. Or a range of IP addresses and alternative sites. The Citizen Lab report explains this in detail. (Much of the malware downloaded by Egyptian-in-the-middle redirections was because the downloads sites used http not https, leaving doors wide open for abuse.)

Competitors mentioned in their report include BlueCoat, bought up by Symantec which was in turn bought out by ... wait for it ... Broadcom.

Another competitor is NSO group which has attracted it's own legal issues, mostly from the US.

Sandvine's products appear to be relabeled whitebox computers. It's pretty hard to see how a US sanction is going to affect them.

The question becomes: is any high-performance packet processor vendor going to be subject to similar sanctions depending on how their customers, perhaps secretly, use their products? Excepting Cisco of course...

FAA gives SpaceX a bunch of homework to do before Starship flies again

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...and a large number of engines that would probably not be very happy eating moon dust

These are rocket engines, not jet engines.

But dust is indeed a problem. On landing the rocket engines will be blowing a significant amount of dust into lunar orbit.

You can count on the fingers of no hands how many people will like that.

I expect the next major private mission will be a dust-proof parking lot. Parking: $1300 per hour. Half price on weekends.

VMware's end-user compute unit reportedly headed to private equity firm KKR

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$3.8 billion purchase price on $1 billion revenue?

One, or both, of those numbers is very wrong.

The purchase to revenue ratio is normally in the 10 to 15 range, and 20 or higher only sometimes.

For example, IBM paid $34 billion for RedHat whose 2019 revenue was $3.4 billion.

Work for you? Again? After you lied about the job and stole my stuff? No thanks

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The best boss I ever had lived and worked 3000km away and we only talked during the annual performance review.

Can't beat that.

Rice isn't nice for drying your iPhone, according to Apple

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Re: Refrigeration

as soon as you take your chilled toy out, condensation will form inside it and you are back to square one.

True this. But you can put the phone in an airtight Ziplock bag when you take it out of the fridge, and no condensation will happen while it warms up.

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Refrigeration

The driest place in your home is your fridge. So give your damp gadget an overnight chill. Seriously.

Just don't let it get near anyplace that it might freeze.

The successor to Research Unix was Plan 9 from Bell Labs

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Sounds more like Thomas Kuhn to me. One summary has it as:

Any replacement paradigm had better solve the majority of those [problems], or it will not be worth adopting in place of the existing paradigm.

https://plato.stanford.edu/ENTRIES/thomas-kuhn/

For example the issues with central mainframes were sufficient to motivate minicomputers and then, later, personal computers (PCs).

And so on.

Oxide reimagines private cloud as... a 2,500-pound blade server?

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Shades of SUN

In the early days, like the 1980s, Sun built servers that required 208VAC. Only the SF area supported that, the rest of the world was 220 or 240VAC. I think that's called parochial but correct me if I'm wrong.

When $WORK finally realized that, and put in a step-up transformer, the loud fan noise and irregular reboots stopped happening.

For Oxide to build a (customized) rack that is more than 2m high is....parochial. There are elevators that won't take such items even tilted and empty. The tallest Dell rack (48U) is 2273mm high. These guys have not done their homework. They haven't had to actually install such equipment in any variety of customer locations worldwide.

2.74m is just....dumb.

And putting just 15kW of CPU power into an oversized rack is....under whelming. There are higher power (and therefore faster) CPU and storage options that aren't physically unmanageable.

Air Canada must pay damages after chatbot lies to grieving passenger about discount

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The Air Canada Slogan...

"We're not happy until you're not happy."

Drowning in code: The ever-growing problem of ever-growing codebases

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Re: 10ms

s/10ms/100ms/ as I wasn't really thinking that hard about an actual number.

Dan Luu's data doesn't totally refute me but it is interesting. The machines above 100ms or so are generally pretty rare. Most are less than 100ms with a range of ages which supports my (revised) point.

It would be interesting to weight his table by numbers of units sold. Do slow-response machines have poor sales? And that Powerspec g machine....

Bitsminer Silver badge

10ms

because computers aren't getting much quicker, as it gets bigger, software is getting slower.

The sum of hardware and software on a PC is sufficiently fast (or slow) to support typing at speed. Human typing that is.

All they sold us was 10 millisecond response time, no matter how many gigahertz or gigabytes or megaSLOC were in the box.

It's been the same since 1981.

Mon Dieu! Nearly half the French population have data nabbed in massive breach

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Faraday "cage" is (almost) all you need

The car thieves use retransmission gadgets to widen the range of a key fob inside a house. Wrapping it in a metallic container like a biscuit tin helps a lot.

But there are also the CAN-bus hackers that take off a headlight to access the car electronics and unlock the car and start the engine.

The statistics are grim. About half of 45,000 cars stolen in 2023 in Ontario and Quebec were never recovered. Only about 1700 were intercepted at the ports of Montreal and Halifax.

There is a CBC TV report where they tour the used-car lots of Accra, find a stolen car complete with Canadian registration, phone up the owner back in Canada and tell him what he left behind in the glove box. Funny and sad at the same time.

https://www.youtube.com/watch?v=R0u1OWYdJrs

Cloudflare joins the 'we found ways to run our kit for longer' club

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Re: Do fund managers actually believe that this involves magic?

I wonder what alternative universe we are in when wage costs are capex.

A few years ago US Congress changed the wording for 26 U.S. Code § 174 to require capitalization of software development -- that is, software costs, any software costs, must amortized over 5 years. It takes effect this year.

Any software development, whether for sale or in-house use.

"Amortization" over 5 years means that only a notional cost calculated as 20% (20% = 1/5 for you millennials) of actual can be deducted from income as a cost of doing business. Next year, another 20% from this year plus the 20% from next year. And so on.

It means that if you broke even on your small-scale side-hustle (revenue minus costs = 0 on a cash basis) is considered as profitable (revenue minus 20% of costs = 80% of revenue is profit.) Now you owe lotsa taxes. (Non-software costs presumed to be zero in this simple example.)

That's not the web you're browsing, Microsoft. That's our data

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Coprolitic

A new word every day.

FBI confirms it issued remote kill command to blow out Volt Typhoon's botnet

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Re: Explain again to me

$WORK was buying/reselling a $15M steerable antenna with a custom-hardware custom-software controller based on an industrial version of Windows NT.

Of course no anti-virus or host-based firewalling was allowed. The operating system was 15 years out of date on a very new item.

So we planted a cisco soho router/firewall in front of it. We programmed it for router rules to suitably restrict the IP addresses and ports, and turned off the cisco "firewalling". And did network testing to prove compliance to the rules.

Because of course we didn't dare trust cisco software firewalls. The routers were EOLd about 2 years afterwards. So what, they're cheap.

Microsoft sheds some light on Russian email heist – and how to learn from Redmond's mistakes

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weak password

Despite all the flim-flam about "password spraying" it was basically a successful guess of the test account and password spelling.

So, what was the password?

JAXA releases photo of SLIM lander in lunar faceplant

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Pint

Independence Day

Sending a mission with a robot that can independently communicate with Earth is a masterstroke.

The history of failed landings on the moon and Mars suggests this was a backup plan for a backup plan.

Good choice!

Simon Willison interview: AI software still needs the human touch

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From stochastic parrot...

...to gullible intern on mushrooms.

The analogies just keep getting better.

Amid Broadcom's subscription push, VMware killed a SaaS product

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...will allow customers to extract more value...

s/customers/Broadcom/

Zuckerberg wants to build artificial general intelligence with 350K Nvidia H100 GPUs

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Re: AI

350,000 H100s is about $1 billion and the power consumption is about 400MW or more. Which is about $2 billion for your own personal hydroelectric dam. (Or maybe $6 billion.)

JPMorgan exec claims bank repels '45 billion' cyberattack attempts per day

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Banks and Money

Bank robber Willie Sutton, who, when asked by a reporter about why he stole from banks, answered: “Because that's where the money is.”

Patch now: Critical VMware, Atlassian flaws found

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another CVE metric?

Your comment brings to mind a very common metric in the chemicals and manufacturing industries.

"Days since a lost-time accident." Where "lost-time" means an employee required medical attention taking them away from work.

I guess Windows would be around 3 or 4 days. Atlassian a week.

While we fire the boss, can you lock him out of the network?

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Re: ...pith helmet...

Why, by posting pith porn. Obv.

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...pith helmet...

$WORK accidently hired a guy from California. Complete with beard, pith helmet, khaki shorts, leather jesus boots, and Valley Accent.

He was straight out of a Hollywood stereotype factory.

We soon discovered he spent too much time actually hacking websites and trolling very illegal porn sites instead of coding for R&D group.

It took entirely too much time to fire him.

Adios, dead zones: Starlink relays SMS in space for unmodified phones on Earth

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Pint

...our link budget closes...

I've worked with satellite link budgets before. Some of the numbers are crazy. Extremely low power received even with hundreds of watts transmitted.

But receiving cell phone signal from orbit? Must be getting microwatts per square kiloparsec.

A pint for the developers!

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Is it just SMS or is Mobile Data included?

I'd hate to see a bill with roaming data added (at dollars per kilobyte!!) just because I was away from the coverage area and neglected to turn off Mobile Data.

New year, new updates for security holes in Windows, Adobe, Android and more

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W11 video playback is screwed up

On my machine at least. The left third of the screen runs at a different "contrast" setting when full screen. But if I move the mouse it goes back to normal. For a second. But if I turn on subtitles the screen flickers with every new subtitle and stays normal for a second. If I don't run fullscreen it works-ish sort of.

ffplay is (still) flawless.

Motorola loses appeal to kill price cap on UK Airwave emergency services contract

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Re: Let me get this straight...

...hire a company (not Motorola) to design and build it, but government owns the design...

That should be normal practice, if the government is paying for a new design. If the government legal team is doing their.....

Oh. Never mind.

HPE said to be moving in on $13B deal for Juniper Networks

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...surpassing a $1 billion run rate on an annualized basis...

No actual annual revenue was reported here, just an extrapolation. By the company, of course, not El Reg.

Doesn't anybody have any facts anymore?

Jesus Christ on a motorbike!

RIP: Software design pioneer and Pascal creator Niklaus Wirth

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Re: Algol-68

IIRC, and definitely it was a long time ago, but possibly the variables could be dynamically allocated. Possibly even dynamically typed, who knows?

In those days, efficiency and speed were considered the prime goal, and so a dynamically typed language like, oh, Python, would have been ridiculed.

Things have come a long way since then.

Bitsminer Silver badge

Algol-68

I was at a seminar at the Uni sometime in the mid-70s or so. A visiting prof, don't remember who, wrote on the blackboard:

A := B * C;

And stated: "This statement requires nine run-time checks."

That was the end of any interest in Algol 68.

As lawmakers mull outlawing poor security, what can they really do to tackle online gangs?

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Re: "Another approach is to outlaw poor security practices"

This.

It just needs doing.

Broadcom to end VMware’s channel program, move partners to its own invite-only offering

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when is a channel not a channel?

When it is geographically bound.

I've been through that at $FORMERWORK when ESRI (geo-information software vendor) insisted very much on supporting their geography-based channel scheme. We system integrators had to buy their software in the destination country, often at inflated prices, and of course without support because, you know, the channel partners don't support outside their own country.

Or HP(E), which did the same on a large procurement (estimated $2M pa for several years). They lost that one.

I could name some others but IBM is too hard to spell.

If Broadcom fails to support their multi-/inter-/cross-national markets (VARs and system integrators and multinational corps) then they will lose marketshare bigtime and with Musk-like RUD.

War of the workstations: How the lowest bidders shaped today's tech landscape

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Yes but no

(There are some interesting comments on HN and rebuttals by Liam. But here is my take.)

usually completely ignoring all the lessons learned in the previous generation

Umm, not really. RSX-11 on the PDP-11 was a decidedly calculated subset of OS/360 on the competition's machine. It had file IO added (and the whole almost-flat filesystem) but the rest is fairly simple process management etc. IBM's designs were good enough to copy. And added to the 16-bit cheap-ish CPU that was a follow-on to numerous other designs by a very experienced software and hardware design crew at DEC.

The notion that lessons were not learned I think is incorrect. The lessons were very much learned: Choose the best two-thirds of your competition's product, add your own third. Sell and sell hard. (And, as always, beating IBM on price is child's play.)

The Symbolics stuff was legendary (at the time) for complexity and cost. And uselessness -- were there any actual software products sold requiring a Symbolics machine? Nobody buys $100k machines to heat up a room with the wasted power. You have an expensive user because they have skills (orbital calculations, microprocessor design, chemical plant optimization) so you buy them an expensive tool. Who bought a Symbolics workstation for an end-user? Anybody? Bueller?

Another example: the IBM 360 series had the optional model 2250 display. It was early days and used a light-pen to detect the flash on the CRT but it sold well because there was design software to go with it. That was the beginning of the workstation era -- build or design things quicker with interactive computing. Only affordable by mega-corps but the market was then "proven". And competition quickly appeared.

I don't claim the notion that a skilled thinker could manage to produce useful products with LISP-like languages is wrong. Arguably the equivalent modern example is the construction of WhatsApp by a handful of people using Erlang. Now that is an exotic language.

These are cases where the product filled needs of the market. Sometimes the market didn't even know it needed them.

Arguing over New Jersey/Stanford or MIT "approaches" is irrelevant. Designers do what designers do and adding post-facto explanations by technology historians is not adding anything useful.

There were only these two schools of thought you say? Oh.

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