1479 posts • joined Wednesday 19th September 2007 14:47 GMT
Re: How about
The HFT boys already use multiple independent links to the exchange, and FPGAs to figure out which link has delivered details of a given price quickest and discard the same from the other links. Jitter won't work.
Re: time stamps..
How do you ensure that everyone is running to exactly the same time standard?
Exchanges have always been about bid and offer. Someone either bids a price that they want to pay or offers a price they want to sell at. The price will change until someone hits the deal, ie they commit to the price of the other party. First one in gets the deal, so the precise time the deal is hit becomes important. The issue with your solution is that it doesn't deal with multiple parties all hitting at the same price.
Re: Hardware and software are different investments
Yes, it is a silly idea. Think about it from the point of view of a fresh graduate. Do you go in to a company which will teach you skills that are freely transferable to most other companies out there, or one that will teach you stuff that is pretty much ONLY used by them, and is very old tech. You'll get SOME uptake, but it's not going to attract the best and the brightest.
Hardware and software are different investments
You can spend huge sums putting new machines in to run old software, and it's the maintainability of the software that's the issue here. The trend has been towards making software LESS efficient, but that as a byproduct of making it easier to document and maintain. There is a limited supply of developers who understand CICS/COBOL still, and little new uptake. There's a big cost and little apparent benefit in migrating to something more modern (say UNIX/C++), but it's something the bank is going to have to do unless it wants to paint its self into a corner when it comes to staff skills.
Probably means they have shed loads of CICS/COBOL/ISAM code and IBM assembler that no one understands any more and is hard to maintain. Buying a faster mainframe is probably not the best way to go in this case (something like a clustered Power 7+ Server and Oracle RAC would probably be a better and more robust solution for general ledger/real time payments).
Re: There my be trouble ahead.
Nah, they'll be throwing lots of consultants and contractors at it (many of which probably worked for the bank before they fired them). Bean counters: they know the cost of everything and the value of nothing.
Re: @Steve Todd
As it happens I'm an ex-banker. I spent 10 years working for the cash management division of one if the largest investment banks in the world. For 15 years before that I was a contractor, working for everything between a flight booking company through a water utility to the research division of a large pharmaceutical company. I think I'm pretty well qualified to say what is or isn't a complicated environment.
The high level system diagram of the bank's IT environment ran to a page of A2 IIRC, and that was with a small font. They had a whole system responsible just for cataloging the systems that they had, the technologies that they used, the systems that they connected to and their level of compliance with IT rules.
You've described a small part of the functionality of a general ledger. That is connected to MANY other systems (for example links to SWIFTNET, FPS, credit management, reporting, direct debits etc.) ONE of those links is to to ATM network. The failure could have been due to anything from network, through hardware, the interaction of existing bugs or release management (though one would hope that they weren't releasing new software on what was expected to be one of the busiest days of the year).
It may not make a difference to the intended audience, but that's at least one of the reasons that the iPhone 5C/ Galaxy S4 etc are more expensive.
Re: Oh goodie...
I don't know where you've been looking, but Apple list them at $19, so you can afford a whole one plus something else.
Re: Nothing new here!
The book thing was a different issue. Apple aren't stopping the cellco's selling Android devices for less money or on cheaper contracts, which would be the equivalent restriction.
Re: Excellent Article
You honestly want ads from every store in the mall? You get to choose which companies you are interested in. Companies can group together under a single common app, but you get to choose if you are interested or not. Thats why it's not the big deal that the haters seem to be trying to make out.
Re: Excellent Article
In case you didn't read the article, beacons only transmit an ID. The ID contains a 128 bit GUID and a location code. The GUID launches any app that is installed and has registered that ID. You CAN'T use it to distribute fake vouchers as the voucher is created by the owning store's app, that the iPhone owner has to install.
Re: Err well...
The Surface 2 is ARM powered, just like the iPad Air, but with a less powerful SoC. The Surface 2 Pro uses a Haswell, just like the MacBook Air, but with a poorer battery life, an optional extra keyboard and only two working screen angles you can set it to. The Pro is more expensive than an equivalently spec'd MacBook.
Most modern portable devices
use software throttling to keep themselves within power and thermal envelopes. Even desktop class machines adjust their clock speed based on load (Turbo Boost anyone?).
What the adjusted software WILL do is invalidate any benchmark results.
Look, it's very simple
Version 1 is at best beta quality, incomplete and full of bugs
Version 2 fixes most of the bugs
Version 3 adds the missing features and is what the customers actually wanted.
Version 4 adds new, flashy stuff and breaks it.
Version 5 fixes the problems with version 4 and is again what was wanted.
Version 6 has a whole new UI (for poorly explained reasons), and is once again broken.
Version 7 fixes version 6
So you should get in at version 3 and then upgrade every other version.
Did you read the article?
From the share price it would seem that investors are coming back in droves.
The price isn't even unusual for a company of its size. The financial number to look at is something called PE ratio, the ratio of share price to earnings per share. Historical PE ratios have averaged around 10-20 for stock market listed companies. Above 20 is regarded as overpriced, below is underpriced. Apple are currently at about 13.
With any market there is a well known pattern of sales for a new product. You can see the effect for iPods quite nicely. First it is new technology and expensive, then the average price falls and volume increases as the market matures, and finally the market shrinks as it is replaced by something new. Given that the market (and Apple's sales) are still increasing then we still haven't hit maturity for both smartphones and tablets, and it will be some time past that point until Apple have a problem, ASSUMING they never invent a single other new product.
It's no use hiding behind an AC mask
If you're going to make your posts quite so obvious, Mr Obviously!
Re: Does jasper actually understand tech at all?
Uncompressed audio is about 1.4Mb/sec. Compressing it first makes digital filtering less effective, and you need a sustained data rate, including error correction to handle glitches and dropouts.
Re: Does jasper actually understand tech at all?
Looking at a rather better report over at Apple insider it seems that it is indeed Bluetooth LE that is driving this.
No, noise cancelling is about removing the sounds that you DON'T want to hear from the ones that you do. Try NC headphones while flying sometime and you'll grok why it's a good idea.
Re: Does jasper actually understand tech at all?
Purely from a power point of view bluetooth wins. It would need work from both ends to make audio stream over LE, and the data rate may be a bit of an issue (peak is 270k bits/sec over a 1M bit channel). I'm still trying to work out if device paring or advertised services would be the easiest option for users.
Does jasper actually understand tech at all?
"Both Apple's products and most hearing aids use a 2.4 GHz signal, which could make any linkup with Bluetooth much easier."
That's kind of like saying both vans and bicycles run on roads, so it should be easy to make a bike that can carry furniture. About the only thing they're likely to have in common at the moment is the aerial, and I wouldn't count on that. You'd need a completely new bluetooth or WiFi radio in order for the two to work with each other, and I'm more inclined to the idea that Apple would be using AirPlay which would imply Wifi.
There's part of the Jobs philosophy that MS need
And this conflicts with what the article thinks entirely. Microsoft need to start thinking of new ideas on their own. Just providing their customers what they are asking for isn't the way to riches and long life, the current boom in tablets shows this. They need to be out there coming up with new classes of thing that users didn't realise they wanted or was even possible.
To go back to the common car analogy, before the car was the horse drawn buggy. Microsoft's current strategy is to make better buggies, and to strap 2 stroke motors to the back of some of them. They need to be getting in to proper car design and manufacture while working out how to give the world jetpacks.
Re: Is this a story? @stephen gray
I could manage a 20 mile walk back when I was 12. 11 miles in a day isn't excessive for anyone with a reasonable degree of fitness (it's probably even going to help).
It's not the kind of job I'd like to do, but that's more because it would bore me rigid.
Re: Missing the point @Andy 73
Yes, you need a ZigBse gateway on your network, but then the cost of the nodes drops and the range improves (it's a mesh network, so messages get relayed around to the extremities that would normally be out of range).
The Philips Hue lighting system is based about this technology, it has clients for iOS and Android. It's not something that consumers would write themselves, but the API is open so you can if you wish.
When it was first built looked pretty much like a gentleman's sausage with accompanying balls. It's not like architects don't have past form at this sort of thing. Saying that, it's not a bad looking design, certainly not one I would complain about.
Re: Missing the point
That's what ZigBee is for. There's no need for a card factor controller (that requires some sort of adaptor shield) and programmability if you are targeting consumers with this.
Or there's the DigiX
Which gives you true Arduino DUO compatility, 99 IO pins, 512K of flash, WiFi, mesh networking (nRF24L01+), a real time clock, MicroSD socket, USB OTG port, audio out and support for The Intermet of Things.
(it is now shipping out to Kickstarter backers and will be available to the public shortly)
There's a joke from the Second World War. Churchill, Roosevelt and Stalin were having a meeting. Churchill asks Stalin if there's anything he can do to improve his troop's moral. Stalin says yes, they need more condoms. Churchill says how many, and what size. One million, and the standard size for the Russian army, 12 inches he is told. Somewhat embarrassed by this he talks to Roosevelt afterwards and asks him what he should do. "Stamp them as medium and send them" he is told.
Re: How sad
Yes, because any company, having come up with an idea, should allow their competitors to copy it for free. That way there's so much incentive to research new ideas for the next big thing. /s
Re: It's about "innovation" and "hard work"
The latest Android builds bounce back, but in a way that is sufficiently different to Apple's patent as not to infringe. The patent is rather more specific than you seem to think.
Re: "scrolling and bouncing" is patentable?
Once again, this isn't about windows bouncing. Android still uses a bounce effect, but one that isn't covered, it's about the type and method of bounce. iOS windows overshoot and then move back to their end position rather like a critically damped shock absorber. That's the type of bounce that is covered.
This isn't a case of just tacking "on a mobile device" on the end of something, Samsung showed desktop based systems in their attempt to prove prior art and I'm pretty sure they would have provided the Amiga examples quoted if they helped their case.
So you need to have downloaded an app
And not deleted it, and not disabled location services (which can be done on a per-app basis) to finally get location based adverts trying to sell you stuff. It seems to me that if you've got that far then you actually were interested in seeing what the shop had to sell you.
Re: "scrolling and bouncing" is patentable?
As always, there's some fool here who reads the headline description of the patent and says "that can't be patentable"
Patents are always about method. If someone else can figure out another method to do the same thing then they are free and clear. This wasn't about scrolling, but the method that Apple chose to implement the detection of scrolling gestures. Likewise bouncing was about the method that Apple chose to indicate the end of a scrollable document. Google seems to have quite happily worked out how to get around these in Android. Newer Samsung devices also work around them. This trial was always about older devices where Samsung had gone out of their way to copy Apple's methods.
Re: I estimate
For a computer, as it was then implemented, he was right. They were big, heavy, expensive, used huge amounts of power and needed a trained support staff to manage them.
I don't think that this machine has the same scope for reduction in size, power and price. What's more a standard laptop is good enough these days to demonstrate server software, or you run the job on a cloud server.
Re: Short list of things that can't be printed by 3D printers
Ah, someone who hasn't heard of SLS (Selective Laser Sintering). You can use it to print parts in anything from nylon to titanium. The titanium parts are strong enough to be used in rocket engines.
3D printing isn't the solution to everything, but it's surprising what it can and has been used for.
That they had $2.5 billion in cash to pay for the shares? That and the company was a brokerage, they weren't supposed to be holding positions in a stock and the SEC would look upon them with disfavour for doing so.
Re: Yes, a "solution looking for a problem"
One per shark
Re: The problem is
Firstly there's no way that AMD could even make an FX for $0.30, never mind sell them for that.
Secondly FX's don't have integrated GPUs, which make them much smaller chips and much cheaper to make.
Thirdly custom parts are always more expensive than off-the-shelf.
Fourthly the speed of the CPU isn't relevant here, nor are the number of controllers. This is for a gaming box and is going to be limited by the GPU most of the time and has zero need for expansion.
The problem is
that it ISN'T an FX core. The closest thing you can buy off the shelf is the A10 series, but this is a custom chip with double the number of CPU cores and 3 times the number of GPU cores.
Re: Faking accounting,evading taxes..more marketing bull.
It doesn't matter how much it costs AMD to make the chips, what matters is how much they are selling them to Sony for (have you looked at the retail price of Intel CPU's?). Despite your rantings the GPU in these devices is reasonably good, which is the important factor for a games machine. Sony could have either bought an Intel device, and limited themselves with Intel's sub-par integrated GPUs, or bought discrete GPUs from AMD or nVidia, which would have significantly increased the BoM costs.
The jaguar is a compromise, decent GPU performance and reasonably quick CPU cores, in a single package and at a price that makes the console economical to build. The $100 price is an estimate based on the prices that IHS can get. Sony probably got a better deal than that, but not by a huge amount.
Clustering general purpose/home machines isn't a new idea. For something that needs a lot of GPU work it's not a bad idea, or in the case of SETI if you've got lots of spare CPU cycles going begging. What they do lack is the resiliency of full server class machines (no ECC memory for example).
Re: Brute force
Bitcoin mining on anything GPU based these days is a no-go. The latest ASIC based machines are homing in on the 1 terra-hash/second mark. You'll be unable to compete and you'll struggle to cover your power costs.
Re: Beware the heathens
Since it is implemented using Bluetooth LE (which is well documented) perhaps you could explain how it could work WITHOUT Bluetooth being enabled? Thought not.
Re: I presume...
It's part of the Bluetooth stack. Turn bluetooth off and it's gone. Also, as it is part of location services, you can enable/dissable it globally or on a per app basis.
For the types of bomb needed the fallout is actually quite small. Even given the fallout of conventional bombs they calculated that the amount of energy needed for one launch would result in statistically 0.1 to 1 extra death in the world due to radiation. To drive the ship more conventional explosive would be used, and less fissionable material (you only need blasts in the low kiloton range, not the megaton monsters that the military had been testing).
Either way, building the ship in orbit mostly from space-sourced materials gets around the problem.
Or you could go back to an old idea
And use the Orion nuclear pulse drive from the 1950s. That could in theory shift a 1,600 tonne payload out to Jupiter and back.
See S.M. Stirling's alternate history "Stone Dogs" to get an idea of what could have been done with these things, if international treaties banning nuclear weapons in space hadn't put paid to the idea (they worked by basically throwing small A bombs out of the back).
Re: we will get some
If you're restricted to an office then who cares about needing to be permanently connected. If you're out and about then you'll want a cellular modem anyway (and can get one built into tablets).
Unless the software is some kind of monster CPU/RAM hog then you don't need to be very far up the modern hardware scale to support multiple users on one server these days (you can even manage on a desktop box with Windows Server installed).
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