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ScratchCat

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Everything posted by ScratchCat

  1. It may be the full capacity is not available in the BIOS. In Windows ensure you format using GPT to obtain the full capacity.
  2. NOAA are probably defending themselves for the Starman launch referenced in the article. The Starman event did not have permission to use cameras - therefore NOAA may want to show that they are not allowing SpaceX to do this gain, protecting them from a legal attack / copycat events. This may be minor but there could be other companies who do the same and to escape punishment reference how SpaceX was allowed to do it without a licence. It they let SpaceX do this without a licence they would be letting them break the law.
  3. Wiped drive completely. Repair installation and "upgrade" to 1709 again did not work either.
  4. I updated my computer to the Fall Creators update and due to a lack of storage (64GB boot drive) had to immediately delete the old version of Windows - this seemed reasonable as everything was working fine. After a couple of days the Start Menu would not open and the taskbar would flicker every 10 seconds, any UWP apps would be closed/minimised. The computer will return to normal after a few minutes and then shortly after return to flickering. During the flickering hundreds of errors appear in the event viewer as below: These errors also appear if one attempts to use cortana/search or open the start menu. Each time the flickering occurs the ShellExperienceHost uses ~30% CPU for a few seconds and then crashes/disappears from the Task Manager. Task Manager does not flicker - This seems to indicate it is not a graphics card driver issue. Attempted solutions: Deleting TileLayerDatabase Cloning TileLayerDatabase from a working system Create a new User Reinstallation Windows. Editing profile in registry Updating graphics drivers Removed graphics drivers Powershell scripts to reinstall Cortana/Shell Experience Host/Start Menu. At this point the best solution seems to get rid of Windows 10 and replace it with the more reliable Windows 7. Any other ideas or hints would be welcome.
  5. Issue: Windows vulnerable to Meltdown. Fix: Implement patch to shutdown any computer using Intel CPUs as soon as CPU type detected. Outcome: Windows cannot be attacked using Meltdown. Given Microsoft's QA for larger releases this seems reasonable - >7 million Windows Insiders and they still have large scale issues on many releases
  6. Almost everyone who bought bitcoin when it was cheap (<$1) sold it a long time ago, those who didn't almost certainly forgot about it until now. It seems the best tactic is to buy a number of strong coins and then forget about them for a couple of years, they you will not be tempted to sell if there is a large market correction. If one had a couple of old hard drives around e.g. 3+ 500GB, would it be worth it to mine using these? Not for profit of course, just as an interest such as while gaming when the power consumption due to the mining is negligible. Edit: The network has an estimated capacity of 350PB, at $150 for an 8TB drive it would cost just over $4.3 Million to execute a 51% attack, Burstcoin really needs to grow a lot before it is secure enough for large scale transactions.
  7. https://blog.frizk.net/2018/03/total-meltdown.html Microsoft made something termed "The worst which could happen" into something even worse. Microsoft's Windows 7 patch for Meltdown had the unintended effect of letting any application access kernel memory - both reading and writing. Microsoft accidentally set the User/Supervisor flag to User, allowing any user mode application to access the kernel memory which was what the patch should have prevented. Additionally the location of the flag was not randomised like in Windows 10, allowing simpler access to the flag. Microsoft has patched the issue in the mean time - only Windows 7 x64 systems were affected. Given only one platform was affected by an incorrect flag I would assume that this was produced by an incorrect compiler or a similar issue rather than a human. However one has to consider what sort of automatic security testing/fuzzing software Microsoft used if they did not check for the issue they were fixing. Edit: Windows Server 2008 R2 also affected
  8. You can use these containers for things other than Facebook, useful for using multiple accounts on the same website and segregating online sessions. https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/ Privacy Badger's ability to block cookies only rather than block the service is quite beneficial for accessing websites which you want to support via ad revenue or block users with ad blockers. Decentraleyes is also quite useful - The addon reroutes common CDN requests to your local machine to prevent tracking via CDNs and lowering page loading time. Canvas Defender/Blocker - Obscure your canvas fingerprint (each machine generates a different hash depending on the system configuration and this can be used to identify an individual). User Agent modifiers - Hide / change your user agent. You can use panopticlick to check how detailed your browser fingerprint is. Given the amount of tracking everyone is doing now it may be worth switching to Tor without the proxy.
  9. But can it run Crysis while training multiple neural networks to play Crysis? The improvement over time for training Neural Networks is probably one of the largest in the industry at 31.25X over 5 years or 2X per year. Given the dedicated hardware (Tensor cores) in Nvidia GPUs it will not be long until they release a TPU ASIC like Google, if this occurs AMD would have completely lost the ML race and a very large source of income. Interesting fact: The NVLink switch chip has more transistors (2 billion) than the GP108.
  10. It shouldn't. The concept of mining using storage is called Proof of Capacity - you store a bunch of pre-calculated points on a graph using your hard drive, when it comes to mining you look for something which would match the difficulty you are mining at on the drive and use this value to prove the block. https://coincentral.com/what-is-proof-of-capacity/ Error 404: Reference not found
  11. The lowest end 7th Gen Core M3 has a tray price of $281 while a mid end Atom x5-Z8300 is sold at $21 - over a 1000% increase for Core cores rather than Atom cores. https://ark.intel.com/products/95449/Intel-Core-m3-7Y30-Processor-4M-Cache-2_60-GHz- https://ark.intel.com/products/87383/Intel-Atom-x5-Z8300-Processor-2M-Cache-up-to-1_84-GHz You can get a keyboard - only another $159 on your $289 product. Robustness is also a major concern. On the one hand you have the thin, glass-covered iPad and on the other you have a plastic/metal cased laptop - which would be better suited for a student who has to drag one around in a bag full of heavy books?
  12. In terms of IPC (at equal frequency) an A73 is slightly more powerful than an A72 which in turn is about twice as powerful as an A53. An A53 is the generic core found in almost all phones today as the low power core cluster. For phone reference A73 derivatives can be found in the HiSilicon 970, Snapdragon 820/821/835 and the Exynos 8895.
  13. DARPA thinks otherwise... but then again it is DARPA: https://newatlas.com/argus-is-darpa-gigapixel-camers/26078/
  14. Would a 'telephoto' lens and hence a smaller aperture for the same sensor as well as a 40MP sensor with tiny pixels even work well under anything but broad daylight? Sensors have filters on top of each subpixel to separate the light into RGB, without a filter you get monochrome images which are slightly brighter as there isn't a light absorbing filter in the way.
  15. The lower cost Android market really needs an update. The A53 has been the main core for many years now with incremental clock speed and power improvements, the Snapdragon 625 is still on newly announced phones even 6 months after the successor Snapdragon 636 was released and for some reason Mediatek seems to produce 9000 different variations of chips with 8 A53 cores even though a 2+4 combination of big.LITTLE provides a better UI experience... The A55 is not much better: + 20% more performance at +15% more power will not revolutionise the market. The main benefit seems to be the integration of DynamicIQ, hopefully allowing more heterogeneous designs for a much needed single thread performance boost.
  16. Google's business model is based on reading their customer's data and generally gathering information. It is highly likely they offer unlimited high quality photo storage to obtain data for training neural networks. It isn't even that hard to make the files unreadable to outsiders, services such as BoxCryptor provide a folder in which all files are encrypted and sent to the folder for the relevant cloud service - more convenient than encrypting each file by hand.
  17. Use NoScript where possible if the website is not trustworthy. It disables script execution (e.g. the javascript mentioned earlier). https://noscript.net/
  18. Keras on Python is also very easy to learn and has support for both Tensorflow and Theano backends. Most components simply slot into the model in a single line without large amounts of configuration. Example: model = Sequential() model.add(Embedding(src_vocab, n_units, input_length=src_timesteps, mask_zero=True)) model.add(LSTM(n_units)) model.add(RepeatVector(tar_timesteps)) model.add(LSTM(n_units, return_sequences=True)) model.add(TimeDistributed(Dense(tar_vocab, activation='softmax'))) return model This website provides a number of useful tutorials: https://machinelearningmastery.com/
  19. I am attempting to understand how Bitcoin processes Txs and stores UTXOs. Firstly: How do Bitcoin wallets/nodes derive the solution to a locking script? From what I understand Bitcoin defines standard transactions including P2PKH, P2PK, P2SH and Multisig. These transactions can be identified by the locking script patterns e.g. using regular expressions and can be solved using predefined solutions, replacing components with the required signatures/hashes. However there are more complex scripts which use more commands and may contain branches using IF/ELSE statements, how would a script solve this? I would assume one could create a tree for each branch in the program, get the user to select the target branch and traverse the tree backwards to obtain a single script, then use the previous methods to solve the individual components of the transaction. Secondly: How does Bitcoin store the UTXOs which belong to a given address? Bitcoin stores the UTXOs for fast access to unspend outputs however at +400MB this database would take a long time to comb through to find the UTXOs which a given wallet can spend. The UTXOs for a wallet could either be stored in the wallet or be linked in a seperate table Address_UTXO(Address,Tx_Hash,Tx_Index). How does Bitcoin quickly find UTXOs which belong to a wallet? Thanks
  20. If it is that pay to win and such a grind, why play it? There are probably similar games out there which could replace this unsupported and almost decade old game. With the amount of time you would spend trying to fix anything you could simply try get a temporary job to buy in-game money it would end up being more effective.
  21. This is not always accurate, my netbook has a supposed full capacity of 30Wh while its actual capacity is ~15Wh, both according to measurements in the powercfg command (measured, not original capacity) , the manufacturer and the cells themselves. However if people are using other tools to measure this discrepancy as they seem to be this might be a problem for Asus. This tactic is mostly known from shabby knockoff phone manufacturers, certainly not what one would expect from a large company such as Asus. Has anyone opened up the laptop to check the cell capacity?
  22. They will be adding support in the future. I assume the Erase Data function is based off the number of failed attempts, if they can brute force the passcode on device it is highly likely they found a way to disable the counter.
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