Subject: General Tech | June 30, 2015 - 12:56 PM | Jeremy Hellstrom
Tagged: fibre optics
Two records were recently made with fibre optic connections, one for speed and one for length. Researchers at Huawei and Proximus, who operate out of Belgium, recently transmitted data over a 1,040km fiber link at 1.4Tbps using Proximus' optical backbone. Even more impressive for the network geeks out there was the spectral efficiency of the transmission, at 5.7 bits per second per Hertz, a new record for these researchers to be proud of.
Not to be out done, and putting Ryan's Ethernet run to shame, is a link that spanned 12,000 km (7,456 miles) without a repeater. Certainly not at the speeds in the aforementioned link but a huge step in extending the reach of fibre based networks without the problems associated with simply increasing the strength of the signal.
"Proximus and Huawei have successfully trialled a super-channel optical signal, flinging out information at up to one terabit per second (Tbps)."
Here is some more Tech News from around the web:
- Microsoft says Oculus Rift distorts world, grinds corrective lenses @ The Register
- iOS 8.4 and Apple Music available to download on iPhones and iPads now @ The Inquirer
- How to Backup Files in Linux With Rsync on the Command Line @ Linux.com
- Microsoft quietly adds cheaper Core i7 model to Surface Pro 3 line-up @ The Inquirer
- Cisco To Acquire OpenDNS @ Slashdot
- The Tech ARP + Western Digital My Passport Wireless Contest
Subject: General Tech | June 30, 2015 - 03:56 PM | Jeremy Hellstrom
Tagged: input, matias, tactile pro 4
The Matias Tactile Pro is made by a mysterious entity called The Keyboard Company but is branded as Matias. It uses their own type of switches which they mention are ALPS inspired and MadShrimps found them to be almost as loud as a typewriter but without the ringing noise present in their previous switches. This is a working keyboard as opposed to a gaming keyboard, worth looking at if you spend a lot of time typing or if you have a close office neighbour you want to drive insane.
"The Keyboard Company has just started to bring in the Matias Tactile Pro and has lots of stock for potential enthusiast buyers. The newer v4 version is featuring re-engineered Matias Click switches compared to v3 and are meant to eliminate the ringing sound of the previous Fukka."
Here is some more Tech News from around the web:
- TteSports Poseidon Z Forged Aluminium Mechanical Keyboard @ eTeknix
- COUGAR 500k Gaming Keyboard Review @ NikKTech
- Tesoro Excalibur Illuminated Mechanical Gaming Keyboard Review @ Techgage
- Tesoro Lobera Spectrum Keyboard @ Kitguru
- Ozone Strike Battle keyboard @ Kitguru
- Razer Firefly RGB Backlit Hard Gaming Mousepad @ Custom PC Review
- EVGA Torq X5 @ HardwareHeaven
Introduction, Specifications and Packaging
Where are all the 2TB SSDs? It's a question we've been hearing since they started to go mainstream seven years ago. While we have seen a few come along on the enterprise side as far back as 2011, those were prohibitively large, expensive, and out of reach of most consumers. Part of the problem initially was one of packaging. Flash dies simply were not of sufficient data capacity (and could not be stacked in sufficient quantities) as to reach 2TB in a consumer friendly form factor. We have been getting close lately, with many consumer focused 2.5" SATA products reaching 1TB, but things stagnated there for a bit. Samsung launched their 850 EVO and Pro in capacities up to 1TB, with plenty of additional space inside the 2.5" housing, so it stood to reason that the packaging limit was no longer an issue, so why did they keep waiting?
The first answer is one of market demand. When SSDs were pushing $1/GB, the thought of a 2TB SSD was great right up to the point where you did the math and realized it would cost more than a typical enthusiast-grade PC. That was just a tough pill to swallow, and market projections showed it would take more work to produce and market the additional SKU than it would make back in profits.
The second answer is one of horsepower. No, this isn't so much a car analogy as it is simple physics. 1TB SSDs had previously been pushing the limits of controller capabilities of flash and RAM addressing, as well as handling Flash Translation Layer lookups as well as garbage collection and other duties. This means that doubling a given model SSD capacity is not as simple as doubling the amount of flash attached to the controller - that controller must be able to effectively handle twice the load.
With all of that said, it looks like we can finally stop asking for those 2TB consumer SSDs, because Samsung has decided to be the first to push into this space:
Today we will take a look at the freshly launched 2TB version of the Samsung 850 EVO and 850 Pro. We will put these through the same tests performed on the smaller capacity models. Our hope is to verify that the necessary changes Samsung made to the controller are sufficient to keep performance scaling or at least on-par with the 1TB and smaller models of the same product lines.
Subject: Networking | July 5, 2015 - 07:17 PM | Scott Michaud
Tagged: ipv6, ipv4, arin
While the IP system allows for about 4.3 billion addresses, not all of those are available to actual devices. There are some that are designed for private network use, so a router can assign them without worrying that it is blocking traffic to some external resource. Another big drain was wasted addresses, where organizations would purchase a big chunk of the public address space and use a tiny fraction of it. Beyond that, we just have a lot of devices, from cell phones, to home networks, to the servers they contact. Microsoft is trying to reach a billion devices with Windows 10, and the vast majority of them are expected to be online.
I'm mentioning it now because the American Registry for Internet Numbers (ARIN) announced that they will be unable to fulfill some requests for IPv4 blocks. All they have left at the moment are /23 and /24 chunks, which are bundles of 512 and 256 public addresses. As of the time of publishing, 46 chunks of 512 and 431 chunks of 256 are available, which is 133,888 total public numbers.
Of course, it's not as simple as saying “let's move to IPv6 then”. There will be some pain when the switch happens. For instance, Unreal Engine 4 has only been IPv6-compliant for a year, with the launch of Unreal Engine 4.2 in June 2014. This poses a significant problem for older games that rely upon IPv4 addresses for multiplayer, and that doesn't even consider other online software.
Subject: General Tech | July 5, 2015 - 06:00 PM | Scott Michaud
Tagged: windows 10, microsoft
A couple of days ago, Paul Thurrott wrote an editorial about Microsoft's Windows 10 reservation system. His point was that, while Microsoft claimed users of Windows 7 or 8.1 could upgrade on July 29th, they might not get it until later. Upgrades will start rolling out on the 29th of July, but the actual queue is expected to take several days. According to Microsoft's blog post, which shows blatant disrespect for the Oxford Comma, “Each day of the roll-out, we will listen, learn and update the experience for all Windows 10 users.”
Paul linked this backtrack to an episode of Seinfeld, one where Jerry reserves a rental car; his reservation was held, but a car was not. He stated that the availability date was clearly stated as July 29th, and not everyone will get it then. I can see his point, and I agree with it. Microsoft really should provide what they claim on the date that they claim it.
On the other hand, it is possible that Microsoft saw the whole reservation system as reserving your spot in line. That is, it might be that upgrade requests will be processed in reservation order, at least mostly, when devices are available. I imagine a “take a number” system where slots will be assigned for anyone below a threshold that increases as upgrades are fulfilled. Again, this is hypothetical, but I cannot really see any other reason for a reservation system in the first place, apart from pure marketing.
Either way, some may need to wait until after July 29th to experience Windows 10, and Microsoft botched their announcement.
Subject: General Tech | July 6, 2015 - 07:01 AM | Scott Michaud
This is like a five-year-old figuring out how to unlock a fireworks case full of paper crackers.
Regardless, there are two vulnerabilities, both of which have already been updated. Both of them take advantage of the whitelist functionality to ignore malicious code. By default, NoScript trusts a handful of domains, because blocking every script ever would break too much of the internet.
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