Tinh Network

4 reasons why USB-C headphones never become popular

2019-08-22T03:10:00.004-07:00

Prominent in the above reasons is the need for meager and cost too high, making the opportunity for USB-C headphones become more and more popular.
One of the most painful aspects of removing headphone jacks on smartphones is the lack of a reasonable replacement. Every company that removes an analog headphone jack on their device tells you to switch to a wireless headset, but if you don't want an extra device to charge regularly, or if you change the device Frequently and do not want to constantly encounter problems when pairing with Bluetooth every day?

Now USB-C headphones seem to be the perfect choice, the most reasonable for the problem of audio port connectivity by enabling Android users and most of the new laptops to launch a technical portal. This number replaces the removed headphone jack. However, such headphones are still quite rare and expensive, a situation that never seems to be overcome.

Here's why USB-C headsets seem to become a popular product:

Apple and Samsung don't care about it

The most obvious factor against the popularization of USB-C headsets is that the two largest smartphone manufacturers in the world do not need them. Apple iPhones may not have a headphone jack, but they don't have a USB-C port, and Samsung's devices still have a 3.5mm headphone jack.

Things could change dramatically if Samsung abandons this analog connection, but so far the market for headphones with USB-C pins is still very limited when demand from the world's two largest smartphone brands. Is negligible. The only way for a headset manufacturer to work with these two brands is wireless via Bluetooth.

USB-C is not a free item

At the CES fair in January, Jabra explained why the company's new wireless headset, the 65t earbud is still charged via the micro USB port. The simple answer lies in cost. Although the use of USB-C ports for headphones will be seamless for users when they can charge both laptops and phones, it will push the price of the Elite 65t to a higher price.

Cost is the same reason that Synaptics introduced OQI My Lockey fingerprint scanner port with USB-A port instead of USB-C, though it is targeted at business customers. Synaptics vice president Godfrey Cheng said using USB-C charging ports would cost 25% more expensive, from a $ 100 product to $ 125. Cheng also stressed that there is a significant cost difference between using a USB-C cable for charging only and another cable for data transfer only.

USB-C is not universal

As is often seen in the technology world, when a cable fits into a plug port, any compatible cable will be the same. However, this is not entirely true for USB-C. Some USB-C ports have Thunderbolt 3 ports for higher data bandwidth, but most don't. There is a USB-C port that can be charged for the device in use, but not all.

Audio-Technica, Beyerdynamic, Sennheiser are all committed to further expanding their wireless headphones, even for gaming headsets. The future of consumer audio devices is almost certainly in wireless connectivity.

Meanwhile, with audio followers, they all have 3.5mm, 6.35mm and XLR cables. These analog analog connections allow them to use dedicated amplifiers and DACs. This makes them less interested in adding another digital connection.

Although not much hope for headphones, perhaps the solid future of USB-C will lie in the ability to charge electricity - already accepted. Apple brought USB-C as a charging port on the MacBook line, Google did the same with Chromebook, Lenovo with ThinkPads. That's not to mention Android smartphones. When USB-C becomes more popular, perhaps the cost of accessories and USB-C cables will fall, and we'll have the right to dream about wireless headphones with USB-C connectivity as a backup.

Apple does not need 5G for the iPhone, but for it "will make it all amazing" Tim Cook promises in 2020

2019-08-22T03:04:00.002-07:00

What Apple needs is not just an iPhone 5G but another product that is even more important.

Over the past few days, Apple has been the technology world because of reconciliation with Qualcomm, pledging to stop all hearings between the two sides globally. Not only have they forsaken a costly legal battle, they have been pursuing for many years, not only to give up the claim for compensation if the lawsuit can reach tens of billions of dollars, Apple may also have to repay nearly 6 billion. USD license fee for Qualcomm along with a $ 9 royalty per new iPhone sold.

Why is Apple, a company that is famous for its tough negotiations with its partners, suddenly appear so vulnerable to Qualcomm? The answer is clear to most people, Apple needs Qualcomm's 5G modem chip for its iPhone by 2020, when they lost faith in Intel, their current modem provider.

In theory, compared with 4G network technology, 5G has many outstanding advantages, among them is the connection speed 10 times faster, the network capacity is 1,000 times, the latency is almost 0. , lower energy consumption, can connect millions of devices at the same time in a space with high equipment density

But what are the real benefits to Apple's iPhone?

Watch movies, surf the web, smoother? Live stream or call FaceTime higher resolution? Or playing games without delay even while sitting in a high-speed car? Those advantages are also quite interesting, but not too superior to current technology. That means adding 5G to the iPhone will not become a big enough reason to convince users to upgrade to the new iPhone. If so, Apple will never spend such a huge amount of money to put 5G on iPhone 2020.

So does Apple need 5G because their other competitors, such as Huawei or Samsung, have equipped that technology on their smartphones? Apple has never been afraid to go after rivals in networking technology. They have been behind in 3G, 4G without much impact on their sales. This is probably not very different from 5G when their competitors themselves have not shown any important applications that need the technology.

But maybe Apple does
Earlier this past March, Ming-Chi Kuo, the most reliable analyst on Apple products, released a prediction in 2020, Apple will release AR augmented reality glasses. In its first appearance, the rumored product will long serve as an accessory for the iPhone.

This means that this AR glass will act as a display device - an external screen with an extremely large viewing angle in front of the user. Meanwhile, processing heavy tasks, image extraction, data connection and object positioning in the surrounding environment will be reserved for processors on the iPhone.

This approach of Apple is different from Microsoft's HoloLens glasses when HoloLens itself is a mobile computer to handle the image and data tasks needed. This approach of Apple will help the glass is light and elegant, according to its traditional design philosophy, instead of a large, heavy glasses like HoloLens.

However, this approach will encounter a problem that is data connectivity. Not only that, with Apple's design, they will almost certainly have to use a wireless connection, instead of needing a cable to transfer data. Meanwhile, the augmented reality content is so large that it will be hard to display consistently on the current wireless network connection. This is the problem iPhone 5G can solve in the future.

How Apple needs 5G

The advantages of connection speed, data transfer bandwidth, extremely low signal latency and high security of 5G will allow devices to transfer files of large capacity directly to each other (D2D Device-to-Device), at almost instant speed.

It may sound strange, but the technology for direct file and data transfer between devices has been widely used by Apple. That's the famous AirDrop feature, or Bluetooth connectivity, for AirPods to connect quickly and stably to other Apple devices. The connection between the iPhone and the AR glass will be similar, but it is dozens of times faster than Wifi (the maximum speed of ac standard Wifi is about 1,730Mb / s, and the maximum speed of 5G can be reached) to 10Gb / s).

Another factor that makes the 5G connection becomes essential for the development of AR and VR content or IoT devices is the ability to consume energy more efficiently. This will be especially important for creating a battery-operated AR glass but still ensuring a neat, elegant design - a characteristic of Apple products.

Apple is about to buy Intel's modem development segment for $ 1 billion

2019-08-22T00:11:00.002-07:00

This will help reinforce Apple's self-built modem modem, to escape dependence on Qualcomm.

According to a new report from the Wall Street Journal, Apple is about to complete an agreement to buy back Intel's smartphone modem development at a price of $ 1 billion. Also according to WSJ, this deal may be announced early next week.

Earlier, Intel made the technology world shaken in April this year when it announced it would withdraw from developing a 5G modem for smartphones. At the time, Intel CEO Bob Swan said in his statement: "There is clearly no clear path to profitability and positive cash flow."

Intel's announcement came just hours after Apple and Qualcomm teamed up to bring a 5G modem to the iPhone under a six-year agreement. However, Apple has shown that it has not given up its efforts to produce its own modem.

Acquiring Intel's modem business will help them consolidate this effort and have greater control over a critical component in their device, especially when rumors show they catch top 5G compatible iPhone maker.

From how to phone, TV, refrigerator, how does Samsung revolutionize electronics design?

2019-08-21T23:57:00.002-07:00

Although not the first technology company, but undeniably Samsung's great contributions to the general development of the technology world.

From the beginning to becoming one of the leading electronic corporations, with the principle of always paying attention to improving the user experience, the company's new products always bring breakthroughs, changes to respond. Responding to the increasing demands of users.

But it does not stop at bringing outstanding quality on each product, Samsung also creates revolutionary breakthroughs in design, contributing to bringing a new and modern appearance to the technology world.

With products like Galaxy S, Galaxy Note, Samsung has set the trend, but now has become "standard" of all phones such as big screen, infinity curved design, borderline ... Do not stop There, the Korean electronics company also created incredible breakthroughs when turning the TV from a household item into an indispensable ornament in the luxurious living room of each family. Samsung TV Bordeaux, inspired by a glass of wine with its curving curve and stylish feet, has become a symbol in the design world at the time it debuted to give Samsung a huge success.

But don't stop there, with Samsung all household appliances must become a true "work" of art. Capital is not an item that is focused on appearance because hidden deep inside the kitchen, the refrigerators have been "enchanted" with a look full of modern technology. Especially the refrigerator models Side By Side RS5000 2019 is the clearest proof for the breakthrough in terms of design turning ordinary kitchen space into luxury class.

Designer - architect Nguyen Huu Vinh has also made "professional" evaluations of the design language Flat Style Design of RS 5000 refrigerator: "Modern angular lines, details, dark handles to the lowest level of luxury for modern apartments. " These are large-sized cabinets, but the subtle, borderless flat design gives the new Side-by-Side a more perfect look than other "local" refrigerators.

Wearing the breath of minimalism, the refrigerator Side By Side RS5000 2019 is one of the key highlights that attracts the look in the kitchen. "Thanks to the modern, minimalist design, users can put RS5000 in harmony with many different kitchen furniture or make more luxurious for the reception bar." - Architect Nguyen Huu Vinh commented.

Besides meticulously elaborated exterior, Samsung did not forget to bring a new wind to the refrigerator with advanced technologies. Space Max technology helps to optimize the space inside the refrigerator, bringing a capacity greater than 100L but still keeping the size of a normal refrigerator.

Along with the optimal quick cooling technology, the ability to customize the compartment gives the impressive Side By Side RS5000 2019 not only beautiful in appearance but also powerful from the inside.

Keeping up with modern life, technology items have gradually changed. Not only is the experience of product quality, external design also an important factor affecting consumer choices. From good smartphones to refrigerators in the kitchen, Samsung blows artistic souls into each design, making them not only household items, but also becoming an indispensable ornament to demonstrate. for the prosperity of the owner.

What's important about Western Digital Active Archive

2019-08-21T12:00:00.000-07:00

In 2015, Western Digital acquired the Belgian company Amplidata and its object storage technology. Amplidata made its name as early as 2008 with its AmpliStor object storage system marketed in the form of ready-to-use appliances in scale-out mode. Amplidata helped to popularize the use of erasure codes for data protection, but initially ignored duplication mechanisms, a choice that penalized its performance for applications store large amounts of small files.

Shortly before its acquisition by Western Digital, one of its historical shareholders, Amplidata unveiled its new generation of object system, called Himalaya, designed to meet the needs of the "hyperscale" type and based on the same fundamentals as Amplistor.

Active Archive: a ready-to-use object storage system based on the Amplidata platform

It is based on Himalaya that Western Digital has developed the Active Archive solution. Active Archive is a hardware appliance that ships the Himalaya code and book to customers, ready to use. The appliance is in the form of a 42 U rack system integrating all the elements (controllers and JBOD) allowing the implementation of an object storage system .

From a technical point of view, each rack is optimized to deliver an optimal Himalaya system. At the top of the rack are 3 control nodes (1U Supermicro servers) running the Amplidata BitSpread software, the metadata controller and the node administration software).

Then there are six storage nodes (again 1U Supermicro servers), each connected to one of the JBOD specially developed by HGST. These disc drawers are capable of accommodating 98 8TB helium hard drives (Helio-Seal range) in 4U. The rest of the space in the rack is occupied by smart PDUs and network switches that provide the interconnection between the nodes, but also provide interconnection with the outside. It is thus possible to aggregate multiple Rack Active Archive into a massive archive system of several hundred petabytes.

4.7 petabytes of raw capacity per rack

According to HGST a 42U rack is designed to deliver a raw capacity of 4.7 Po. But the actual capacity of the system, when configured to use the BitSpread algorithm, is about 28% lower to this total. And it degrades even more, if we implement the mechanism of replication between several datacenters (GeoSpread), etc.

According to HGST, Active Archive natively supports the S3 object storage protocol and can also provide NAS access (NFS and CIFS) if paired with an Avere NAS gateway.

Active Scale: a storage system for more "modest" needs

Western Digital recently completed its offering by unveiling the P100 ActiveScale, a smaller but more economical system, available in three versions capable of storing between 720 TB of data in 6U and 19.4B of data in 5 racks. Public prices for the new system start at 22 cents per GB against 49 cents for the Active Archive System.

HGST recommends the P100 ActiveSystem for customers who need less than 2PB of data. The manufacturer aims to meet the needs of media streaming, backup and archiving applications. It also targets the massive unstructured data storage market.

To do this, the ActiveSystem P100 is certified and integrated with several solutions on the market as the archiving software Versity, the cloud gateways CTERA or backup solutions Veritas and CommVault. Like its big brother, it can also serve as a low-cost storage back-end for Avere NAS acceleration bridges.

Modular configuration

The system consists of a minimum of three ingestion nodes (1U x86 servers for ingesting data, performing erasure coding and data distribution operations) and storage nodes (which are responsible for persistence of data). These storage nodes are delivered in blocks of six 1U servers - QuantaGrid D51PH servers, manufactured by Quanta Cloud Technologies - each capable of hosting 12 HStart UltraStar HelioSeal 10TB capacity drives. The system can evolve in several dimensions. Performance is increased by increasing the number of ingestion servers and capacity is increased by adding new slices of six storage servers in increments of 720 TB of gross capacity. In the cluster, the different servers are interconnected via 10G Ethernet switches.

According to Western Digital, the payload per 720 TB storage block varies between 480 TB and 508 TB depending on the level of erasure coding used for data protection. This choice also affects the durability of the data, which varies between 11 new (99,999,999,999%) and 15 new, as well as the performances. The ActiveScale P100 is not capable of replicating its data to another ActiveScale, but it is possible to disperse data across multiple data centers through the WD 3-Geo geo-distribution mechanism to protect against a disaster. It is therefore necessary to implement ActiveScale P100 systems in three different sites ...

As with the Active Archive System, the ActiveScale P100 can be supervised via the Western Digital ActiveScale CM cloud analytics tool. This cloud portal tracks the health of the system, predicts the necessary evolutions of capabilities, and proactively manages storage on the system.

The initial setup for an Active Scale system has a retail price of $ 150,000, but customers are expected to pay an average of just under $ 100,000, according to Dave Tang, General Manager of Western Data Data Systems.

The basics about IBM Cloud Object Storage

2019-08-21T11:58:00.002-07:00

In October 2015, IBM acquired one of the leaders in the object storage market, American Cleversafe , and its dsNet technology. It has since renamed the IBM COS (Cloud Object Storage) technology and offers it both as software and as appliances to its customers.

A COS object storage system is a set of specialized appliances that include management appliances, access management appliances, and storage appliances. Assembled into a single system, these appliances enable the creation of object systems on a very large scale (IBM has several customers that have operational systems of over 100 Po capacity).

The CleverSafe access nodes receive the data and cut it into "slices" to disperse it between the storage nodes (via a Cauchy-Reed-Solomon information dispersion algorithm). An IBM COS object system is accessible via the S3 API or via the Swift API. External gateways may allow access in NAS or SAN mode.

The manufacturer's architecture is generally considered very good for long-term archiving of large files, but less suitable for processing more transactional applications and requiring the storage of smaller files, even if Cleversafe and IBM have made optimizations for this last use.

COS technology is also lagging behind its competitors in opening NAS and SAN protocols , although it is possible to use third-party gateways such as Avere, Ctera, Nasuni or Panzura to access a COS platform.

Notably, IBM COS can be transparently used by a Hadoop cluster to store its data.

It should be noted that IBM COS is today the basis of IBM's cloud object storage offer (public and dedicated).

How to know his version of OpenStack

2019-08-21T11:55:00.001-07:00

To make sure your OpenStack installation is compatible with any software you intend to deploy, it is important to know which version of OpenStack you are using. However, finding this information is not always easy.

With Linux, it is not difficult to find the version of your OS. All distributions create a file in the / etc directory that contains the name of the distribution used and its version. With the / etc / os-release file, you have access to the details of your Linux distribution.

Achieving this same feat with OpenStack is a challenge. This is even more complicated because it differs depending on the Linux OS on which it runs and the version of OpenStack used . So there is not one answer, but several answers.

The simplest method is to query the package manager of the Linux distribution. If, for example, OpenStack is installed on CentOS via the RDO distribution, the yum repolist command willdisplay the OpenStack repository . As all OpenStack packages come from the same repository, this will show the version of the platform you are using.

The result of this command on a CentOS installation of RDO should be similar to the lines below:

This method works if OpenStack is installed via the package manager. However, it does not work directly from Git repositories. To do this, try git branch -la to identify the good Git repositories used.

If none of the methods below deliver the correct information, then we can query Nova, one of the pillars of OpenStack. Use nova-manage --version to get the version number (like 13.1.0 for example). You must then go and locate this version on the Nova Project page. Then on this same page, you will see that this version 13.1.0 is part of Mitaka.