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A team of researchers from the University of Maryland and the US Army Research Laboratory has developed a lithium-ion battery that uses a solution of water and salt as electrolyte. Thanks to this configuration it is possible to manufacture safer batteries, preventing the electronic components from being ignited and causing explosions. The most common batteries are lithium-ion batteries, composed of electrical conductors (or electrodes) on each side, while in the middle we find the electrolyte. The electrodes are charged and discharged when the ions move from one to the other, moving through the electrolyte. Usually, electrolytes are made from organic chemicals that are highly flammable. Although the ones that are made with water also exist, as it is not a very reactive element the batteries that incorporate it are usually less powerful. This trend changes thanks to the new battery developed by these scientists, who have been able to use a water-salt electrolyte that can reach 4 volts, the same voltage as the most common organic electrolytes. In the video you have a little higher you can see how the water-based battery marks a power of 4 volts. At the same time, it can withstand drilling with a nail without any danger, without a flame or explosion. "In the past, if high energy was desired, a non-aqueous lithium ion battery was chosen, but safety was compromised. If safety was preferred, an aqueous battery such as nickel / hydride / metal could be used, but there was to settle for lower energy, "explains Kang Xu, co-author of the study. "Now we have demonstrated that it is possible to have access to high energy and high security simultaneously". Of course, they have a great limitation on conventional lithium-ion batteries, because they only withstand 70 charging and discharging cycles, while the non-aqueous electrolyte lasts for at least 500 cycles. Therefore, the next step in this research is to achieve a longer shelf life.

A team of engineers from the University of New South Wales (Australia) has developed a new architecture for quantum computing that could make it possible to manufacture cheaper, scalable, simple quantum chips to produce. But let's start with the principle: as you already know, quantum computation is based on the use of quantum bits or qubits, the fundamental unit of quantum information, which is constructed by particles having quantum behavior. Unlike conventional bits that rely on binary language to perform their processes, the qubit uses the atom states model, which can adopt a state of 0 and one, but also the two simultaneously. For this reason, a qubit is capable of processing much more information than a bit. The quantum computer has to be constructed using many qubits, all individually controlled and intertwined with each other in a large network to perform quantum calculations. At present, the space that has to be between one qubit and another has to be of few nanometers, since otherwise they can not interlace. This means that the other components, such as control electronics and reading devices, must also be manufactured at nanometer scale. This is how the flip-flop qubit works And it is at this point that the innovation introduced by these engineers, led by Andrea Morello and Guilherme Tosi. The team has designed a new revolutionary qubit, called the qubit flip-flop, which promises to make it possible to make quantum processors cheaper and easier to produce. The new design has set the record for qubits isolated in solid state. It is composed of individual phosphorus atoms, implanted in a silicon chip very similar to the current computers. This configuration makes it possible for a quantum silicon processor to be expanded without the precise placement of atoms required in other approaches. In addition, it allows the quantum bits to be located hundreds of nanometers apart and remain entangled. The team has created qubits of the electron and the nucleus of the phosphorus atom. Although they would normally have to be placed a few atoms away for electrons to touch and perform quantum calculations, researchers have discovered that this is not necessary, and this finding is what makes the new architecture revolutionary. Qubits can communicate at much longer distances if the information is encoded in the quantum state of the electron and the nucleus, which have been called qubit flip-flops or oscillating qubit. The advantage of this technique is that the qubit can be controlled by electrical rather than magnetic signals, which are easier to distribute and locate within an electronic chip, and create an electric field that reaches long distances. In this way, it is possible to design a large-scale quantum computer where there is enough space to put interconnections, control lines and reading devices without having to make atomic-scale components. The flip-flops qubits will allow to manufacture long chains of qubits without having to surpass the limits of manufacture of conventional electronic devices. It is a faster and more economical way to build a quantum computer that is big enough to start having an impact on the world. The team led by Morello and Tosi has reached an agreement with the telecommunications giant Telstra and the Australian government to develop a 10-qubit quantum circuit integrated in silicon, which is the first step in the construction of the world's first silicon quantum computer . The prototype will be ready by 2022.

There are two manufacturers of mobile processors that clearly dominate: Qualcomm and Mediatek. Some mobile manufacturers like Samsung or Xiaomi also make their own, but only for their own devices. They are the two mentioned ones that fight in each and every one of the ranges by the control of the market, mainly in the average range. Although being the processor that equip the best mobile phones every year looks great, the reality is that the bulk of sales is concentrated in mid-range terminals. That is where Qualcomm Snapdragon and his rivals play survival, a segment to which Mediatek and its Helio P40 want to strike a near-final blow. This SoC Mediatek bets to lower the cores with respect to P25 and P30. It will be only six instead of the usual eight, which does not have to translate into a reduction in power. The Helio P40 will almost certainly focus on the pursuit of efficiency and fluency, as well as fast charging and WiFi AC, although for the time being the company has not confirmed anything, not even an approximate launch date. It is the usual sources in places like Taiwan that have begun filtering details about the Helio P40, thought to displace the Snapdragon 660 Mobile Platform, the idea with which Qualcomm wants to attract the most affordable mobile manufacturers. According to published information, two of the cores will be Cortex-A73 and the remaining four A53, although nothing is known about the GPU graphics. The disadvantage of Qualcomm is that Mediatek has more presence among Chinese mobile brands, who prefer their chips for all those devices that are not high-end. Clearly, some like the Xiaomi Mi 6 stand for the most powerful Snapdragon of the year, but cheaper models prefer Mediatek. That is why this manufacturer of SoC bet everything to Xiaomi, Oppo and similar brands.

In recent years, it was common for Qualcomm's launch schedule to have two key dates. The first of them, around the month of March-April, announcing the arrival to the market of its high-end processor for the corresponding year. The second, in the last quarter, to announce a new intermediate chip between the generation of that year and the next one. This was done last year, when the Snapdragon 821, a processor with slight improvements over 820, was announced in the second half of 2016. This year it was hoped that Qualcomm would do something similar with Snapdragon 836, temporary successor to 835 which equip mobiles like the Xiaomi Mi 6, LG V30 and OnePlus 5. Finally it seems that it will not be so. According to sources quoted by XDA, the Qualcomm 836 will never see the light, so we will have to wait at least the first quarter of 2018 to see a new high range by the US company. It is a surprise that can mean several things. The first possibility is that there simply are not enough improvements available to justify the launch of a new processor. The second, many that will arrive with Snapdragon 845 and in San Diego (California) have decided to focus on the development of the chip that is expected to equip the Samsung Galaxy S9 This news has an immediate consequence for the mobile that must leave in the remainder of the year, such as the Pixel 2. It means that they will come to market with Snapdragon 835, a processor that are already available on mobile phones that were announced in February, for which are now much cheaper. The Pixel 2 will come at a high price that does not match the power they offer with respect to other devices like the LG V30, which we have already had a chance to try. Do not forget that a mobile SoC is much more than it seems. Not only does it ensure the fluidity and power of a smartphone, it also manages the camera or connections, especially wireless ones, more widely. That is why with each new generation of chips we have better Internet connection speeds.

The consequences for the WannaCry ransomware continue to be noticed. The global attack that occurred in May 2017 has triggered an increase in spam emails that offer fake data recovery services. The WannaCry virus was the most dangerous computer attack that has occurred in our country to date, with Telefónica being the main company affected. But not the only one. Users with devices with Windows and Android operating systems installed are white. This hacker attack encrypts the data of each terminal, and requests the payment of a rescue in order to be able to return the files to you. A situation that has led to the proliferation of false services that promise the recovery of data through spam and phishing campaigns. More than 200,000 computers worldwide as well as Android mobiles have been victims of WannaCry. The chaos and impatience to get all our information back is being used by hackers as an opportunity to dramatically increase the number of spam and phishing emails by offering fake protection services to deal with this and future computer attacks. Not only that, they also promise to retrieve the files along with courses and seminars for Internet users, which are not true. During this time, spammers have developed a scheme to send fraudulent offers in which they incite to install software updates on the affected computers by WannaCry. "However, these links redirected users to phishing pages in order to get personal information from the victims," said a security company official Kaspersky Lab, which has produced the report Spam and phishing of the second quarter of 2017 '. WannaCry Encryption Increases Fake Services Offering Data Recovery In this document they warn that in the last months has been detected a notable increase in the number of emails to corporate networks. Disguised as company emails, authentic signatures, logos and even bank information included'exploits'required to get mail passwords, FTP and other elements. They are mainly aimed at financial objectives. Another trend observed is the increase in the number of mass mailings with Trojans with sender of non-existent distribution companies. Inside contained shipping reports with data of non-real deliveries with those who sought to infect computers and steal personal data. The Emotet banking trojan, first detected in 2014, has been one of those used. "The use of WannaCry in mass mailing shows that cybercriminals are very alert and react quickly to international events," said Kaspersky Lab spam expert Lab Dayra Gudkova. As for the countries targeted by these spams with false data recovery services, Germany is at the top (12.71%), followed by China (12.09%) and the United Kingdom (9.11%). Our country is ranked 12th (2.01%). For its part, Vietnam has been the country with the most fraudulent mails sent (12.37%), above the United States (8.65%) and China (8.96%). Spain is in the 15 position (1.52%). The banking sector, payment services and online stores are still the main targets of phishing attacks. Have you been a victim of spam and phishing emails that offer fake data recovery services?

Good Morning try to connect visible because if you are in anonymo it is as if you did not have online to me once I pass but at the same time it was automatically fixed if it does not fix my recommendation is to wait was what I did

Lenovo was one of the last companies to present their innovations at IFA 2017, one of the biggest technology fairs of the year, and their bet pointed in three directions. On the one hand its mobile section starring Motorola, where we could see their new family of mobile and gadgets (the Moto Z2 Force Edition or Moto X4, as well as the Moto Mod 360º camera). On the other hand we have the bet for entertainment, where they emphasize their windows of mixed reality of Windows and the holographic hull to enjoy Star Wars Jedi Challenges. On the other, their new laptops of the Yoga family. We have been able to tinker with Lenovo's flagship device, Yoga 920, and we bring you our first impressions of this convertible with Windows 10 and Intel processors of eighth generation that not only seeks sr efficient and powerful, but wants to accompany us wherever we go regardless the task we want to accomplish. Lenovo Yoga 920 with Intel Core 8th Generation Like the Ultrabooks and other convertibles introduced at IFA 2017, the Lenovo Yoga 920 mounts the latest in Intel processors. It is the eighth-generation Intel Core family that is currently only available for this type of device (Intel's plan is to progressively launch other types of processors for different uses and needs) and has two very specific objectives: efficiency energy and uncompromising performance. The eighth-generation Intel Core i7 processor will be attached configurations of 8GB, 12GB or 16GB of RAM and an SSD that can be 256GB, 512GB or 1TB of capacity. At the connection level, we find two Thunderbolt 3, a USB 3.0 port and a DisplayPort port. Not bad for a convertible, although if we want to connect keyboard and mouse and an external display, we will have to do with an adapter. Although it is more powerful than the previous generation of Intel (40% according to the manufacturer), the energy consumption is very contained, which allows, with both configurations of the screen, Yoga 920 exceeds 10 hours. Specifically, if we opt for the 4K panel, the Lenovo Yoga 920 will give us about 10 hours of battery life. If we choose the FullHD screen we will have something more than 15 hours, not bad considering it is a team thought to take us everywhere thanks to its 1.37 kg. In theory, all this is very good, but in hand, the Lenovo Yoga 920 feels very light and sturdy. As you know, it is a portable convertible, which means that we can flip your screen to use it in different positions, also as if it were a tablet. And the hinge, the loose spot of many convertibles, is once again one of the most cared aspects of this 920 Yoga. Reliable hinge As if it were a watch strap, the hinge of the Lenovo Yoga 920 has different anchor points that rotate to allow us to put the screen in the position that we want. The light conditions in which we could test the Lenovo Yoga 920 cause the screen to shine with its own light, as it was a space with dim light in which the contrast of the screen behaved very well. The angles of vision are also generous, something fundamental when we talk about a team that we will not always use front due to its convertible condition. On the other hand, the screen is most attractive thanks to some frames that, fortunately, are becoming more and more narrow. At weight level to carry the computer as if it were a tablet, the Yoga 920 responds, but we did not like too much that there is a small gap between the screen and the body in the part closest to the hinge. It is somewhat similar to the effect that Microsoft's Surface Book has when it closes. The angle of rotation of the hinge of the Lenovo Yoga 920 is what is and is one of the characteristics of its design, but it is something that could be improved in the face of new versions of the convertible. Lenovo Active Pen 2, Windows Ink and Cortana There are many ways to use the Lenovo Yoga 920. One of them is through Cortana and the new sensors that will allow us to order simple tasks to the AI of Microsoft at a distance, now, up to 4 meters. This is something that we will try in depth when the environment is propitious. What we could try is the quality of the touch screen, Lenovo's Active Pen 2 and Windows Ink with its 4,096 levels of depth. This type of pencils and electronic ink still lack to offer an immediate response because, however low the delay between our movements and what we see on the screen, when performing an action as everyday as writing, if the answer is not perfect, we notice immediately that something is wrong. Of course, you can see that the technology is evolving and the use of Active Pen 2 with Windows Ink is a joy. We can choose different profiles for this digital pen that will allow us to use the computer in another way. From drawing something to writing down anything in Edge, the Windows browser, everything works very well and is a technology that shows that steps are taken forward from year to year. We did several drawing tests in IFA 2017 and, although there was a work of art, it is interesting to use the computer in tablet mode to point what is simple and easy without having to flip the PC and use the keyboard. First Impressions of the Lenovo Yoga 920 If something works, do not touch it. That's what they should have thought about Lenovo and, therefore, have opted for a very conservative design compared to the previous generation, Lenovo Yoga 910 last year. However, the addition of the eighth-generation Intel processors is a big plus, especially for working with content at 4K. Intel wants us to create content and render videos in our Ultrabook, convertible or 2 in 1 without needing to opt for a team with a dedicated graphics and, for that, comes the eighth generation. However, it also arrives to make the new equipment more efficient and, although it is necessary to see how they will behave when we give them war in the face of the corresponding analyzes, on the paper and in the tests that we have been able to see, the new equipments do not behave anything wrong. The first impressions of the Lenovo Yoga 920 in aesthetic, functional and, above all, tactile, leave us good taste. The screen has correct viewing angles and responds well to gestures and the Active Pen 2. In addition, the hinge looks robust and is a team that, due to its low weight and size (despite mounting a panel of 13.9 ' '), is ideal to carry anywhere. Finally, you have to talk about the keyboard. It is the most controversial point of many teams focused on productivity whose keyboards have such a low path that their use requires an adaptation process. The keyboard of the Lenovo Yoga 920 follows the trail of keyboards with low travel, but it has a reason to be. Being a convertible, the idea is that, in tablet mode, you do not have a feeling too strange when you grab it and press the different keys. It is not the most comfortable thing in the world if we are going to write a lot, but it is a sacrifice that must be made in favor of other options. In short, in the absence of passing the magnifying glass when we can spend more time with the Lenovo Yoga 920, the first impressions we get are good. It is the same base of the previous model, but with a new heart that will have to be tested and, above all, a really spectacular screen.

as many of us told you that is because the map lasts long in loading the player leaves but is not present I recommend the solution that told you playboy

The technological fair of Berlin IFA 2017 is at its peak. At ComputerHoy.com we have shown you the most important news throughout the week, so it's a good time to focus on more concrete and curious things. One of the appliances that has caught our attention is the Movable Fridge from Panasonic, a motorized robot refrigerator able to move around the house on its own to bring you drinks wherever you are. This mobile refrigerator activates with the voice and accepts orders like "come to the salon" or "come to the billiard room". Imagine the Nothing is more annoying than being enjoying a tense football match or a chapter of your favorite series, and having to get up to go to the kitchen for a refreshment. Now you just have to call the fridge to bring it to you ... The Panasonic mobile refrigerator that brings you drinks has a series of sensors that allow you to dodge obstacles to get you where you are. He also uses artificial intelligence to learn the map of the house and thus avoid obstacles more easily. Of course, he also dodges people ... This robot fridge not only brings drinks, but also anything that fits in the fridge, from ice cream to fresh fruit or a good salad. It also has an equally useful second option. A compartment allows to store inside the dirty dishes of popcorn or nachos, to take them to the kitchen. Panasonic has not provided prices for this mobile refrigerator that brings you drinks, but it sure turns into a very coveted appliance for boxers and lovers of the ball-chair ...

The Chromebook initiative was born as a Google experiment focused on the world of education to become an option more than interesting also for professionals. While there is still a long way to go, the fact is that the arrival of the Google Play store to Chromebooks and other recent features, have given a push to these low-cost computers. One month ago, the future Chromebook feature of SMS Connect is known as a way to receive notifications of text messages on the Chromebook itself with the possibility of reading them, but not responding. Now we know more about this feature adding that yes, we can not only read these notifications but also answer them. A description of the SMS Connect functionality has been discovered in a text file of the latest version of Chrome OS: "This feature allows users to read and reply to text messages from their Chromebook. New SMS will appear as notifications. Read and reply to text messages on your Chromebook. " It should be noted that there are free external applications such as Pushbullet that already perform this function of notifications and response of text messages, which assumes that the possibility of receiving and replying messages on the Chromebook is also a future feature futurible for Chrome OS.

Again, Elon Musk has issued a warning about the dangers that can hide a misuse of Artificial Intelligence as well as the lack of control of it. This time it has gone beyond its previous warnings and has ensured that it will be responsible for triggering the Third World War. The founder of SpaceX and Tesla has used his profile on the social network Twitter to make these reflections high and respond to the words spoken a few hours earlier by Russian President Vladimir Putin. During a lecture to Russian students on the occasion of the inauguration of the school year, Putin gave a speech in which it affirmed that the country that leads the investigation in the field of the Artificial Intelligence will be the one that dominates the planet while offering " colossal opportunities ". Putin has stated that "AI is the future, not only for Russia, but for all of humanity." It comes with colossal opportunities, but also with threats that are difficult to predict, whoever becomes the leader will become the ruler of world". Statements to which Musk has not been able to pass the opportunity of answer affirming that the Artificial Intelligence will provoke the Third World War. Specifically refers to that could affect "a pre-emptive strike" that would ensure victory. He does not stay there. He claims that the potential dangers of this technology make AI "more dangerous than North Korea". It should be noted that this is not the first time that Musk warns of the negative consequences of Artificial Intelligence. One of the most talked about was the intense debate he had with Mark Zuckerberg, CEO and creator of Facebook, through social networks, shaping his different views on this technology.

Are you thinking of buying a new dron or renovating the one you already have? If the answer is yes, please note that TomTop, the global online store specializing in computers, electronics and gadgets, has a promotion to acquire DJI Mavic Pro, one of DJI's most prominent models. DJI Mavic Pro is a quadcopter with a compact yet powerful size. It is equipped with a sophisticated camera system. It has 24 high performance computing cores, a transmission system with a range of 7 km, four visual sensors and a 4K camera with a three axis stabilizer. The DJI Mavic Pro has a flight autonomy system to facilitate the flight. Thanks to its sophisticated sensors, it has the ability to see obstacles up to 15 m away, allowing it to fly at a speed of 36 km / h without blows or scratches. The battery gives you an autonomy of 27 minutes of flight. If you want to buy the dior DJI Mavic Pro, now is the best opportunity, because the TomTop online store has an incredible offer for you. And it is that, in addition to the dron, you will also take the Fly More Combo pack, which includes two additional batteries, a car charger, a carrying case and a multistation charge to recharge up to four batteries at the same time. To benefit from this offer, all you have to do is enter the eCommerce website through this link and enter the following code: LCXTTMAVIC283. With this coupon, instead of paying the 1,203 euros of the original price will only cost 959.76 euros. The company will send you the dron for free directly from your warehouse in China, without taxes or additional costs.

Taringa, the po[CENSORED]r social network of Argentine origin, has been hacked, so if you have an account we recommend that you change your password as soon as possible. According to a report published by The Hacker News, the platform has been the victim of a massive violation that has compromised the data of more than 28 million accounts. LeakBase, a service of notifications of this type of security violations, has gone the one in charge of giving the voice of alarm, alerting that has obtained a copy of the database hacked of Taringa. As they explain, there are a total of 28,722,877 records that include user name, email address and password of users. The Hacker News report notes that the algorithm used by the user data encryption platform, called MD5, is outdated since before 2012 and can be broken very easily. It is so weak that the LeakBase team has been able to decipher more than 93% of the records (almost 27 million) in just a few days. To check the accuracy of the database, researchers have contacted some random users by email indicating their password, and all of them have confirmed that it is effectively the credentials of their accounts. Since Taringa have confirmed the attack through a post and ensure that they are taking appropriate measures to protect users, such as forcing the reset of passwords for all accounts and use a more robust encryption system. The data obtained by LeakBase show the weakness of users when choosing a password, since the vast majority choose the most commonly used passwords. By analyzing the keys that have been filtered after the attack, the team has been able to verify that the most common are simple numerical series like 123456, 123456789 and 1234567890, the word "password" or names of soccer teams, among others traditionally habitual.

this happens because of the internet the internet that we Venezuelans have at the moment is very bad and there is heavy map that we last a lot to load and happens that type of problems

Chinese company Huawei has chosen the IFA 2017 framework to present its Kirin 970 processor, the successor to the Kirin 960 that is likely to carry its long-awaited Huawei Mate 10 and futuristic phones such as Huawei P11 and Huawei P11 Plus. We are talking about a proprietary processor that will mark a before and after due to its neural processing capability, and that will compete face-to-face with giants like Qualcomm, Samsung or Apple in the niche of mobile processors. The new Huawei processor has been the protagonist of IFA 2017 on Saturday, highlighting its unique advanced core technology and being the first processor to carry a category 18 LTE modem. There are many features to note from a processor that has been promoted to hype by the Chinese company with certain advances that we detail below. Among the features of the Kirin 970 that stand out is that it has been manufactured in 10nm process, an important step since its predecessor was manufactured in 16nm. What does this advance mean? For we are a processor that consumes less energy without quarreling with performance and is able to offer a higher processing speed, thanks to its 5500 million built-in transistors. The composition of Kirin 970 comes to be similar to its predecessor, now with 8 cores divided into four Cortex A73 at 2.4GHz and four Cortex A53 at 1.8Ghz. The GPU is a Mali G72 with ARM architecture that increases its cores from 8 to 12 for better graphic rendering tasks. But the biggest novelty of the processor is the inclusion of a neural processing unit, which is used for tasks of real-time image processing or voice recognition, to be able to maximize all these advances in artificial intelligence that are coming to short term. To conclude, and not least, this is a processor with support for dual cameras and LTE speeds up to 1.2Gbps.

Security researcher MalwareBreakdown warns that it has detected a new campaign that uses a false source update message to infect your computer with malware. The attack is aimed at users of Google Chrome and Mozilla Firefox, who reach malicious websites through malvertising, hacked portals or links in spam emails. According to their report, some compromised pages display an alert indicating that the website can not be displayed correctly because the Roboto Condensed font is not installed on the computer. In the popup window a link is provided to download such typography, which depending on the browser that will be used will be called Chrome Font Pack or Mozilla Font Pack, but in fact what it does is to download a virus. Once the victim clicks the Refresh button, the system downloads a file named chromefp60.exe or mozillafp60.exe. Then another pop-up window shows the steps you need to follow to install the suspected font pack. At the end of the process, the malware infects the computer, depending on the page it will be a Trojan, the keylogger Ursnif or a miner of Monero. The investigator explains that this attack can be found on legitimate websites that have been hacked by attackers, who have added the javascript code that modifies the site's display and displays the dialog to update the sources. In this way, when the visitor accesses the compromised portal, the script encodes the text so that it is not readable, as you can see above in the image. Of the three types of malware that installs this attack, the most dangerous is Ursnif, since it clandestinely records everything the user types on the keyboard and sends it to the attacker. In this way, cybercriminals can obtain the bank credentials and the password of all the services that the user uses

The death toll from Harvey's move to the United States has risen to 50, according to the latest information, although authorities continue to conduct search and rescue operations in the affected states, mainly in the Texas town of Houston. The phenomenon, which has left serious floods behind it, has left some 20,000 people missing and more than 32,000 displaced people are now advancing with sustained maximum winds of 50 kilometers per hour, making it again a tropical storm that is losing every time more strength. The hurricane, which has paralyzed Houston, the fourth most populous city in the United States, could become one of the most important natural disasters in American history. US President Donald Trump has called on Congress to approve a $ 7.9 billion ($ 6.6 billion) aid package to carry out recovery efforts following the hurricane.

A server is, in essence, a computer like any other, so it is important to pay attention to the tasks you will perform to choose the right components to mount your server, ensuring that the budget does not fire more than expected. Within the different types of components specifically designed for servers, it is possible to emphasize the section of storage. The storage system is one of the basic pillars for a server, since one of the main functions of any server will be to store the data that it receives from other computers or that users keep in it. Depending on the type of data that is stored and the needs of the traffic that will support that server, it is advisable to choose one type of disk or another. Obviously you will not need the same capacity and speed of access to the data a home server in which you save the familiar files or your private mail server, that the necessary performance in the server of a company with 500 users connecting simultaneously. What do the acronyms SATA, SAS or SSD mean? Acronyms, damn acronyms that hide the true meaning of things and make everything seem more complicated than it really is. We will unmask what the acronyms SATA, SAS and SSD mean! SSD (Solid State Drive) As you will know by now, SSD is a data storage technology that relies on non-volatile memory chips similar to those in RAM or USB flash drives, where data is stored by electrical impulses, rather than on a magnetic disk as in traditional hard disks or HDD (Hard Disk Drive). With no moving parts or writing heads, the SSD's responsiveness is immediate. For this reason, SSDs offer far superior performance than traditional hard drives. On the other hand, we find the acronym SATA and SAS, which unlike SSD is not a storage medium like SSD, but a connection interface that allows different data transfer rates at different transfer speeds. Therefore, it is important to differentiate between the storage system (SSD or HDD) and the connection interface for those storage systems (SAS or SATA) Serial Advanced Technology Attachment (SATA) It is one of the most po[CENSORED]r connection interfaces for storage being the most used in home storage systems and is the most common on the motherboards of personal computers and laptops as it offers a very balanced performance for this type of platforms . The SATA interface replaced the already obsolete Parallel ATA or IDE (Integrated Drive Electronics), surpassing its transfer rates, which went from little more than 133 MB / s to the 150 MB / s of the first version of SATA. Currently the third version (SATA 3) is used, with up to 600 MB / s. However, as we will see later, perhaps the SATA interface is not the most suitable for a high-performance server. The SAS (Serial Attached SCSI) This interface is probably the most unknown to the public since its use has been extended almost exclusively in the field of enterprise storage and massive servers, despite having a very similar development and close to SATA. As in the case of SATA, the SAS interface replaced the SCSI (Small Computer System Interface) standard present in most servers of the time, but insufficient for the enormous flow that required the proliferation of networked services and the increase of devices connected to the servers. The arrival of the SAS interface allowed higher rates of data transfer and connect more devices simultaneously. The SAS interface is also in its third version and has gone from a bandwidth of 3 Gbit / s of the first version (SAS-1) to the 12 Gbit / s of the current version (SAS-3) or the 22 , 5 Gbit / s expected for its next release (SAS-4). Differences between SATA and SAS It should be remembered that both SATA and SAS are connection interfaces that are integrated into a storage system (usually HDD). However, simply incorporating one of the two interfaces already conditions the characteristics and performance of that storage unit. If the SAS interface has a higher bandwidth to carry a greater number of data at the same time, it would be a waste not to use it with storage systems capable of running at a faster rate. Said and done! One of the main differences between hard disks using a SAS and SATA interface is that, while in the case of SATA, they usually spin at a speed between 5,400 and 7,200 rpm (revolutions per minute), on the disks they use the SAS interface does at speeds of between 10,000 and 15,000 rpm, substantially improving the final performance. Another major difference between SAS and SATA drives is the high price-per-gigabyte capacity ratio since a 15,000 rpm and 900GB SAS disk can cost around € 420 (€ 0.466 / GB) while that a 7200 rpm and 1 TB (1024 GB) SATA disk is currently around 45 euros (€ 0.044 / GB). Without taking into account the enormous price difference, both systems are very evenly matched in terms of capacities since, as already mentioned, the storage technology used for both interfaces rises on the same base, being able to find disks of up to 12 TB with SATA or SAS interface. With a higher transfer rate, SAS disks duplicate the cache of SATA disks, from 64 MB to 128 MB. In this way, the buffer is always ready to send information, and hybrid cache systems are sometimes used in which, in addition to traditional cache memory chips, NAND memory is also used to speed up the sending of data. In SAS drives data is the most important, so these SAS disks have better protection systems against data loss making them more secure and reliable. The connectors of the SAS and SATA drives are very similar physically, although there are some differences between them so that they do not lead to mistakes when connecting them so that you can connect a SATA disk to a SAS connector, but you will never be able to connect a SAS in a SATA. The compatibility of SAS with SATA and reverse incompatibility has a very simple explanation: to allow companies to amortize the units and SATA storage systems they already had - whose investment can be hundreds of thousands of euros depending on the size of the company - although this means less performance, while it makes no sense to connect a high-performance SAS to a SATA connector that limits its performance to a quarter of its capacity. SATA or SAS what interface is better? Speaking in terms of better or worse is not the most appropriate when talking about connection interfaces, as it would be like comparing a Formula One with an off-road vehicle. Formula 1 has no rival in the circuits, but it does not make sense out of them, while the SUV will not have a good result in circuits, but you can use it on any terrain. Depending on the use that will be given it will be more appropriate to use a SAS or SATA interface. If what you have in mind is to set up a home server or for a small business, perhaps a SATA based storage system is the best option. The SATA interface allows you a more than enough transfer rate and you can connect multiple disk drives on your server to get a considerable amount of storage space. One of the great advantages of the SATA interface is that it is widespread in the domestic environment, so it is easy to find motherboards, hard disks and SSD drives that use this connector at a price very affordable for any user or small business. That way, mounting a small server at home or in the office will be very easy and you can even use components you already had and, if you need an extra performance, you can choose to add an SSD to your server, or a unit especially designed for servers if what you need is greater reliability for your data. Because the SAS interface provides greater scalability, increased data security and increased performance, they are ideal for enterprise servers where they must be operational 24/7 365 days a year, as they are the only ones capable of supporting that workload efficiently and with a low failure rate. SSD with SAS interface, the technology of the future The advancement of SSD technology is unstoppable and while in the field of domestic consumption manufacturers optimize the production processes to offer greater storage capacity at a lower price, in the professional field manufacturers strive to deliver the highest performance offered by the SSD and join it to the virtues of the SAS interface. The first SSD units with a SAS interface can already be found on the market, but there is still a long way to go before replacing HDD drives that have so far monopolized this area. storage systems. However, at the pace of manufacturers' developments, it will not be many years before SAS-based SSDs are more affordable, which will mean the definitive take-off of the currently standardized SAS-4 standard, which will double the transfer rates offered by the SAS interface. This new increase in the transfer rate is quite logical considering the challenges for the exchange of information that implies the arrival of 5G and the standardization of fiber optic connections in homes.

Each time we have more present the acronyms API in the world of the technology But, you know what they are or what they consist? API stands for Application Programming Interface, in Spanish. Specifically, it is a formal specification on how one module in one software communicates or interacts with another. In other words, APIs are a set of functions and computer protocols that allow developers to create specific programs for operating systems, databases or communications protocols. In addition, in recent years, have joined several social networks, such as Twitter or Facebook, as well as other online platforms such as Google Maps or Wordpress. Thus, social media marketing has become something more trackable and therefore more profitable. In fact, APIs are valuable especially since they allow to make use of different functions already existing in other software. Thus, you gain in productivity. APIs fulfill their purpose as a template on which to develop software that is fully compatible with a service, system or application. But, what examples can we find of API today? For example, it can be very useful for developers of a program for Windows that connects to the Internet, since they do not need to include in their code the functions necessary to recognize the network card. Thus, a call to the corresponding API of the operating system would suffice. But we can also find more practical examples in our day to day. So, when we buy a movie tickets online with our credit card, most likely that website uses an API to send that information remotely to another program that checks that the data is correct. So, even though you see a simple check, there are many APIs that are working behind to make everything go well.

The IFA 2017 in Berlin is the place chosen by Samsung to present their new wearables whose main novelty is that they are submersible, holding up to 5 atmospheres deep and therefore allowing water training. In Computer Today we had the opportunity to make a first contact and brief analysis of the Samsung Gear Sport and Gear Fit 2 Pro, as well as get up close and personal with the new version of the Gear IconX wireless headset. With a circular and minimalistic bezel, the Samsung Gear Sport inherits part of the best of Gear S2 and Gear S3. On the one hand it recovers the size of the S2 with a Super AMOLED screen of 1.2 inches with resolution 360x360 pixels, but at the same time it has technical specifications of the Gear S3: dual core processor of 1 GHz, 768 MB of RAM and 4 GB of storage. The change in size is perceived especially in its weight: just put it, one notes that we are before a clock much lighter than the previous model. It also has a smaller thickness (11.6 millimeters) and has a somewhat smaller battery, 300 milliamperes compared to 380 mAh Gear S3. In this brief analysis and first contact with the Samsung Gear Sport we have not had enough time to be able to ensure if, as Samsung argues, this cut in the capacity of the battery does not affect the battery of the device thanks to the greater efficiency of the processor, something that we will confirm in the future analysis of the smartwatch.