When you buy a data storage, or build your own, say, a RAID, you naturally want it to work fast. I have never met a single person who does like the slow drives.
However, often the real-life read/write speed of a device is somewhat different from the values advertised by a vendor or in case of DIY device from the design-time speed estimation.
There are many reasons why a device performs slower than expected. For example, when analyzing NAS performance, you should take into account the throughput of network to which you connect the NAS. For the external drives connected to a PC via USB, the overall performance will be limited by USB bus which at least five times slower than the slowest hard drive.
However, before you set to find out why your data storage device doesn’t provide the maximum performance, let’s learn how to measure the performance.
The process of measuring various performance characteristics of a data storage device is called benchmarking. The main measured parameters are:
- linear read and write speed – speed at which a device can read or write sequential blocks of data;
- access time – time for which a device spits out the first block of the requested data;
- Input/Output operations
One of the most saturated and fiercely competitive emerging markets in the world today exists within cloud computing, specifically consumer/personal cloud computing.
There are a lot of different descriptions of what the personal cloud is, to me it means online storage, synchronization and streaming. Specifically, putting your data online, accessing it across all your devices and sharing it with others.
It’s understandable that there are so many companies jockeying for position within public cloud provision, it’s an exciting place. To be at the heart of a $2 trillion (according to market research guru’s Gartner) consumer spend on content, devices and associated services makes a lot of sense. However, despite there being such excitement about this sector (venture capitalists continue to pour millions of dollars into start ups) I think the days of the traditional cloud model are numbered, here’s why…
The amount of information we store online each year doubles, termed Zuckerberg’s Law by the press in reference to the prophetic statement made by Facebook founder Mark Zuckerberg back in 2008. As we store more music, pictures, docs and movies online than ever before we consumers are developing an insatiable appetite for more and more
The single-board computer has been developed by the Raspberry Pi Foundation – a charity founded to promote basic computer science education. It marks a revolution in science teaching as it can easily be adapted to create a number of diverse projects, teaching students valuable computing skills.
This mini-PC uses a Broadcom BCM2835 system on a chip (SoC), including a 700 MHz ARM1176JZF-S processor and comes in two models both having 256 megabytes of RAM: the Model A which costs $25 and Model B which costs $35. Model B has two USB ports and an Ethernet port while Model A only offers a single USB port.
Software & Operating System
The Raspberry Pi uses a Linux-based kernel operating system, Debian, by default. However, Iceweasel, Calligra Suite, and Python are being planned to be incorporated into the device. Video apps use OpenMax, 3D apps use OpenGL ES, while 2D apps use Open VG. With more and more inventors creating Raspberry Pi projects the number of software and operating systems are set to increase.
What makes it stand out from the rest of the commercially-available computers?
• Size and Portability
Its physical area measures 3.370 in x 2.125 in and
According to a report from the Bureau of International Recycling, the Environmental Protection Agency and The Economist, the average person in the US uses 5.57 trees per year.
Time magazine reports that a single office worker can use 10,000 sheets of copier paper annually.
And yet, the reliance on paper has been found to not only be primarily habitual rather than necessary, reducing its consumption has actually been found to be beneficial.
This has driven businesses and consumers alike to consider ways to reduce their paper consumption.
Using technology to replace or reduce paper is applicable both in the home and in business, and the tools, techniques (and price tags) vary depending on the need, current state and future goals.
To begin, the easiest first step is to simply skip the paper altogether. Eliminate the need for paper right at the source by saving important documents to PDF, using electronic note-taking tools like Google Notebook , and simply not printing if it is not absolutely necessary.
The next step for the home is to cut back on the paper clutter. With your basic internet connection and a few spare minutes you can make the switch to electronic billing. Many
The promise of big data lies in researchers’ ability to mine massive datasets for insights that can save lives, improve services and inform our understanding of the world.
These data may be generated by surfing the web, interacting with medical devices or passing sensors. Some data may be trivial, but in many cases, data are deeply personal. They can even influence our insurance premiums or the price we pay for a product online.
When planning a study, data scientists need to balance their desire to uncover new knowledge with the privacy of the people whom the data represent.
“The science of understanding human behavior, health, and interactions is being transformed by the ability of researchers to collect, analyze, and share data about individuals on a wide scale,” a team of Harvard University researchers wrote in a July 2014 paper, “Integrating Approaches to Privacy across the Research Lifecycle.”
However, the paper continued, “a major challenge for realizing the full potential of such data science is ensuring the privacy of human subjects.”
Initially, researchers believed that anonymizing data–erasing the names and replacing them with arbitrary identifiers–was enough to protect the identities and personal information of those who had agreed (knowingly or unknowingly) to contribute
Three years ago, the serene Tokyo bedroom community of Hanna was shaken by a series of grisly crimes. Four pre-teen girls were abducted, molested and mutilated in a serial killing-spree The New York Times described as so “un-Japanese.” But the perpetrator, who had sent bone and teeth fragments to the grieving families, couldn’t have been more Japanese.
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The murderer enticed the children to his six-mat in Saitama, then molested and murdered them, recording the gruesome details of his deeds on the hard-drive of his computer.
When police finally caught up with Tsutomu Miyazaki, they found the 27-year-old living in two realities. By day he was a sullen apprentice at a local print shop. By night he lived out the fantasies he had internalized from avidly watching his collection of more than 6,000 slasher videos and pornographic manga, or Japanese comic books.
In defense of his warped client, Miyazaki’s attorney claimed that video and reality had merged; Miyazaki couldn’t tell gory fact from gory fiction. After Miyazaki’s much-publicized trial, one thing was clear: A new generation of anti-social, nihilistic whiz-kids had
The hacker tourist ventures forth across the wide and wondrous meatspace of three continents, chronicling the laying of the longest wire on Earth.
In which the hacker tourist ventures forth across the wide and wondrous meatspace of three continents, acquainting himself with the customs and dialects of the exotic Manhole Villagers of Thailand, the U-Turn Tunnelers of the Nile Delta, the Cable Nomads of Lan tao Island, the Slack Control Wizards of Chelmsford, the Subterranean Ex-Telegraphers of Cornwall, and other previously unknown and unchronicled folk; also, biographical sketches of the two long-dead Supreme Ninja Hacker Mage Lords of global telecommunications, and other material pertaining to the business and technology of Undersea Fiber-Optic Cables, as well as an account of the laying of the longest wire on Earth, which should not be without interest to the readers of Wired.
Information moves, or we move to it. Moving to it has rarely been popular and is growing unfashionable; nowadays we demand that the information come to us. This can be accomplished in three basic ways: moving physical media around, broadcasting radiation through space, and sending signals through wires. This article is about what will, for a short time anyway, be the biggest and best
Will Leitch, senior writer at Sports On Earth, culture writer for Bloomberg Politics, contributing editor at New York magazine and founder of Deadspin, is doing his yearly fill-in for Drew Magary on today’s Thursday Afternoon NFL Dick Joke Jamboroo. (Here is 2011’s version, and here’s 2012’s and here’s 2013’s.) Leitch has written four books. Find more of his business at his Twitter feed and his official site.
In 2012, actor Rob Schneider, famous for something or other, spoke to a California television station about AB 2109, a California bill that required parents to get a physician’s approval to opt out of vaccinating their children (something no sentient physician would ever approve). I only came across this interview recently. It is amazing.
You can almost follow along with Schneider’s browser history as he continues to ramble on; there’s the mom message board, there’s the InfoWars THINGS THEY DON’T WANT YOU TO KNOW thread, there’s the blog of the doctor with the degree-by-mail who is the only one willing to tell parents the truth. You can tell Schneider spent all night preparing for this interview, jotting down the words he wanted to emphasize, “efficacy,” “toxicity,” “Nuremberg laws,” “forced sterilization.” He even ends
Here are five windows operations that you can use on some occasions with windows or associated software.
1 – Open new links in brand new tabs on Windows Internet Explorer
If your mouse has three buttons – then use the middle one to open new tabs. Hover the mouse pointer over the link and press the mouse wheel to open up new tabs. All you need to do is place the mouse pointer over a link and then press down on the middle mouse button (the mouse wheel).
The middle mouse button is able to roll forward or back, however, it is also able to be pressed down and clicked just like a button. If you do this on a link then it will open up that link in a new tab. This is a lot quicker than pressing right-click and clicking on “open in a new tab.” It is an easier way to research certain items by simply clicking in order to open new tabs.
If you are feeling the super lazy you can hold CTRL and press Tab to scroll through your tabbed windows – or you can even hold Alt and press Tab to see a screen of windows – which
4G finally goes live in the UK on the 30th of October heralding a new dawn of super-fast internet for Brits. After heavy delays caused by legal threats between the networks and legal threats within the industry, Orange and T Mobile’s owner, Everything Everywhere, has been granted permission by Ofcom to plough on ahead with the launch of the first LTE network on British soil over their existing 2G spectrum.
As part of the deal Everything Everywhere has been forced to sell off a chunk of this to Three Mobile so that they don’t have monopolistic control over the new technology. Next year, the other networks will get their pick of the airwaves as the government prepares to sell of the 4G spectrum. Unfortunately, however, Apple’s iPhone 5 will only work at full speed on the old 2G spectrum that will be available from EE and Three. If you’re an iFan, then you’d better make sure your brand new iPhone is on one of these providers.
The platform for 4G services will only be available through the new “EE” brand so even T Mobile and Orange customers won’t be able to get the highest speeds unless they transfer their 4G ready pay
Cloud computing not only transforms home computing, but the way we work and live. If that sounds overblown, consider how working from home and consuming entertainment have changed over the last few years. And the rise of the ‘Internet of Things’, which will co-ordinate internet connected devices, can make your home life more relaxing and enjoyable.
There are already lots of advantages to embracing cloud computing in your home, whether it’s for work, pleasure or managing your household.
Cloud Storage for the home:
One of the big early selling points of cloud computing has been the availability of cheap, plentiful storage space for photos, videos, work documents and anything else you can think of. Cloud storage providers include UK-based Memstore, along with U.S companies such as Dropbox, Amazon, Apple, Google and Microsoft.
It’s important to check out the various options and not just sign up to the most familiar brand names, as costs can vary depending on the storage needed. And in the UK it’s also well worth considering a UK-based provider like Memset, as they’ll be fully-compliant with UK specific laws and regulations, which isn’t the case for businesses based elsewhere.
Backing up anything valuable to you, whether its photos of your family,
If we look few decades back, it was almost impossible to think of working with a computer without any proficiency of knowledge about it. Gradually, the developers made it simple by making use of a graphical operating system. Now, it is simpler yet by the invention of Raspberry Pi, it has been developed by a charity called Raspberry Pi Foundation. It is not more than the size of a credit card. The feature which makes it genuinely special is its ‘ease of use’, especially for the beginners. Another important factor is its price, which is either $25 or $35, depending upon the version. The price is good news for them who can’t afford to buy a usual desktop.
These days computers are important, as these have become important means for communicating, be it for business purpose or some personal need. We could assure you that Raspberry Pi fulfills the basic needs of all classes of people. However, you need to understand one thing clearly, from the moment you take the circuit out of the package, do not expect things to happen automatically. If you do not know how to work with Raspberry Pi, land up on Raspberry Pi’s website for online
For most of us these days, using a computer has become a daily occurrence, so much so that many of us can’t imagine life without it. Completing work projects, checking correspondence, interacting socially and shopping online have all become part of our everyday existence, but not everyone has become part of the Digital Age. There is one significant group in our society which has been left behind by events, and it’s perhaps time to include them.
A significant number of the older members of our communities have little or no experience of computers, and will not be aware of the many benefits that regular internet usage can bring. In an era when we are encouraging young children to find their way around the web and to become increasingly au fait with everything computers can achieve, it seems a shame that we are neglecting those at the other end of the age scale.
Those who were born in the 1980s and beyond have grown up in an era of technological innovation, and are therefore better equipped to understand the many gadgets and gizmos that have appeared on the shelves of our stores ever since. Although there are plenty of older people who know
For the uninitiated, cloud computing is basically computing over a remote network of servers in one location securely accessed by various signed up individuals and organisations. The data held on these networks are securely held and are able to be accessed by various people working on the same project. In a nutshell, it is like a global hard drive. Rather than having to carry USB sticks and email documents across time zones and locations, all the people working on a particular project can have 24/7 access to the various bits of data from different contributors going into that project. Initially, this all might seem very disruptive to the print industry. However, cloud computing poses a number of benefits and companies in the field of print are learning to adapt.
Firstly, it is speeding up the production process through real time collaboration. Collaborators no longer have to send designs back and forth but share information over the cloud, making changes as and when necessary.
Secondly, it allows companies in the industry to improve their offering to their customers and clients. For example, products can now be tailored to meet specific low number orders as cloud computing reduces the cost of producing print goods
The internet has changed the way we do business and a website is an essential part of any company. Whatever your business is, the internet is the easiest way to let the world know about your services. From multinational firms to small one man bands, if you don’t have a website, then you are losing out and somebody else is taking your potential clients. When you start a website, the first thing that you will need to decide upon is what you wish the address of your site to be. Websites all have an address and these are known as domain names. Choosing domain names is quite important as this is generally how people will find you and sometimes judge your worth before they even look at your site.
A good idea is to try and make your domain name close or the same as the name of your company or the service you supply. For example if your company is called Hats With Tunes and you sell hats with built in radios you might want to choose a domain name such as hatswithtunes.com or radiohats.com. This way people browsing the internet can see straight away what your company provides and
Any hidden web page object that is used to track visitors without being clearly visible is known as a web bug. They are invisible in order to covertly track a web visitor. If the object was visible, it would get in the way of the page, make visitors suspicious and probably be blocked. Scripts, iframes, images and other objects are used to create web bugs. The images and objects used generally don’t have any borders and are transparent though sometimes they merely blend into the background. The elements of web bugs are downsized to such a degree that the human eye simply cannot see them.
In addition, their tiny size means that their transfer rates will be all but unnoticeable. Visitors are tracked using cookies, IP addresses, header information and much more. Although web bugs may only track the visitor’s current page, there are bugs capable of going through the whole browsing history of an individual. You should not confuse web bugs with the software kind which describes an error, these bugs are deliberately created in order to track visitors.
Why Are Web Bugs Used?
As you might suspect, the whole point of creating web bugs is to improve the level of information
In the field of education teachers constantly seek creative new ideas to make the classroom more productive. Modern technology has long been a resource for up-to-the-minute classroom innovations. With each new technological tool, however, there are some questions as to its classroom appropriateness or effectiveness. Tablet computers are no exception.
Educators have been using computers in class for decades now. Schools have whole computer labs with which to teach students the basics of computer use. Computers quickly became more of a learning tool than a class subject and schools across the nation have put desktop computers in each classroom. But providing each student with their own desktop is ridiculously inefficient, though the benefits are the stuff of a modern educator’s dreams. Laptops solve the problem of space and size, but are still cumbersome. Happily, the latest generation of computers, tablet computers, are even more streamlined, lightweight and portable, making it feasible to assign one to each student in a school.
WHAT’S THE PROBLEM?
Predictably, many people question the suitability of tablet computers in the classroom. A tablet is only a limited resource without internet access. But many people are concerned about giving elementary to high school students such easy continuous access to
It doesn’t matter if you need to launch a new product, write a book, or design a new website – at the end of the day, everything breaks down into tasks that you need to complete. we all have different systems how to make sure that we get things done – here are three tools that help us do it.
The Pomodoro technique was developed by Francesco Cirillo back in the 80’s, and is very simple:
1. Choose your task and work on it for 25 minutes.
2. Rest for 5 minutes.
3. Rinse and repeat 4 times, then take a longer break.
This technique is an excellent way to make sure that you are focused on one specific task at time. Knowing that you have a limited length of time to work on your task before you take a short break, makes it much easier to avoid distractions like Facebook, email, or ‘just checking Cracked for a second’. The five minute break helps relax your brain, gives you the chance to get a fresh cup of coffee, or refresh your playlist, before you dive back into the task at hand.
FocusBooster is a desktop application that helps you use the Pomodoro technique with a
The IT market is saturated with professionals offering their services. Certifications are an absolutely necessary key to securing work in this market and having the most-up-to-date ones is of course extremely important! It can at times even compensate for a lack in work experience as it can show that we are skilled in the areas potential employers are looking for. On our journey of becoming more and more successful in IT, we need to know the cutting edge technologies to stay competitive.
Learning and expanding our resume makes us marketable and remaining up-to-date makes us more capable and valuable to our current or future employers. While many new professionals in the IT industry begin with the CompTIA A+ certification, working their way up from there to the Network+ and Security+ certifications from CompTIA, certifications vary depending on the chosen career path. For example, people in networking will be interested in Cisco certifications such as the CCNA certification or the CCNP certification. Others will want to expand their knowledge of Microsoft technologies with the MCITP certification yet others look for certifications like MCSE, VMware, PMP, CISSP, Oracle, CEH etc.
On our path of building our resume with these certifications we not only have
As a small business owner, you know that time is money. You simply do not have the time to devote to online marketing efforts that may or may not generate visitors to your website and convert them to customers. You have a finite amount of time to devote to online marketing efforts. Moreover, you need to see a return on the time investment when you allocate your valuable time resources to online marketing.
Most small business owners agree that internet marketing would benefit their business. However, with limited time available to learn the techniques of online marketing and even less time available to monitor successes that do not immediately translate into ROI, small business owners need a lean, mean initiation strategy to quickly and efficiently implement online marketing.
Six tips to help small business owners get started with internet marketing include:
Land that User!
The most important page of your small business website is the landing page, also known as the homepage. Your homepage must engage the user and compel them to investigate other pages within your site. Your landing page should not include all of the information about your business that you can stuff into one page. Instead, your homepage should give users
Recommendations are almost always paid heed to. When someone tells us about how beautiful a place is or how scrumptious the food at a restaurant is, we try to check it out ourselves. Not necessarily would we always agree with recommendations from friends and family, yet we are tempted to try them even if a particular thing does not interest us. Such recommendations are termed as social recommendations.
Social recommendations have taken a whole new form through the increasing popularity of web applications, such as shopping services and online sharing. In such applications, it is the interpersonal influence that is orchestrated to play a more important and critical role. Surveys say that 45 per cent mothers’ purchasing decisions are influenced by recommendations through the social media.
Smartphones and tablets have made web accessibility all too easy. These gadgets help people stay connected, entertain themselves and consume and access information, irrespective of the location. Facebook, Twitter, Google Plus, Foursquare, Tumblr and other social networks have shrunk the world. Almost all mobile application help you connect and socialise on these social media websites.
Here are some of the best social media apps and sites for exploring London.
A location-based social networking website, foursquare is fast becoming