Of all of the crazy things about our modern world, I’ve always been most amazed by the way that so many gadgets have become normalized to the point that society completely depends on them, yet only a tiny percentage of people have any idea how those gadgets function. For the most part, people don’t even know how their dimmers work, much less how their laptop accesses the internet. Of course, part of how our society works is by having individuals specialize, and then share the benefit of their knowledge (for a price). Just for the sake of being well-rounded then, here’s a little information about how your hard disk drive stores information.
Inherent to your hard drive’s ability to store information is the physical concept of magnetism. You’ve probably fooled around with magnets some, and may have even done that experiment in school where you rub a magnet back and forth on an iron nail, effectively magnetizing it.
Magnetism has been harnessed by humans for a long time. A rather simple example is in the common junk yard, where large magnets are used to pick up large piles of scrap metal.
A use that is just as prevalent but less understood involves sending messages. Whether or not something is magnetized can imply information. Because computers store information using binaries, binary code can be matched to magnetized or not-magnetized microscopically small pieces of metal.
In your computer’s hard drive, these “pieces of metal” are actually magnetized areas embedded in the hard drive’s circular plate or “platter.” Each area can be independently magnetized (to store a 1) or demagnetized (to store a 0).
The platters are by far the most crucial aspect of the hard disk drive. They are generally made of glass or aluminum that is then coated with a thin layer of metal that can be magnetized or demagnetized. Smaller hard drives have only one platter, while larger drives could have entire series of platters staked on a central spindle with a small gap in between them. Platters need to rotate extremely quickly (up to 10,000 revolutions per minute) for the read-write heads to access the information stored on them.
Once the 0’s and 1’s are stored, an arm mechanism moves a tiny magnet (called a read-write head) back and forth over the platters to either record or store information and act as a link between the hard drive and the rest of your computer.
Regardless of how many platters there are, there will always be two read-write heads for each platter. One is designated for reading the top surface of the platter and the other is designated to read the bottom surface. The read-write heads are mounted on an arm that can move from the center of the drive to the outermost parts. The read-write heads never touch the platter; there is always a layer of fluid or air maintained between them, at least in a functioning drive.
That’s all for now, but here’s a fun fact: magnetism is an excellent power to harness for computer storage because even when the power is shut off the data continues to be stored.
In 2016, big data spending and the growth rate of investment in the big data industry is expected to hit an all-time high.
According to public sector IT distributor immixGroup, civilian big data spending could max out as high as $2 billion this coming year. Coupled with the defense sector, an annual total of $3.6 billion could be spent on big data by the US alone.
“Big data” generally refers to extremely large data sets that are too massive to be run through traditional data processing applications. With the right IT equipment, the data can be analyzed computationally to reveal useful trends and associations, especially in business/human behavioral contexts.
Big data is commonly associated with web behavior and social network interactions, but more traditional data (regarding product transactions, financial records, etc.) also falls into the category of big data.
Big data can also be sorted into unstructured and multi-structured data.
Unstructured data derives its name from its disorganized nature and the inherent difficulty of inputting it into any pre-defined model. Often unstructured data comes in the form of text, whether it be metadata or a Twitter tweet.
Multi-structured data comes in many forms and is created by non-transactional systems such as machines, sensors, and customer interaction streams. The variety of the systems from which it is created makes it extremely expensive and difficult to use.
In 2013, Gartner estimated that 85% of the Fortune 500 will remain unable to exploit big data through 2015. The current velocity at which data is created and the diversity of its many forms present an unprecedented problem for businesses and government agencies alike. The information is there, and it is useful, but how to sort through all of it remains a largely un-cracked code.
That said, the U.S. federal government is on the case. The amount of information that federal agencies must collect, store, process and manage is, of course, unimaginably large, and due to the government’s surprising disparity of big data talent, the private sector is getting involved.
Global IT company Unisys Federal recently sponsored a survey that found that 46% of respondents (all IT managers of US federal agencies) “plan to increase their use of third-party consultants and contractors for big data initiatives in the coming year.”
Considering the U.S. federal government now needs to take charge of exabytes (bytes in the quintillions) of data, those 46% might be onto something.
The movement towards implementing big data analysis has actually been a two-steps-forward, one-step-back type progression.
In 2012, federal spending attributed to big data topped out at $832 million. By 2013, that number had fallen to $693 million. 2014 saw gains again, with federal spending launching up to $1 billion.
Some analysts believe that big data for private and public sector use could reach as high as $3.9 billion by 2017 and $4.2 billion by 2018.
Big data analysis has a lot of ground to cover, but clearly money and expertise (at least in the private sector) is not in short supply.
Present day, Information technology is the main purpose of applications in computers and telecommunications, which help to store, retrieve and transmit the data. Almost all the industries are tied up with the information technology. The computer, software, electronics, semiconductors, internet, engineering and many others industries used information technology. Information technology has helped humans to store the data, retrieve it .The information technology has three definitions in three categories. It is the technique for processing, the application with the use of statistical methods, the use of mathematics for decision making and the use of computer programs for simulation. The Information technology was distinguished as pre mechanical, mechanical, electromechanical and electronic phases. The electronic phase began around 1940.
Information technology in present day and current generation
The current world information technology is used in almost all the fields. Right from the day we get up till we sleep. Information technology had made simple alarms which wake up a man. So that he does not get late. The mobile phones which we use are a part of electronic systems which use chips which are a part of information technology. We communicate each other with mobile phones without which life is really difficult for communication. It made the communication simpler with messages and other applications which are developed like whatsapp, etc. People all round the world can be connected with each other with social media like face book, LinkedIn and twitter. Not only a person can speak with each other, but they can even see each other with the help of information technology.
The GPRS system which are placed in cars which provide directions, made driving simple and the driver need not worry if he don’t know the route. The mobiles also have the direction telling applications and they even show alternative routes for their destination. The storage of data and retrieving the data is also simple and can also be carried with the person. Simple pen drives and data cards have made this simple and have replaced bundles of papers and files. Laptops which can be carried anywhere and can be used anywhere made life easier.
Today’s generation kids also use the technology. They use touch pads or ipad for playing games. Students can get the information of any topic in seconds by using the search engines and can prepare any topic easily. The use of information technology has its application even in cooking. Videos which are available, one can easily cook any dish. Even in automobile sector the use of information technology plays an important role. Chips and few data transmitters are used in automobile sectors. The use of micro chips for storing data and giving instructions and programming a robot, had made the robots perform the task quickly and in less time. The robots can perform complex tasks in few hours and this decreases human efforts. Online banking services helped public and also the employees, funds can easily be transferred and any bills can be paid in minutes. There is no need to wait hours in the bank or billing payment centers.
So, information technology has an important role in many industries and made life easy.
Android is an operating system which is Linux based. This operating system is especially designed for mobile devices which are touch sensitive, like tablets and smartphones. With over 700,000 applications to choose from, Android is known for its game applications. Here are some of them:
This is a digital game book of Fighting Fantasy. It is an adventurous journey in which you can win by choosing the right path and equipment, as well as avoid mishappenings and traps. You can download the free trial version from play store. The full version can cost you around $4.99.
2. Real soccer
Soccer is back again. You can even join David Villa to experience the best simulation on Smartphone. With enhanced animations, graphics, Bluetooth multiplayer as well as advanced management mode, you can enjoy classic soccer experience on real soccer.
3. The Bard’s tale
Released in 2004 as a PC Game, Bard’s tale is now available for smartphones, thanks to Android. It is a funny game. You are the Bard, through a magical song you can add more characters in battle and strengthen your party to take revenge on your enemies. This game is however not for free, you have to pay to download the mobile app.
4. Burn Your Fat With Me
It is available as a fitness application in Android store. This game uses a doe-eyed anime female character to acknowledge and motivate you to play the game by giving information about press-ups and sit-ups. To advance in the game, you have to clear fitness goals like push-up or sit ups in a given time.
5. Devil’s Attorney
This game is a turn based game which is actually set in the late 80’s. Here, the user plays the character of a defence attorney, Max McMann who is rich on charm but low on moral fibre. It is a paid game which is different from any android game.
6. Beastie Bay
In this game, you have to capture the critters, treat them as friends and train them to fight battles for you. Each critter has some strength and weaknesses. You have to analyse them to get benefited in the war.
7. Razor Salvation THD
You are a commander in this game and you have to fight for your home town. The responsibility of saving the planet lies on you. Although a Tegra exclusive gave, it may even land on other devices soon.
8. Swing Shot
By playing this game, you will surely be able to sharpen your eyesight by picking up the gauntlet and repairing the worst offenses! It is not really like a game.
Apprentices at Hero institute are striving to succeed in Mori’s final test. Around this institute there are magic bombs, insects, monsters and so many disasters. You have to help the apprentice to survive in the final test.
PC games are an exciting way to make use of the time when you get bored. The games are considered to be an excellent solution for killing time as they are very enjoyable and usually have a linear game play. However, not all PC games are enjoyable as there are some PC games which are utterly frustrating, but you still feel an urge to play them. Some of these games are very difficult from beginning to end, but you still develop a kind of love and hate relationship with the game titles. Although you know that a particular sequence is very frustrating yet you love to undertake the challenge time and again. Some of the most frustrating PC games are –
1) The Walking Dead
The Walking Dead is a point-and-click adventure game that tests your reflexes a little bit. The gameplay is not very difficult, but the events that unfold in the game will leave you frustrated for sure. Some of the actions in the game like death of your fellow survivor or you getting hurt is beyond the control of the user and this can be really frustrating for some. On top of that there is no God mode.
2) Dark Souls
The dungeons in Dark Souls are full of traps that are almost impossible to detect. You only realize the trap when you suddenly burst into flames or crushed very badly. Making these mistakes and learning from it is probably the most desired aspect of any game. You can read through thousands of guides but still crossing the dungeons is a very difficult task, but when you do you feel overjoyed. If you’ve laptops, then you can enjoy the games at ease.
Brain is easily the most recommended game but the constantly changing gameplay mechanics can really frustrate anyone. The cryptic storyline does not help matters too. It does take a lot of time and huge brainpower to master Braid but when you complete the game you will feel like you have gained entry into an Ivy League college.
You thought right! This is yet another zombie game wherein you start in a zombie wasteland and have to search for food and weapons. Once you get killed you need to start over with, well, nothing. The game is addictive but it is very difficult and you will feel like crying when you have to start over again with nothing.
5) Cart Life
In Cart Life you play the role of a street vendor and go through all the possible difficulties in life. This side scrolled allows you to play either as a coffee vendor or a newspaper vendor and the gameplay is quite challenging. The theme is a bit dark but the game successfully reflects on the rat race prevalent in the working class.
6) XCOM: Enemy Unknown
XCOM is one of the challenging game titles on PC and it’s all about kicking alien butt. You need to assemble a squad to take on the aliens and equip them with the latest weaponry. However, you must be alert enough in certain situations or else you will face ‘Game Over’. This is really frustrating, but it can be rewarding too when you succeed.
7) Super Meat Boy
Yet another good old side scroller game where you have to take control of a slippery boy and navigate him past the cliffs and different obstacles. A quick thumb and precision timing is what you require to ace this game. A course in anger management will be helpful as the game is sometimes a bit frustrating due to the many hundred deaths you will die during the course of the game.
The above-mentioned 7 game titles are probably the most frustrating ones, but you will simply love playing them over and over again.