What is QR Code?

Short for quick response code, a QR code is a type of two-dimensional (2D) barcode that can be read using a QR barcode reader or camera-enabled smartphone with QR reader software. A QR code is able to carry information in both the vertical and the horizontal direction, which is why it is called a 2D barcode. The QR Code is a registered trademark of Denso Wave Inc. in Japan and other countries.

QR Codes are popular with mobile phone users as the barcode can be used to store addresses and URLs. With a camera-enabled smartphone, users can scan the QR Code which has been coded to do things like display text, provide contact data or even open a webpage in the browser on the smartphone. The QR Code specification outlines data types, or services for this information. By using the standards it ensures QR Code software can correctly read the barcode. Some examples include:

• URL: (HTTP) encode the text of URL in the barcode
• Email address: (MAILTO) encode an e-mail address using the mailto URI
• Telephone numbers: (TEL) encode a telephone number with digits understood as a telephone number
• SMS: (SMS) encode an SMS shortcode or number by creating an SMS URI.

QR Codes can be printed and displayed anywhere a mobile phone user might scan the code such as in a magazine or displayed at a cash register. They can also be displayed online.
There are a number of online services that will generate a QR Code based on the information you specify when mapping the QR code.

What is Quantum computing?

First proposed in the 1970s, quantum computing relies on quantum physics by taking advantage of certain quantum physics properties of atoms or nuclei that allow them to work together as quantum bits, or qubits, to be the computer's processor and memory. By interacting with each other while being isolated from the external environment, qubits can perform certain calculations exponentially faster than conventional computers.

Qubits do not rely on the traditional binary nature of computing. While traditional computers encode information into bits using binary numbers, either a 0 or 1, and can only do calculations on one set of numbers at once, quantum computers encode information as a series of quantum-mechanical states such as spin directions of electrons or polarization orientations of a photon that might represent a 1 or a 0, might represent a combination of the two or might represent a number expressing that the state of the qubit is somewhere between 1 and 0, or a superposition of many different numbers at once. A quantum computer can do an arbitrary reversible classical computation on all the numbers simultaneously, which a binary system cannot do, and also has some ability to produce interference between various different numbers. By doing a computation on many different numbers at once, then interfering the results to get a single answer, a quantum computer has the potential to be much more powerful than a classical computer of the same size. In using only a single processing unit, a quantum computer can naturally perform myriad operations in parallel.

Quantum computing is not well suited for tasks such as word processing and email, but it is ideal for tasks such as cryptography and modeling and indexing very large databases.

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Optical Communication

Laser beams could soon become a viable alternative to radio waves for the transmission of large quantities of data over long distances through space. High data rates combined with little power consumption and low payload weight make laser communication terminals particularly interesting for application on-board satellites, space telescopes and scientific space probes. The first satellites equipped with laser communication terminals are already orbiting the Earth and more will follow in the coming years.

Laser-based data transmission has several advantages over conventional radio links. Due to the shorter wavelength, lasers can achieve higher data rates than radio signals for the same given aperture. Laser beams are inherently less divergent than radio signals and, therefore, require less power for data transmission. In addition, due to the higher efficiency and the low beam divergence of the laser beam, the laser link is a secure point-to-point connection; a bugging device would have to be in the immediate vicinity of the receiver, or would even have to be introduced into the beam, and this would terminate the connection immediately.

These advantages are particularly useful in space applications. Lasers would be effective when large quantities of data need to be transmitted between satellites. In addition, lasers would be highly functional when data has to be transmitted across vast distances. Among many other applications, laser communication is currently being considered for:
Data relay services for unmanned aerial vehicles (UAV): UAV inspecting remote areas can send their observation data to a data relay satellite in geostationary (GEO) orbit via an optical link.
Data relay services for satellites: High-speed laser communication can be used to replace an expensive network of ground stations needed to constantly receive low earth orbiting (LEO) satellites` data. The data gathered by the LEO satellites can by transmitted to a relay satellite in GEO orbit by means of laser communication. The relay satellite then transmits the data to a single ground station thus offering cost savings in operations and infrastructure.
Inter-satellite links between GEO satellites can be used to share resources and/or route traffic around a satellite network. They are also of interest for intra-continental communications (e.g. between satellites providing services throughout Europe with satellites providing services to Western Europe being linked to satellites providing services to Eastern Europe) and inter-continental links (e.g. between satellites providing services in Europe linked to satellites providing services to the US and / or Asia Pacific rim).
Deep space data transmissions: The amount of data being collected on exploration missions, such as those to Mars, and are increasing and will soon become limited by RF capacity. This increase may require on-board data processing and coding be introduced, with the resulting loss of access to the raw scientific data. In addition, an increase in the long data transmission times increases operation costs and severely reduces the time available for scientific tasks. By using optical links, the data rate can be dramatically increased, thereby allowing the raw scientific data to be received and resulting in the increased scientific value of future missions.

Figuring Base Salary For Information Technology Jobs

Before considering any type of job the first thing a person considers is how much it is going to pay them and if it will be enough to realistically support their lifestyle. There are several high paying IT positions that are available and pay very well. In order to figure up the salary for information technology related positions one must consider a few different factors.
The ever growing demand for information technicians, one would assume the salary would increase. Often this is not the case as it’s now a popular career choice for young people. Many technologically literate people are cropping up straight out of college which has the opposite affect on the median salary.
There are still several great paying jobs available and if someone knows just what to look for, they can cash in on this informational craze. The best thing a person can do is acquire a specific skill that will set them apart from the rest of the people who are qualified to do the same position. By standing apart with a specific skill, a person automatically increases their chances of getting the job just by being unique and hopefully indispensable.
Location is also a big factor in figuring up how much a job will pay. One job in one part of the world may pay an entirely different median amount than the exact same job in another part. It’s been reported that Washington DC is currently the highest paying city when it comes to IT positions. It is closely followed by New York and Boston.
Lower paying areas include Atlanta, Houston, Chicago, and Dallas. It’s important to figure in the cost of living when comparing it to the salary to be earned. Another thing to consider are the benefits that come in addition to the pay. Insurance packages and retirement plans are important to have along with maternity and or paternity leave for those who plan on having children.
For a comprehensive management position, one can expect to make around seventy thousand dollars at entry level. This is a high demand job and involves a lot of generalized duties. Typically an IT manager will over see the entire functionality of the business and their entire technology department. There are many duties associated with this job and good knowledge of several different specialized area will be required. With the option of advancement up the career ladder, a top out salary is around one hundred and twenty thousand dollars.
More specialized positions have different starting pays. An IT Vendor Relationship Manager will handle the business associations with computer and network providers. They will earn anywhere from ,000 to 0,000 a year. Another popular position is the Information Technology Director. They will handle all the aspects of handling the computer networks and policies within a company. This position may pay anywhere from 5,000 to 5,000.
It’s clear to see that people who choose an IT job must be well qualified and educated in all aspects of IT and it’s inner workings. Only the highest trained professionals will garner top dollar pay. With such a high salary for information technology jobs, the competition is increasing and more and more people graduate college seeing only the highest paying positions. For some it may be better to seek employment with a smaller corporation and gain valuable experience before tackling the big businesses.
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What is the Future of Information Technology?

The IT field is evolving and developing every day. New technologies in computers and mobile devices are shaping the way the world communicates with one another, gets work done, and spends free time. There is a growing need for individuals with a love of the field, a curiosity for the future, and a desire to be a force in it. Jobs in the field are on the rise, and employers are on the lookout for fresh talent; those who want to play a part in IT’s future have no limits on their potential or on the potential of their specific field.

Getting a job in the field of Information Technology

IT jobs are very specialized and require a combination of education and experience. There are many resources for those seeking employment in the IT field, as there are employment services that specialize in locating and obtaining IT talent specifically.

Sites such as ITjobs.com only post openings for the info tech field. Job seekers can search the site by category and post a resume; employers can post a job and search through posted resumes for employees, and both can do it free.

Another resource for those looking for a job in IT is Dice.com. This site is a job board for IT professionals that allows users to post their resume, search for open jobs by location, job title, or skill; it also provides job hunting tips and tricks for IT pros like career news articles, blogs, videos from top employers, advice, and discussion boards. For employers, they can post openings and peruse resumes, and again these services are free.

What kind of Education does one need to work in the field of Information Technology?

To work in the IT field, individuals must have a combination of formal education and experience. Because the field is developing so rapidly, there is a wide range of educational opportunities available, and updating one’s skills with experience pertaining to the newest technologies out there is extremely important.
Formal educational opportunities such as two and four year degrees in the field of information technology are abundant. Usually titled associate of science or Bachelor of Science degrees, these courses focus mainly on the majored area of IT. With classes like the principles of computer language, application server programming, enterprise software architecture, and information systems security, students receive a great deal of information regarding the “nuts and bolts” of the IT industry.

In addition to such core classes, these degrees also require courses in mathematics, communications, science, social and behavioral science, as well as some humanities. The length of the program determines how many classes in each area are necessary for graduation

For those looking to further their information technology degree, many colleges and universities now offer Master of Science and Ph.D. programs in the field. For instance, Carnegie Mellon Heinz College School of Information Systems & Management developed its Master’s program for individuals already in the field looking to hone their skills without having to drop out of the workforce or move to get their education. Carnegie Mellon’s program focuses on core requirements such as telecommunications management, IT project management, and database management, as well as complimentary electives like financial accounting, e-commerce technologies, healthcare information systems, and geographic information systems.

The University of Nebraska at Omaha offers a Ph.D. in information technology. Such a program combines information systems requirements with computer science principles to create a unique opportunity for those looking to get to the top of the IT field. UNO’s program prepares students for the specialized fields of applied computing, information systems, internet technologies, as well as the developments in telecommunications and management of IT. Students can specialize in areas such as artificial intelligence, bioinformatics, data mining, and B2B e-commerce and risk management. Course requirements depend on each doctoral candidate’s field of study and dissertation matter.