How technology evolves

How technology evolves

As time progresses we see how technology evolves, we see how little by little things get better as they improve the vehicles, appliances, all kinds of things that little by little to make our lives better.

And it is that little by little we realize that without the technology could not live, a simple example is the evolution of cell phones every day we see how a new cell phone comes into the world, and is essential even for smaller ages.

With this we can see that technological activities influencing the social and economic progress, but his overwhelmingly commercial makes is more oriented to satisfy the wishes of the more prosperous than the essential needs of the needy, which also tends to make non-sustainable use of the environment. Although the technology can also be used to protect the environment and prevent progressive needs to stimulate a depletion or degradation of the planet's energy and material resources or increase social inequalities. As does use intensive, direct or indirect, of the environment, it is the main cause of the growing depletion and degradation of natural resources of the planet.

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Cloud Computing

Cloud Computing

Have you ever had problems because not enough you storage space on your computer, your USB or removable disk? Or, worse still, has happened that your information has been cleared and had no backups or that these also failed?

There is now a new computer system that can help to avoid this kind of annoying drawbacks and which can be used both by people and companies.

A topic that is broader than was thought, since “it involves not only storage, but it also involves capacity for processing and distribution, all this Internet-based" is cloud.

Cloud Computing ordinary users is probably already a thing of every day. We all use Gmail, Hotmail, or any other email service, isn't it? Then we are already using Cloud Computing somehow; and it is that, little by little, the Navigator, which previously served for that, to surf the Web and little more, is becoming our new operating system, given the amount of applications we give. Have you ever thought in everything what the browser can do? Before, if you wanted to send a message, we had to open a specific program; to chat, another; and to listen to music, we had to open a media player. Today, the browser is able to encompass all of that. To then install programs or applications on our computers if we can get the same services without the need to do so?

What is it?

Cloud computing is the delivery of computing and storage capacity as to service to a heterogeneous community of end-recipients. The name comes from the use of to cloud-shaped symbol as an abstraction for the complex infrastructure it contains in system diagrams. Cloud computing entrusts services with a user's data, software and computation over a network.

There are three types of cloud computing:

·          Infrastructure as a Service (IaaS)

·          Platform as a Service (PaaS),

·          Software as a Service (SaaS).

In this type of computing everything you can offer a computer system is provided as service, so that users can access the services available "in the Internet cloud" without knowledge (or at least without being expert) in the management of the resources used. According to the IEEE Computer Society, is a paradigm in which information is permanently stored in servers on the Internet and is sent to caches temporary client, which includes desktop, leisure centers, laptops, etc.

"This model of technology adapts to the needs of the company at all times, which only pay for what you use"

Characteristics

-Agility                                 - Application programming interface (API)
-Cost                                    - Device and location independent
-Virtualization                      - Multitenancy
-Reliability                            - Scalability and Elasticity
-Performance                      - Security
-Maintenance

Advantages

• Proven integration network services
• Services at world level
• A 100% infrastructure of cloud computing allows the content provider or services in the cloud without installing any type of hardware, since it is provided by the supplier of the infrastructure or platform in the cloud.
• Implementation faster and with less risk.
• Automatic updates that do not negatively affect it resources.
• It contributes to the efficient use of energy.

Disadvantages

• Centralization of applications and data storage creates an interdependence of service providers.
•  Application availability is tied to the availability of Internet access.
• "Sensitive" data of the business do not reside in facilities of the companies, which could result in a context of high vulnerability to the theft or theft of information.
• The reliability of the services depends on technological and financial "health" of cloud service providers.
• The availability of highly specialized services could take months or even years that they are feasible to be deployed in the network.
• Functional maturity of applications that they are continuously modifying its interfaces, so the companies of non-technological orientation learning curve has a significant pending, as well as automatic consumption by applications.
• Security.
• Scalability in the long term. 

By Estefany Ramirez

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Social Network

Social Network

Technological advances have increased dramatically through the years, technology has been very helpful in our daily lives, simplified surprisingly since they have created many useful tools for our daily use and have made our lives easier.

On this occasion we are talking about social networks, as it is a very effective media to communicate with friends and family around the world. The barriers have been breaking slowly and the social networks have influenced so that much of this can be possible.

Social networks are social structures composed by groups of people, which are connected by one or more types of relationships such as friendship, kinship, common interests or shared knowledge. There may be many types of links between nodes. The multidisciplinary research has shown that social networks operate on many levels, from family relationships to relationships statewide organizations (in this case we speak of political networks), playing a critical role in determining the political agenda and the degree to which individuals or organizations achieve their objectives or are influenced.

Social network analysis examines the social structure using Graph Theory and identifying the entities as "nodes" or "vertices" and relationships as "links" or "edges". The structure of the resulting graph is often very complex. As stated, in its simplest form, a social network is a map of all the relevant links between all nodes studied. We speak here of networks "sociocentric" or "complete". Another option is to identify the network that involves a person (in different social contexts in which they interact), in which case we speak of "personal network".

The social network can also be used to measure social capital (ie the value that an individual obtains accessible resources through their social network). These concepts are shown often in a diagram where the nodes are points and loops, lines.

Social network is also often referred to as Internet platforms. The social networking sites whose purpose is to facilitate communication and other social issues on the website.

Among the best known social networks are:

Facebook

Twitter

Tagged

MySpace

hi5

Baddo, etc.

Each of these have different characteristics, but each one is functional from one user to another, ie, depends on the need of each.

Many people have misused these tools, but in my opinion if we use it the right way we can get good results

By : Keila sterling

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A Brief History of Electricity

In the history of electricity, no single defining moment exists. The way we produce, distribute, install, and use electricity and the devices it powers is the culmination of nearly 300 years of research and development. Efforts to understand capture, and tame electricity began in the 18th century. For the next 150 years, dozens of "natural scientists" in England, Europe, colonial America, and later the United States analyzed electricity in nature, but producing it outside of nature was another matter. That didn't happen on any large scale until the late 19th century. Setting the stage for widespread commercial use of electricity were international researchers engaged in pure scientific research, and entrepreneurial businessmen who made their own major discoveries or produced, marketed, and sold products based on others' ideas.


Prominent contributors to today's electrically energized world



Thomas A. Edison (1847-1931), the most productive electrical explorer. He invented the electric light bulb and many other products that electricians use or install
Georg Simon Ohm (1789-1854), a German physicist and the discoverer of Ohm's Law, which states that resistance, equals the ratio of the potential difference to current
Nikola Tesla (1856-1943), a Serbian-American inventor who discovered rotating magnetic fields. George Westinghouse purchased Tesla's patent rights.
George Westinghouse (1846-1914), an able adapter of other people's research, purchased their patents and expanded on their work. His first patent was received for a train air brake. In 1869, he formed the Westinghouse Air Brake Company. Eventually, he held 360 patents and founded six companies. He lost
control of his companies in the 1907 panic, but went on working for them for another three years. The experiences of electricity's founding fathers parallel in many ways the electronic technology breakthroughs of the past half-century that have brought us a whirlwind of innovation in computer hardware, software, and Internet communications. Just as a wave of electrical inventions dramatically changed the world as the 20th century progressed, so can we anticipate a steadily escalating rate of innovation in these emerging electronic disciplines beyond the dawn of the 21st century

Engineers that Changed the World - Nikola Tesla

Nikola Tesla was one of the greatest scientists and inventors who lived during the period 1856 - 1943. His inventions are present in many aspects of science - but he is mainly known for inventing the radio and the use of alternating current.
Nicola Tesla

Tesla's Own Company As it was mentioned in the first part, Tesla (a Croat by nationality and Austo-Hungarian by citizenship) had emigrated to US and worked with Thomas Alva Edison. However, as they were having constantly disagreements whether direct current (Edison's "love") or alternating current should be researched more, Tesla parted ways with Edison and eventually started his own business. He formed his own company "Tesla Electric & Light Manufacturing" in 1886 under that banner, Tesla created some of his most creative work and the greatest inventions ever known.
A large part of Tesla’s work was concentrated on wireless transmission of AC electricity over large distances. He maintained: “Ere many generations pass, our machinery will be driven by a power obtainable at any point of the universe.” Something that today is taken for granted and is known as the Tesla effect. In subsequent years till 1900, Tesla's work revolved around X-Rays, high frequency AC, transmission of electromagnetic energy, and building the first radio transmitter (the Nobel Prize for which, however, was given to Marconi), and mainly wireless transmission. He also built Warden Clyffe, the first wireless power transmission facility. The company, however, was indulged in a "War of Currents" with Edison (Ac v/s DC) which led to the bankruptcy of Edison's company, but also damaged the Tesla's company financial infrastructure

Electrical engineering Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical power supply. It now covers a range of subtopics including power ,electronics, control systems, signal processing and telecommunications. Electrical engineering may include electronic engineering. Where a distinction is made, usually outside of the United States, electrical engineering is considered to deal with the problems associated with large-scale electrical systems such as power transmission and motor control, whereas electronic engineering deals with the study of small-scale electronic systems including computers and integrated circuits. Alternatively, electrical engineers are usually concerned with using electricity to transmit energy, while electronic engineers are concerned with using electricity to process information. More recently, the distinction has become blurred by the growth of power electronics 

By: Emmanuel Perez

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How Electronics Changed the World

One of the best things that electronics have given our society in the 21st century was sending men on the moon and subsequently into other planets. Without the use and development of the proper electronic tools, we would never have reached the heaven, leave our footprints on the moon and pitch the American flag on the lunar partner.




Without electronics, we would have to endure dark nights, lit only by candlelights and torches and we also had to suffer from the biting cold or the sweltering heat depending on where you live.


Electronics such as electric fans, airconditioning units and heaters have all given us a better life. The electricity that powers our homes and illuminates our lives is also of our electronics products and those complicated looking equipment found in power plants around the country.

Education has also been tremendously impacted thanks to the improvements in electronics. Schools are no longer limited to blackboards in teaching. Teachers can now use audio-visual materials in order to help children learn their ABCs or their 123s.


The business and financial  sector have also greatly improved thanks to the contributions of the electronics. Businessmen can now sit comfortably in their offices and meet or talk with prospective clients or with their business partners through wireless cables and other electronic equipments like the desktop computers or the laptops and webcams.


Business presentations have also become easier thanks to the miracles of electronics. Business people can now enjoy save more time writing on the board during a conference or a meeting and instead show a presentation using a powerful projector.


Buying and selling stocks have also become easier as communication has improved with the help of electronics. Stockbrokers no longer have to write down every new deal close because they can easily input everything through various equipments that are specifically available for brokers or people involved in the Stock Market.


Finally, thanks to electronics, everything seems to be connected, it has made life brighter, cities more enjoyable and safe and made homes more comfortable. It has also made life better in terms of work and in terms of connecting with other people either in school or outside. 

By: Gregory Moreno

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