What is Information Technology

What is Information Technology:

Information technology (also known by the acronym IT ), is an area that uses computing as a means to produce, transmit, store, access and use various information.

As information technology can encompass and be used in various contexts, its definition can be quite complex and broad. However, it is used to process information , helping the user to achieve a certain objective.

Information Technology can be divided according to the following areas :

  • Programming;
  • Database;
  • Technical support;
  • Information security;
  • Tests.

What does an IT professional do and what are their areas of expertise?

A professional can work in the various areas of information technology. Among them, the programming, database, technical support, information security and quality tests.

Security Analyst

In this area, the professional acts mainly to maintain and improve the security of an institution's data , whether public or private, creating “barriers” that protect the security of equipment. In addition to working with the company's operating systems and servers, thus avoiding invasion attempts.

If there is an invasion of data, this professional is also responsible for fighting threats and developing more efficient ways so that it does not occur again.

Technical support

These are the professionals who work in the maintenance of hardware (physical equipment), working on computer repairs, problems with access to systems, among other issues that appear in the daily life of a company.

To work in this area, it is necessary to understand the technical part of a computer's architecture.


The professional in the programming area can work in several fields, because this is one of the most comprehensive areas of information technology and it is more subdivided into other areas. That's because there are several different programming languages , and the professional can focus on just one.

There is, for example, programming for databases, web , mobile and even games. Generally, an IT professional who chooses the programming area needs to specialize even more in a single language

Quality tests

This professional acts in the verification and analysis of software and applications even before they reach the market or the end customer of a company.

The professional who works with quality tests checks the usability of an application or software to find out if its functioning is as promised or with what the company expects it to deliver.

Network administrator

This professional is responsible for managing all communication networks that exist within a company, whether its computers or other equipment, such as printers and the like.

It is one of the areas of IT that requires technical knowledge of hardware and software , since this professional deals with the company's infrastructure, installation and maintenance of the company's systems on a daily basis.

For this reason, the professional in this area usually has a lot of experience in the IT area in general, understanding a little programming, technical support and database to perform his function effectively.

The evolution of information technology

The evolution of information technology began effectively in the 20th century, after the Second World War, when electronic devices were being developed.

The first programmable computer was created in 1946, called ENIAC, in a format very different from what we know as a computer today: it occupied more than 180 m² and weighed 30 tons.

Computers have evolved, as have internet access and the information circulation format. The 1970s were very important for IT's, since computers started to integrate into a network and the internet in optical fiber was distributed in large industries.

Since then, several electronic devices have been created, such as smartphones, for example, that change the way we live in society. In addition to transforming the way we communicate, we buy, sell, acquire services and even how we relate.

This constant evolution of information technologies has also changed the way companies relate to their end customers, making selling and communicating much more instant and personalized.

Information and communication technology

Information and communication technology, or ICT, is the area that uses technological tools in order to facilitate communication and reach a common target . This communication can be in text, image, video, recorded voice, among others.

In addition to benefiting the industrial production of a certain good, ICTs also serve to enhance communication processes. Education, for example, is one of the areas that most benefits from the implementation of ICTs.

More effective learning is one of the consequences of faster communication, through new technologies, such as the use of computers, tablets , among other electronics in the classroom. In addition to Distance Learning, which originated with the help of the internet.

Information and communication technology also revolutionizes business processes and scientific research.
IT's have evolved a lot with the rapid development of technology, and with this development more and more solutions are being made available by information technology.

The trend is that information technology is increasingly important in our society, with the transformation of content in various formats. This can provide new ways to communicate, relate and inform.