Introduction The development of computers, increasingly fast and efficient is a constant need. With regard to the segment of computers personal, this need for evolution is encouraged mainly by applications such as games, videos high-definition and broadband Internet. With regard the graphic areas, the advances are amazing, however…
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Introduction The virtualization is present in both on the desktop of an enthusiast for the subject and in the IT environment a multitude of companies of different areas. This is not of “fashion” or a mere whim: thanks to this concept, it is possible, among other benefits, save…
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Introduction Computer viruses are small software able to cause major disruption to individuals, businesses, and other institutions, after all, can delete the data capture information, change, or prevent the operation of the operating system, for example. As if that wasn’t enough, there are still…
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Social engineering is one of the most used ways of obtaining of confidential information and important. This is because it explores with a lot of sophistication to the “failures of security of the human”. Companies invest fortunes in security technologies information and protect physically your systems,…
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Introduction In the early days, computers were able to display only lines text. With the constant improvement of resources graphics, both hardware and software, shapes, and colors varied became part of the routine of those who use these machines, a situation that, gradually, resulted in…
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LILO is the acronym for LInux LOade. This is a program that allows the use of two or more operating systems on the same computer. The tool has a series of instructions to manage the boot sector (boot) HD, allowing that if you boot the computer from…
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Introduction The Tar and gzip are two tools used in operating systems based on Unix, like GNU/Linux, for the “packaging” and for compression of files, respectively. Although it is perfectly possible to use any of these programs individually, the the use of both at the same time it is…
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Introduction The NTFS (New Technology File System) is a system offiles that came with the launch of Windows NT. Its reliability and performance made that would be adopted in the operating systems later Microsoft, such as Windows XP, Windows Vista, Windows 7 and Windows Server 2008. But,…
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The second search site, the acronym MP3 (MPEG Audio Layer-3) it is one of the topics most researched in these services, losing just for “sex”. This is all thanks to the revolution that the MP3 has caused in the entertainment world, especially after his…
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Introduction The apt-get is a feature originally developed for the Debian distribution that allows the installation and the update of packages (programs, libraries, functions, etc) in Linux and easy way to need. This article will show you how to use its main resources. It is worth noting…
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The Samba is a “server software” for Linux (and other Unix-based systems) that allows management and sharing of resources in networks formed by computers running Windows. Thus, it is possible to use Linux as file server, print server, etc., such as if the…
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Introduction At least until the development of this article, the Apache was the the Web server used more and more in the world, having an area of more than 60%. For being so important, as well, nothing better than to understand a…
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Introduction The internet is no longer just a medium that provides resources based in texts and images and to also offer video content and audio. One of the technologies that participate in this evolution is the DivX and other similar formats, such as XviD…
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The purpose of this article is to show the characteristics of the operating systems FreeBSD, OpenBSD, and NetBSD, so that it is possible know the difference between them and which one is more indicated for certain applications. This is definitely a very common those who…
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Managers boot are software able to start the process loading of operating systems on a computer. For several reasons, it is common to find machines that have more an operating system installed. In these cases, the managers boot have a very important role, because it’s…
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When I started dealing with computers, one of the first things that I have learned is that these machines are not 100% trusted. No matter your hardware, for more the operating system is properly configured and by more experienced that is the user, the chances…
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Introduction In operating systems, a process is the way to represent a program in execution. It is the process that uses computer resources – processor, memory, etc – for the realization of the tasks for which the machine is intended to be used. This article will…
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It is very easy to find hosting services sites that offer in their plans the Systems Managers of the Bank of Database (SGDB) MySQL and PostgreSQL although this is more common with the first one. As these DBMS are not only used in the Internet, perhaps it is…
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Increasingly has used files of various kinds “converted” for the PDF format (Portable Document Format). Thanks to the Internet, it has become possible and necessary to conduct the distribution and exchange of electronic documents between individuals and companies and, at this point, the PDF technology is the most…
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On web sites, discussion lists and forums on GNU/Linux (here just called Linux) and Free Software, one of the questions the most frequent is “what is the best Linux for me?” and there are still variations on this question: “what the best Linux?”, “which Linux…
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Listen to music on the computer (or mobile digital devices) it is something that has become routine for a lot of people. In large part, the responsible for this is audio format MP3, which is so popular, it is already running in readers DVD, stereos…
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Introduction SEO (Search Engine Optimization – Optimization for Search Engines) is the set of the techniques used to improve the positioning of a website in search engines especially in Google and in Bing. The goal of these techniques basically consists in increasing the traffic a website positioning in the first…
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Introduction Since 1999, the development of the HTML language (HyperText Markup Language) it was parked in the version 4. From there to here, the W3C he focused on languages such as XML (Extensible Markup Language)and SVG (Scalable Vector Graphics – the use of vector graphics in…
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The Linux (actually, any Unix-based operating system) has a type of user that has unrestricted access to files and processes system: this is the user root or super-user. This article, aimed beginners, show you what the usefulness of this account and care that surround them. To do so,…
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“vi” is the acronym for “Visual Iinterface”. The origin of this name is due to the following fact: when the vi was created (beginning of the 80’s), was not common there are text editors as in the days of today. At that time, you typed…
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Introduction FAT16 and FAT 32 are the names of file systems (file systems) used by default in older versions of Windows operating system (such as Windows 98, for example), the Microsoft. In this article, you will learn about the main characteristics of each one of them, as…
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Introduction Experienced users of Linux know that the system has excellent performance in data management, both in regard to the storage, and in the allocations and updates of information. Among several, one of the major responsible for such efficiency is the file system (or filesystem) ext3 (acronym for third…
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Introduction If you observe well, you will see that most of the sites has a icon small, usually orange, often accompanied by sayings such as “RSS”, “XML” or “Atom”, similar to those that are shown below. These icons are, in fact, a universal symbol…
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Introduction The use of GNU/Linux (here called only Linux) is growing every day. Many users, when they visit sites on the the operating system or to hear the report of the colleagues who already use the Linux, feel encouraged to experiment with the system. The…
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Introduction The sending and receiving of sensitive information is a longstanding need, which has existed for hundreds of years. With the emergence the Internet and its consequent ease of transmitting data in a way accurate and extremely fast, and encryption has become a…
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