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The C language was created in the early 1970s and was originally intended to write part of the Unix operating system. C language is a universal programming language, characterized by a concise expression, a modern control of the execution flow, data structures, and a rich set of operators.
The C Language is not a “very high level” language and is not specialized for a particular field of applications. The absence of restrictions and its generality make it a more convenient and effective language than many other stronger languages.

The C Language allows writing well-structured programs, due to its flow control constructs: instruction… read more +

Linux Mint 17 “Qiana” LTS, according to the release notes back in 2014, it brought many new features. We will mention only a few, not necessarily the most important ones: the update manager, which was less resource consuming, faster and more elegant, the drivers for video cards, which were able to be installed without an internet connection, the user login screen, which looked much more interesting and they also introduced a new tool that offered improved support for regional languages, the good screen Revenue, which was redesigned and received upgrades, along with the application that allowed you to choose… read more +

The following bug manifests on all versions of Ubuntu, starting with Ubuntu 14.04.6 LTS, Ubuntu 16.04.6 LTS, Ubuntu 18.04.3 LTS, Ubuntu 19.04 (Disco Dingo) and Ubuntu 19.10 (Eoan Ermine).

How it starts

After an update to the latest version, either through:

apt-get update

apt-get upgrade

apt-get dist-upgrade

How it manifests

The system will hang permanently at boot time, no matter how many times we reboot the OS, with the last message being Starting bpfilter and with the Gnome Display Manager failing to start. The operating system will not respond to any keyboard input, and the only way to get out of this is to power down the computer.

This issue… read more +

A+

A + is a programming language, a dialect of the APL language but with extensions. Arthur Whitney developed the “A” part of A +, while other developers at Morgan Stanley expanded it, adding graphical interface and other language features. A + has been designed for applications that use number boards intensively, such as financial applications. A + runs on many variants of Unix, including Linux. A + is a high-level, interactive, interpreted language. A + is licensed under the GNU General Public License.

ActionScript

The programming language for Flash is ActionScript. With ActionScript, you can write instructions to control the elements… read more +

A programming language is a system of conventions adopted to carry out a communication – between the programmer and the computer. The languages ​​used to program a computer are extremely similar to natural languages.

They are composed of:
1. words (reserved)
2. punctuation
3. sentences and phrases
4. syntactic rules

Just as in order to acquire a foreign language its words must be learned and the rules with which it can be manipulated, so in order to acquire a programming language, the words and signs that compose it together with their handling rules must be studied. According to the method by which the whole communication… read more +

Distributed database systems represent collections of nodes connected to the network, each node being a database that communicates and collaborates with the other databases so that the user can access data from anywhere within the network, in a transparent manner. Distributed database systems are mainly composed of distributed databases and the distributed database management system.

Distributed database systems must help solve the problem of “information islands“, which have arisen as a result of geographical separation, incompatible computer architectures, incompatible communication protocols, and so on. Integrating database systems into a whole from a logical point of view could stop this way of… read more +

A distributed system is defined as a collection of programs and processes that operate over a network of electronic equipment, in which each node has local autonomy, its own processing unit and memory and the nodes as a whole are transparent to the user in order to achieve the objective pursued.

The defining features of distributed systems are: multiple nodes, resource sharing, competition, message transmission, node heterogeneity, multiple protocols, open, defect transparency, fault tolerance, persistence, security, local autonomy, no central server.

Multiple nodes mean the existence of multiple computers (nodes) connected to each other in the network. The distinction between parallel… read more +