A bit about CCTV systems
When it comes to business security, peace of mind for the life and health of relatives, it is necessary to carefully approach the choice of security system. Over the past…

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Computer and vision
This article will focus on the effect of the computer on vision. Initially, the article was focused on CRT-monitors (tube), which could seriously impair vision with regular work on the…

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WiFi router - what is it and how to choose it correctly
Nowadays it is already difficult to meet a person who does not use a computer and does not have his home. Often people buy several computers, many also have laptops…

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your abilities

Code optimization

In the process of writing code, it is impossible to detect all errors and correct them. Writing a code, especially in large volumes, is a monotonous thing, somewhat tedious and often repeated, so the eye becomes blurry. Search and correction of errors is for me personally a separate finishing procedure. In addition to obvious errors, illogical sections of code often pop up, which also have to be rewritten, simplified, and eliminated.

In addition to fixing errors and other shortcomings, you need to take care of optimizing content for search engines. Search engines impose certain requirements on websites, which only multiply every year, and if you have not decided to deliberately close the site from indexing, you should adhere to these requirements. Continue reading

Linux operating systems

Linux is not an operating system, but just its kernel. Everything that you are accustomed to see and understand as an OS (buttons, windows and panels) – in fact, it is not. What you see is the GUI (Graphical user interface), that is, the graphical user interface, also called the graphical environment or graphical shell. GUI is a program designed to simplify the life of the user so that he does not suffer from the console. In fact, any OS looks like a console, that is, like the good old DOS.

The types of operating systems built on the Linux kernel vary widely both in providing a working environment and in the set of applications available in the OS. This is partly because some programs support only some GUIs or depend on other programs that are not in the system. A quick overview of the differences Continue reading

Bat files, examples

You can perform all the examples published below not only by creating and running a BAT file containing these commands, but also copying them directly to the command line.

To open the command line in the right place (in the folder with files, for example), you need to call the context menu (RMB) with the Shift key held down:

command line call

You can read about how to work with the command line in this article. We pass directly to the teams. Continue reading

VPN Basic Concepts and Classification
The term VPN (Eng. "Virtual Private Network") refers to a group of technologies that provide a network connection, or the so-called logical network, functioning on top of some other network,…

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File encryption
Encryption is the most common and essentially the simplest way to protect any information. After all, it seems that it could be simpler to take the text, take some algorithm…

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Silent installation of applications (silent install)
Silent installation is such a process in which you sit quietly and look at the screen where the software installation process takes place without your participation, provided that it is…

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Windows Maintenance Programs
Computer maintenance can be both physical (dust removal, etc.) and software. The second is more related to the operating system, since the software maintenance of the PC itself at home…

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