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,…

Continue reading →

License Review Article
Before we talk about licenses, I would like to touch on the subject of licensing in order to clarify. So, licensing is most often designed to preserve the source code…

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…

Continue reading →

rotation drive

How to improve the noise characteristics of the system unit of a personal computer

When using a home personal computer to watch movies, listen to music or browse the Internet, especially at night, the noise of the system unit becomes especially noticeable. Permanent noise sources are active elements of cooling systems (ventilation) and hard disk drives.
Usually, several fans are installed in the system unit: on the processor heatsink, on the video card (if there is an active cooling system), for blowing the hard drive, for housing ventilation, in the power supply.

The most energy-intensive components of a personal computer are the central processor and video card. Accordingly, they have the most powerful cooling systems, which are the main sources of noise. On the other hand, since all modern processors, including graphic ones, are equipped with energy-saving functions, the heat dissipated by them under low loads is small. In this case, the fan or turbine of the cooling systems installed on them practically Continue reading

The computer does not turn on: the problem is in the power supply
All PC malfunctions falling under the “computer does not turn on” category boil down to one single problem: it is impossible to download any of the known operating systems to…

...

Modernization of old PCs
I note right away that the article has been for several years and it was left on the site for a change. It is clear that now on the market…

...

Capacitor Replacement
In the element base of the computer (and not only) there is one bottleneck - electrolytic capacitors. They contain electrolyte, electrolyte is a liquid. Therefore, heating such a capacitor leads…

...

Why you should never use a free VPN
Today virtual networks are very popular for solving personal security issues on the Internet - VPN. More and more people use them to circumvent network censorship in countries where there…

...