In this article, the author shares his experience in dealing with a number of malware, that appear on the Internet almost on a regular basis. "Banner-beggar" One of the first I "caught" malware 17 December 2009 city, Downloading books and programs. However, some sites are dumped… Continue Reading
To control the performance of equipment and prevent damage to expensive equipment is often necessary to control the amount of supply voltage. Most simply do it through the monitor voltage with warning lights. AT [1] It was diagram (Fig.1) radio voltage monitor… Continue Reading
According to reports, appeared in the last few years, in the world of total surveillance is booming, collect personal information about almost all the inhabitants of the land. In this regard, it has become even more urgent file protection, stored in a computer, containing, For example, design, research papers, and… Continue Reading
For the smooth operation of personal computers using uninterruptible power supplies (UPS), allowing at mains voltage failure will automatically switch to power from the internal battery. Their composition has a powerful converter IC-AS 12 B / 230 B. These UPS can be used in the field to… Continue Reading
This power supply with unstabilized output voltage VDC can operate in two modes,: as a bipolar power supply with the output voltage +17,5 B and -17,5 At a maximum load current 3 And in both channels simultaneously or with unipolar… Continue Reading