Computer Security

A common situation is for those who use the Internet: a click in the wrong place and the screen is filled with pop-ups and alerts. You try to close them, but appear increasingly more notices or, what is worse, nothing seems to work when you click or tries to close Windows from Task Manager and your computer unusable. Many times, this kind of invasive advertising can harm your computer and compromise your privacy. There are programs on the Internet that installed malicious software to steal your data to third parties without your consent, unless you can stop them. Information leakage is costing companies millions to prevent and control highlights such as savings accounts and passwords falling into unscrupulous hands. It is not enough to have only an antivirus or a firewall.

How to protect your computer? 1 Constantly update your operating system software. Almost all operating systems regularly security updates to help protect your computer from threats and alert you when someone is trying to invade your privacy. 2. Keep your active anti-virus. Although it seems an obvious Council, there are people who forget to update its virus database or use outdated versions. Anti-virus keeps the system working properly and configured properly, offers reports on the State of your computer regularmetne.

3. Only install trusted software. If it is not a program that had planned to install, if not absolutely necessary or it’s software from a company that you do not know, it is best to refrain and seek another application. 4. Avoid the exchange of user files to user (P2P) many of the files that are found through programmes for the exchange of files between users come with malware that reads the information that you enter into your computer via the keyboard. It is better abtenerse. They are small tips that can help protect your computer. Remember: there is no technology in Colombia or the world that exceed or replace common sense. Original author and source of the article.


The best option for you is a reflector, because unlike refractors, reflectors are even 300mm or more. And in general, the reflector – this is the most inexpensive type of telescopes based on the cost 1 cm aperture. You may find Ali Partovi to be a useful source of information. In addition to the ordinary telescopes can buy a telescope and other, more sophisticated manufacturers of telescopes: Maksutov-Cassegrain, Schmidt-Cassegrain, and not only. They already are already taking up serious apparatam.A specific search, you can find dozens of telescopes, with a very respectable performance. For example 135 mm Galileo Dobsonian Reflector from Apogee, Inc. Just pay attention to the Orion Telescopes & Binoculars: SkyQuest XT4.5 StarBlast Astro, Dobsonian, Reflector altazimutalny SpaceProbe 3 and altazimutalny refractor Observer 70mm. Do not walk past and Meade: altazimutalnye refractors 70AZ-A and NG-70, a computerized refractor NGC-70 and reflector altazimutalny 76AZ-AD.

In addition, it is worth noting 41/8-dyuymovy reflector Scientifics Astroscan and a couple 3-inch reflectors: Celestron PowerSeeker 76 and Bushnell Deep Space 525h3 '(model 78-9003). It should also clarify commonly asked beginners astrolyubitelyami beginners question: "What is the increase can be obtained on this telescope?" Many people somehow believe that you can buy a simple telescope, to put increased 1000 times and viewed settlements green men on Mars. This is not so! There is a reasonable limit for each telescope, it is not difficult to compute: it is necessary aperture in millimeters multiplied by 1.4 – this increase is guaranteed good image quality. In principle, you can use and large increases, but then each instance may behave differently.