Monday, July 27, 2015

Who spreads the computer viruses?

I was skeptic when I read that even social media groups are likely to spread computer viruses. As an avid internet marketers, I have been associated with more than 400 FB groups and 300 Google plus communities. My computer was never infected because of my involvement with them.

So, who actually spreads computer viruses and malware? It is difficult to assimilate the reports that they are people who deliberately sabotage computers with viruses.

What Computer Viruses Really Are
You can call any malicious computer program a virus. In reality, there are at least seven distinct types of malicious software, or malware, commonly affecting computers today. The most common of these are worms, Trojans, and spyware.

So, what's the difference between computer viruses and the other types of malware? The difference is that computer viruses are just about the only ones that regularly shut down computers and cause other obvious damage. The most common of the other kinds of malware--worms, Trojans, and spyware--are usually only detectable with a special scan.

The Real Danger of Computer Viruses
If the other types of malware are so unobtrusive that they can only be detected with a special scan, then what's to worry about? For starters, these programs are called malicious for a reason: they are designed to cause some kind of damage, if not to your computer, then to someone else's.

Worms are most famously used to damage, destroy, or disrupt other computer networks than the one on which the host computer is located. For instance, worms have been used by website owners to shut down rival websites by sending overwhelming numbers of requests to the computer that hosts that website. 

Worms have also been used to send out viruses to other computers, often without infecting the host machine--after all, what would it benefit the worm to shut down its host computer?

Trojans, in turn, are often used to insert worms and other malware on your computer, even if the Trojan itself does no damage.

But even if you don't care what happens to anyone else, you should still be concerned about one kind of malware: spyware, a kind of malware that, true to its name, collects data from your computer and sends it back to a remote host.

Most spyware is only interested in monitoring your internet usage so it can tell other programs, called adware, what advertising to popup on your computer. However, there are criminal spyware programs that steal financial data, or perform a thorough identity theft. Don't think you have personal or financial data on your computer?

 Some spyware programs contain a keylogger, which is a program that copies whatever you type, usually in order to snatch passwords. Even if you keep no financial information on your computer, if you ever buy anything over the web, the keylogger would allow its owner to buy stuff using the same information you typed in to buy stuff yourself.

I used to warnings from my web host that my site is infected with malware but when scanned I found them to be really harmless though I would immediately delete them and get back my site up and running in a few hours.

Tuesday, July 14, 2015

Is it wise to choose a Notebook over a Desktop computer?

That question came up for a discussion when my attempt to sell my unused desktop computer brought lukewarm response. My friend told me that the era of desktop home computers is gone and is replaced by portable and hand-held computing devices such as notebooks and iPads.

Well may be he is right but I am of firm opinion that desktop computers can easily outweigh the other computing gadgets as far as convenience is considered-right?

I am aware that computer notebooks offer a number of advantages over desktops but still…
Ok, let me think aloud of the advantages.

1.       Mobility
Notebooks with wireless connectivity can travel with you throughout your home, so you can check your email or do your Internet shopping anywhere.

Of course, notebooks also make sense for those who are on the go. Students can take laptops to class and to the library, while businesspeople can take them along while traveling. With WiFi so widely available, it even makes sense to have a notebook while on vacation. With the right notebook, it's easy to take photos with your digital camera, upload them, and email them to friends and family before you even get back home. Or you can use it to write a vacation blog and include those pictures from your digital camera.

      2. Better Displays
The size and quality of computer notebook displays has improved so dramatically that there's little difference between laptops and a computer desktop. For example, you can get Apple's MacBook with a 13.3-inch LCD widescreen (1280 x 800 pixels), a 15.4-inch LCD widescreen (1440 x 900 pixels) or a 17-inch widescreen (1680 x 1050 pixels). Similarly, the Compaq Presario has a 15.4-inch display.

3. Light Weight
Arguments for a notebook against heavier laptops are worthless. The weight on your hand speaks for notebooks.

There are so many advantages to owning notebooks that, before you buy your next computer, it's worth your while to take one for a spin.

So, what should I do with my unused desktop?  May be I can donate it to a library?