Archive for August 9th, 2012


Advantages and Disadvantages of Using Cloud Based Anti-Virus Software

Thursday, August 9th, 2012

Cloud computing is revolutionizing the computer industry. The less powerful computing machines are now capable of solving problems that are much beyond their limitations. We have seen that as the consumer market is accepting cloud computing, there has been a tremendous increase in the Web applications available. Document editing, image manipulation, gaming and almost all types of activities can now be performed over the Internet. Even anti-viruses have gone cloud. The importance of anti-virus software is self-evident for any laptop user.

The demand for such software is increasing as laptops are affordable for almost everyone, and you can buy laptops with Dell coupons or discounts no matter where you are. The growing number of laptops brings the increased need for anti-virus applications. More and more laptop users are turning to cloud-based anti-virus software for virus removal. In this article we will be discussing the advantages and disadvantages of cloud anti-virus software.

How Cloud-Based Anti-Virus Software Works

For cloud-based applications like document editors and image manipulators, all you need are a Web browser and Internet access to these services. However, in the case of cloud-based anti-virus software, the scenario is a little different. You need to download a native app for a cloud anti-virus. The app then connects with the cloud anti-virus database and exchanges data among the cloud and the client PC accordingly. Web browsers can also be used to scan the computer through ActiveX or Java. Some anti-viruses also use a Web browser extension to gain access to the computer to scan it. The client application installed on the PC checks files and matches with the virus signature database present at the cloud. If there is anything wrong in it, then appropriate actions are taken.

As we all know that there are many advantages of Web applications over local applications, similarly there are many advantages of cloud anti-virus over local anti-virus.

ADVANTAGES

1. No Need to Install

The major advantage of cloud-based anti-viruses is that you don’t have to install them on your PC. Having anti-virus software installed on your PC consumes disk space, RAM and processing power, and users who don’t have a high-end computer system might see a decline in the performance of their PC. The anti-viruses keep running on the background while you are working, and this reduces available RAM and processing power for other applications, thereby reducing application speed.

2. No Need to Update

Cloud-based anti-viruses solve a major headache that most PC users have reported. Users who have anti-virus software installed on their computer systems keep receiving notifications to update their anti-virus database. Though some anti-viruses keep updating themselves on their own, most anti-viruses need to be updated. This not only causes a headache for the users but also keeps downloading data. With cloud-based anti-viruses, the virus signatures database is updated only at the cloud and all the PCs connected to the cloud are benefited from it.

3. Double Security Layer

A single local anti-virus consumes so many computer resources that one can’t think of installing another anti-virus. It is quite possible that a specific type of anti-virus software misses a virus. So, if we can take advantage of scanning your computer with more than one anti-virus, then we can reduce the chances of missing a virus. With cloud-based anti-viruses, we can easily have any number of anti-viruses running simultaneously, which uses a fraction of the computing resources.

Besides so many advantages, cloud anti-viruses do have some drawbacks.

DISADVANTAGES

1. Can’t Run in Background

Cloud anti-viruses are based on client-to-cloud relationship; therefore, these cannot run in the background. It is very crucial for an anti-virus to run in the background and scan each program before it starts. Cloud anti-viruses are sometimes unsuccessful at detecting viruses, but this technique provides an extra layer of security.

2. Limited Scan

Some cloud anti-viruses scan only the core Windows files for viruses and they don’t scan the whole computer. Therefore, this doesn’t cover up the risk completely and a virus sleeping somewhere on the hard drive can become active later. However, a locally installed anti-virus thoroughly scans the files and reports if a virus is found anywhere on the hard drive.

3. Need Internet Connection

Cloud services are highly dependent on the Internet connection and so are the cloud anti-viruses. If we don’t have access to the Internet, the virus living in our computer system will be free to do whatever it wants. It is a fact that we cannot stay connected all the time, thus depending on the Internet connection for computer security is a bit riskier.

Conclusion

Cloud anti-viruses come with lots of advantages and drawbacks. Despite their ability to protect PCs from viruses without using as many resources as locally installed anti-viruses, cloud anti-virus applications are highly dependent on the Internet connection and speed to perform the tasks. The advantage is also undeniable that they don’t need to be updated as the virus signature database is located on the cloud.

New and Affordable Technology is Making Communication Easier

Thursday, August 9th, 2012

Ever since the introduction of the telephone in the late 19th century, technology has gradually made it easier and more affordable than ever to communicate with one another. In the early 90s, however, the game changed entirely with the introduction of the Internet.

Now that millions of computers were interconnected, mankind could communicate in a brand new way that was not only more efficient, but far more affordable. Today, advances in both online and phone technology continue to make communication easy and affordable. Needless to say, Alexander Graham Bell would be proud!

E-MAIL

One of the first ways the Internet allowed people to communicate was through e-mail. For the first time ever, we were able to send completely digital correspondence in a way that could be easily read, stored, indexed, and even printed. Although it came at a heavy loss to the postal service, it completely revolutionized the way we communicate. No longer did we have to manual delivery mail, spreadsheets, or files! They could all be sent and received virtually.

To this day, e-mail is one of the most affordable methods of communication for anyone with an Internet connection. With many websites offering free web-based mail, it’s never been easier to use!

Technology is making communication easier

INSTANT MESSAGING

Now that mail and documents could be sent through the wires, the next big step was to digitize conversation. This was achieved with instant messaging that originally involved downloading some form of software and communicating with people on a list of contacts. Although many forms of instant messaging still use this format, it’s evolved into other forms: With live online chat rooms and instant messaging features built into many major web services, we’re now able to communicate online almost as efficiently as we do in real life; and it’s usually free!

INTERNET PHONE

Unlike traditional telecommunications that necessitate telephone lines or devoted wireless networks, the Internet is able to provide a connection in a multitude of ways. In fact, today we can even use cellular networks to get online, making the Internet more accessible than ever before. With the affordable functionality of the Internet alongside the ability to record and send voices through the computer, Internet-based phone services soon became exceeding popular. Unlike normal phone plans that usually require contracts and impose location and minute-based limitations, the Internet allows us to connect with people from all over the world for one low price: The cost to connect.

As many people find talking online far cheaper than paying hundreds of dollars a month for pricey international calls, Internet phone services are becoming increasingly popular.

VIDEO CHAT

With the advanced inter-connectivity and features of the Internet coupled with the ability to send both sound and video in real time between computers, it was online a matter of time until video chat was developed. Today, Internet users have access to a wide range of free video chat programs. These have the same affordable benefits as Internet phone services do, but with the added bonus of being able to communicate virtually face-to-face.

CELL PHONES

Although often not quite as cheap as Internet-based services, cell phones are still the leaders of modern telecommunication. With many smart phones offering phone, text messaging, Internet access, and much more, we’re now able to use and access all of the previously mentioned technologies – e-mail, instant messaging, etc. – through convenient and sleek devices.

However, not all cell phones have these features; for the time being, those that do can be expensive. The cell phone itself, however, is still an incredible technological advancement that allows us to communicate from almost anywhere. With some prepaid cell phones going for as little as $10, they continue to be one of the most convenient and affordable ways to keep in touch.

As technology continues to develop, new and cheaper ways of communicating become available to billions of people all over the world. While technology has at times hindered communication, with new advances, communication technology can bring people closer than ever before.