Perfect Computer Notes

Topic: Explain Advantages of CD and DVD and Differences Between CD and DVD  What is CD? CD stands for Compact Disc. Compact Disk or CD is a popular storage device. It is a portable storage device. It can store about 700 MB (Mega Bytes) of data. Advantages of Compact Disk It can store large amounts of different types of data. It can store information in the form of sound, videos, programs or software, pictures and other graphics, documents and many more formats of data. We purchase games and software stored on CDs. CD can store audio/ video songs and videos, too. It is very inexpensive way of storing large amounts of data permanently. It is used for backing up of important data, that can be recovered in future if any data is lost from our PC's hard disk. Compact Disks are easy to use and easy to carry. Compact Disks are durable and reliable. CDs can store data for many years without losing a single byte. Different Types of Compact CDs are: CD-ROM

Today, while searching on Internet for the Best Free Antivirus of  the year 2013, I decided to do some research work in a different way. There are many reputed Software Repository Websites found on Internet. These websites provide information about new Software with reviews, technical details, Editor Ratings, User ratings, number of downloads and download links. I did research on these sites EDITOR RATINGS for the popular Free Antivirus Software found on Internet. I selected the following popular Software Download Websites: 1. Softpedia.Com Softpedia is an Internet site that indexes information and provides software. The site also covers technology, science, health, and entertainment topics from external and in-house sources and provides software and game reviews. As of 2012 it was the 25th most-visited site by Romanians. It is a "popular destination for software download". 2. Snapfiles.Com  Snapfiles provides facility to Download freeware and shareware programs, f

Comodo Internet Security combines Comodo AntiVirus with a personal firewall that filters ingoing and outgoing traffic on your computer. It alerts you of any applications that attempts to connect to the Internet and allows you to permanently or temporarily allow or block the connection. Comodo is on Number 3 in Free Antivirus Competition 2013 Comodo Internet Security is a free antivirus and PC security solution that combines a number of effective security tools into one easy-to-use package. It provides some important characteristics, such as cloud-based virus scanning and behavior analysis to counter zero-day threats, a sturdy firewall, sandboxing, and anti-spyware, too.        Important Features of the Comodo Free Antivirus         Secures against internal and external attacks (Antivirus and Firewall Combination)and maintains smooth running of your PC     Blocks internet access to malicious Viruses, Worms and Trojan Horses     Safeguards your precious Personal data against