Archive for June, 2007

What Is A Computer Virus? : How You Can Protect Your PC!

Friday, June 22nd, 2007

A computer virus is a program specially made to auto replicate and spread. It infects many computers, without a pre-agreement with the computer’s owner.

They spread by attaching to some programs like: .exe file, .com files, and recently to WORD, Excel, or even to HLP files. Some of the viruses can affect the boot sector of the HDD.

When an infected file is executed, or when the computer is started using an infected CD or diskette, the virus starts its work. Sometimes, the virus remains in the computer memory just to infect the next program to be run.

The dangerous viruses have the ability to execute some actions. Sometimes those actions are annoying (like the display of some response on a certain date and time, or as a feedback to an user action), or they can be very annoying – like slowing the computer performance. There are viruses that can cause a very big trouble, destroying files of data, documents or making the computer unusable.

(more…)

10 Recommendations For Your Computer Security

Friday, June 15th, 2007

1. Take some time to learn about your computer security!

2. Buy yourself and use antivirus software that you can rely on. Choose an antivirus with a good background!

3. Choose a firewall solution. Like the antivirus, independent firewall software is the better solution. Some operating systems come with a firewall that can filter traffic. Use a firewall that can control Internet traffic in both ways – in and out.

(more…)

Understanding Your CD-ROM vs DVD-ROM Drive

Friday, June 8th, 2007

The cd-rom is an external support for memory, with superior characteristics than floppy disk drives. Cd-rom stands for Compact Disk Read Only Memory and has special facilities, because of the updated fabrication techniques and the way of organizing and data accessing.

The stocking and data accessing is easily obtained using high speeds optical techniques, that’s why the number of mechanical components is little and the reliability is high.

Cd-rom history began in 1980, when this activity domain started to grow as a result of collaboration between Philips and Sony. Before that, each of them tried to provide a solution, but after the collaboration start, they set the standards of cd-rom (in 1982).

Cd-rom and audio CD are similar, only they have to deal some differences. The base is the same, also the reading principle, the physical format and the capacity. The differences are in the field of informational contents, and also in the hardware that reads and writes.

An audio CD can be easily read by the hardware of a CD-ROM.

(more…)