Computer virus
A virus computer is a program, usually small or very small, with the following properties: infection, multiplication and possession of a deleterious function (payload).
The function of infection allows the virus to enter the program files, in data files using a script language, or part of the floppy or HDD containing a small program (boot sector). When accessing these programs or sector, the virus code will run on a first silent (multiplication phase during which it infects other files) and visible (activation function harmful).
The function may be harmful triggered by factors vary depending on the virus (after n replicationsAt a fixed date when the execution of specific tasks ...). It may be limited to displaying an annoying message or, more generally, lead to serious disturbances of thecomputer (slow operation, deletion or corruption of files, formatting the hard disk ...). Viruses are programs Parasites that must be accommodated in other files (executable or sector of the disk).
It is often used inappropriately the term virus to describe other harmful programs (malware), Especially worms.
Videoconferencing
Teleconference with the image (animated) and sound.
Videophone
Phone images.
Video Calling
Technique to transmit weather real-time sound and image.
|
