Virtual Server Internet
Web Hosting for individuals or companies hire web server (WEB SERVER) and bandwidth (BANDWIDTH), also known as WEB HOSTING, so that enterprises or individuals to offer WWW services, but do not have to purchase their own equipment and leased lines. Is usually a virtual host have an independent IP address (IP ADDRESS) and the domain name (DOMAIN NAME), while others are provided by the manufacturer HOSTING a directory (DIRECTORY) to serve. Most of the virtual host is a single household share a computer with other users When one of the occupation of more bandwidth and processor (PROCESSOR) resources, other users will be assigned to the relatively fewer resources, which is to select HOSTING vendors need to be borne in mind.

Virus Software
Virus, a self-replication, inter-communication in the application of special programs. Most of the virus will create the user's difficulties, and some will be malicious damage poisoning information. Early programmers writing viruses usually just to show their skills , but writing has been the industrialization of the virus, because anti-virus (ANTI-VIRUS) software industry competitive, amateur writers it is difficult to effective dissemination of the virus, only the professional development in order to maintain the virus industry.

Visual BASIC Programming
A by Microsoft (MICROSOFT) the development, use BASIC programming language (PROGRAMMING LANGUAGE) program development tools. The tool also includes integrated development environment (IDE), VBX CONTROL, and other aids. BASIC though basically not object-oriented programming language (OOPL), but the design makes the handle VB components (COMPONENT)-based forms (FORM) and event-driven (EVENT-DRIVEN) of WINDOWS programs can be quite rapid development.

Visual Cplusplus Programming                                  
A by Microsoft (MICROSOFT) the development, use C + + programming languages (PROGRAMMING LANGUAGE) program development tools, the tool also includes integrated development environment (IDE), Microsoft Foundation Class (MFC), and other supporting tools.