Appendix B: Glossary
You may read through the below definitions for better understanding of the network
environment, and this may probably help you to deal with the network problems when using
any network devices. However, the knowledge covered in the chapter won’t fail you to setup
and use the network camera.
For more information about those definitions, you may study them in relevant books on
network or network device.
ADSL
ADSL (Asymmetric Digital Subscriber Line) is a technology for transmitting digital information
at a high bandwidth on existing phone lines to homes and businesses. Unlike regular dialup
phone service, ADSL provides an "always on line" connection.
ActiveX controls
An ActiveX control is a component program object that can be re-used by many application
programs within a computer or among computers in a network. The technology for creating
ActiveX controls is part of Microsoft's overall ActiveX set of technologies, chief of which is the
Component Object Model (COM). When you use Internet Explorer to browse website,
ActiveX controls may assure the normal displaying of images.
DHCP
DHCP (Dynamic Host Configuration Protocol) is a communications protocol that lets network
administrators manage centrally and automate the assignment of Internet Protocol (IP)
addresses in an organization's network.
DNS
DNS (Domain Name System) is a service that locates various Internet domain names and
translates them into Internet Protocol addresses. DNS service may increase the responding
speed and accuracy of a specified web site.
HTTP
HTTP (Hypertext Transfer Protocol) is a standard protocol used widely on World Wide Web,
and all files (text, graphic images, sound, video, and other multimedia files) transferred on
WWW follow this protocol. As soon as a Web user opens their Web browser, the user is
indirectly making use of HTTP.
FTP
File Transfer Protocol (FTP), a standard Internet protocol, is the simplest way to exchange
files between computers on the Internet. FTP is commonly used to download and upload files
(the formats includes: *.txt, *.exe, *.pdf, *.doc, *.mp3, *.zip, *.rar and ect.) between two
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