security camera ethernet

Question about wired surveillance cameras..?? (security cameras)?
I know that wireless surveillance have their own IP address to where you can just log on and view the cameras but do wired surveillance cameras also have their own IP address (hooking them up by ethernet cable)??
can you explain more thanks im a noob. and also any websites with more info?
There are several ways to do what you want...
1) Analog cameras feed video to a surveillance video recorder - sometimes called a server, sometimes called a Security DVR. A single IP address is used by the server. When accessing the camera images, a computer client (or browser) accesses the server, then the specific camera is selected through the client user interface.
Whether the camera sends video wired or wireless is irrelevent. The key is getting the video to the server. If the camera is wired, there is a cable containing the video signal and power that connects to the security DVR (or quad splitter, or video monitor). If the camera is wireless, it still needs power... but the video signal only is wireless and sent to a base station that is connected to the security DVR (or quad splitter, or video monitor).
2) IP network based cameras can have an embedded "video server". This is when each camera is assigned its own IP address and the browser or client get to see the video directly from the camera. Under certain conditions, it is also possible to have these IP network based cameras send video only to a server and a browser or client get to see the video through the video server...
Again, however, whether the camera is wired or wireless is irrelevent. It just needs to be a valid network node with an IP address in the range allowed by the network. If wired, then an ethernet network connection is needed. If wireless, then it just needs to be a wifi-enabled cam... in either case, the camera still always needs power. If wired, this can be transported over certain newer ethernet schemes - if wireless, then local power is needed.
And as you go down this path, be sure to use multiple levels of security to limit access to the video...