Firstly, the question does not end and therefore unable to answer fully.
Second, you cannot put your Xbox 360 in HD mode with using VGA cables. You need to use the RBG cable or a HDMI cable.
PS2 uses a TV to connect not a monitor
Yes, you can connect a passive monitor speaker to an EMX 5000.
No. You need a ethernet cord and a modem to connect to the internet. A monitor displays the image.
You can connect a CATV cable into a computer monitor by first attaching it to an external TV tuner. A VGA or HDMI output can then be attached to the monitor.
Most web cams come with a clamp or something similar to sit on the monitor. If your wondering how to connect it to a port you would have to know what kind of port it uses. Firewire, USB or ethernet.
Yes you can, just use a VGA cable and that will typically allow you to connect a laptop to a monitor. Once you connect the monitor, you need to go to your properties and allow the monitor extend the screen.
Yes, it is very possible to connect your PS3 to a computer monitor. To do this you will need to purchase a converter cable from PS3 to monitor input and use this to connect your PS3. The only drawback to this is your PS3 will not be outputting in HD, only SD.
no
monitor
You connect a PS2 to a TV not a computer monitor.
You have to press something like Fn+monitor symbol in your keyboard after monitor is connected.
Basically you need VGA port to connect a monitor with laptop or now you can use HDMI port as well if your monitor has HDMI port too.