This page shows the common connections (VGA, HDMI) for connecting a portable or mobile electronic device to a projector, a flat panel TV, or a teaching station, in order to show the visual and audio content from the laptop or tablet to a larger group of people. As well as types of adapters that can be used with these common connections so that you are able to use any type of connection. Example: If you would like to use a HDMI cable but, do not have the port on your computer for it you can get an adapter to a port that is on your computer. For types of adapters you can use reference this link (ADAPTERS)
Most laptops have the ability to connect a VGA cable straight to the laptop. If you have a Mac or IOS device you will need a mini DisplayPort (Thunderbolt) or DisplayPort to VGA adapter. This connector is used to connect computer displays. If you want sound to play you must have a VGA, and AUX cord connection that is all-in-one to plug into your headphone jack. (Reference the third image below on what this connection with the AUX cord looks like) (Image below is of a VGA (male) connector).
(VGA cable with Aux cord connected to it )
Some laptops have this connection available if not you will need a DisplayPort (or thunderbolt/MiniDisplayPort) to HDMI adapter. Some Mac devices have an HDMI connection built into the computer. HDMI is used to connect Digital High Def video and audio sources to display sources. HDMI plays sound through the main connection, so no AUX cord connection is needed. (See image below for what a HDMI connection looks like)
DisplayPorts are used on most laptops, and can be used with an adapter to connect either a VGA or HDMI cable to the computer. DisplayPort is similar to HDMI, but it is better for computer displays. Some Mac brands have a DisplayPort connection. (Reference picture below for image of a DisplayPort).
MiniDisplayPorts are associated with some Mac models, and some HP Z-book laptops. It can be a way to connect HDMI or VGA to a computer by using an adapter if you do not have a HDMI or VGA connection. (Reference picture below for image of a MiniDisplayPort/Thunderbolt).
These can be used to charge electronics or transfer data from one device to another. It can also be used to connect a new Macbook Air, a newer tablet, or a cell phone to a display. You can get an adaptor that can be used with USB and HDMI connectors (Reference the picture below for image of USB-C).