a) In modern laptop, you can operate live projector through HDMI port or you can operate came-coder through laptop. HDMI means high defintion multimedia interface.
b) You can can also use extra monitor through VGA Port. VGA means video graphics array. In these port, there are 15 pin which are helpful to attach 2nd monitor.
c) You can also find 6 in 1 card reader which is useful for transferring data of video cards in laptop hard-disk.
d) There are 4 usb ports which you can use for attaching new keyboard, mouse, pan drive and extra hard-disk.
Recommended Purpose of Class : This class teaches students about the useful ports of any laptop.