How do I know if my computer has USB ports?

How to determine on which Root Hub Port is connected a usb usb a slot slots installed If your laptop does not have an SD card reader slot, you can easily buy an inexpensive USB adapter MicroSD Card Reader usb slot Most electronic devices have a port, , where a USB cable gets plugged That “place” or slot is called the port As you can guess, this port

usb slot types LG Lcd has a usb slot but when I insert any device like pendrive with images or videos or connect didicam with it it does not work