Write short notes on the following: Video card and Network card

Video Cards: A video card, display card, graphics card, or graphics adapter is an expansion card which generates a feed of output images to a display. A Video Card is an expansion card that connects to a computer motherboard. It is used to create a picture on a display, without a video card, we will not be able to view anything on the screen. Most video cards offer various functions such as accelerated rendering of 3D scenes and 2D graphics, MPEG-2/MPEG-4 decoding, TV output, or the ability to connect multiple monitors (multi-monitor). Video hardware can be integrated into the motherboard but recently it has been integrated into the CPU, however all modern motherboards, and even motherboards from the 90's provide expansion ports to which a video card can be attached. Network Card: A network card or Network Interface Card (NIC) is a piece of hardware that allows a computer to connect to a computer network. Sometimes the network card is integrated on the motherboard. Each network card has a unique number, this is used for addressing. It is called the MAC address. There are two types of Network Cards: Internal Network Card: In internal networks cards, motherboard has a slot for the network card where it can be inserted. It requires network cables to provide network access. External Network Card: In desktops and laptops that do not have an internal NIC, external NICs are used. External network cards are of two types: Wireless and USB based. Wireless network card needs to be inserted into the motherboard, however no network cable is required to connect to the network.