Expansion Card in Computer – Types of Expansion Cards
An expansion card is a type of add-on device that plugs into a motherboard slot. These cards allow you to expand the capabilities of your computer system. You can use them to increase memory capacity, add additional ports, or even connect external devices.
For example, you might connect an external monitor or printer to expand the capabilities of your laptop. Expansion cards come in two varieties: PCI (Peripheral Component Interconnect) and AGP (Accelerated Graphics Port).
Types of Expansion Card
Different types of expansion cards are as follows:
1. Video Card
It is also called a video adapter or graphics card. It converts computer output into a video signal and sends it to the monitor to display. This card connects the motherboard to the computer monitor. The card contains Video RAM memory. The amount of memory located on the card must be enough to support the desired number of colors and resolutions.
Currently, it has a 32 MB capacity. Some modern video cards also have their own processors. The video card’s processor receives calls from the CPU that are intended for graphics processing. It significantly speeds up graphics processing.
2. Sound Card
Sound cards increase the sound-generating abilities of a computer. It inputs sound through the microphone and converts it into a form that can be processed by a computer. It output the sound through speakers.
Network Interface Card (NIC)
A network interface card is also called a network card. It allows the computer to communicate through the network. The network interface Card (NIC) is a small electronic device that enables a computer to communicate over a local area network (LAN). In addition to connecting two computers together, a NIC provides a connection between a LAN and a router or switch.
4. TV Tuner Card
A TV tuner card is used to watch television, capture video, and surf the Internet at the same time. It is also known as television boards and personal video recorder cards. It contains a TV tuner and video converter that changes the TV signal in a form that can be displayed on the monitor.
5. Modem card
A modem card is also called an internal modem. It is a communication device that enables computers to communicate via telephone lines or other means.