The monitoring card is a key component in building a monitoring system. It is not part of the standard computer configuration, but rather hardware added according to specific requirements. It is mainly used to receive and process video signals from cameras or other video sources, and convert them into digital formats for storage or real-time transmission.
If you plan to build a monitoring system and want to digitize and store video signals in a computer, or remotely monitor through a network, then purchasing a monitoring card is usually necessary.
However, it is worth noting that with the development of technology, there are now many software based monitoring solutions on the market that may not require specialized monitoring cards. These software can directly use the computer's CPU and GPU to process video signals and store video data on a hard drive or transmit it over a network. These software solutions may be more flexible and cost-effective, especially for small monitoring systems or home monitoring.
Therefore, before deciding whether to purchase a monitoring card, it is recommended that you evaluate your own needs and consider whether there are more suitable software solutions available. If you need to handle a large amount of high-definition video streams or have high requirements for video processing performance, then purchasing a dedicated monitoring card may be a better choice. If you only need simple monitoring functions or have a limited budget, then software solutions may be more suitable for you.