●    It was easy to install and required no special installation.
●    It used the computer's resources and therefore didn't require any specialized hardware for the controller.
●    It only required one keyboard, mouse, and monitor.

●    Couldn't handle too much data on the screen at once.
●    It wasn't able to create a seamless display from multiple monitors.
●     Not able to do teleconferencing.
●    It Couldn't generate complex graphics.
●    It couldn't send live data out of the PC, such as timecodes and other bits of information that would have added functionality to the information displayed on the video wall.
●    Computers were costly in those days.

●     It was more powerful than the 1st generation of video wall controllers.
●     It handled more data on the screen at once, allowing more extensive and more complex displays. 

●    The new architecture allowed for a wider variety of displays and picture resolutions than in previous systems, as well as better image quality since it could handle images with much more data at a higher resolution than before.
●     It could handle larger screens so that you could use multiple monitors or projectors on one screen (like in conference rooms).

●     Lack of scalability and flexibility.
●     It is limited in the number of connections it can handle.
●    It requires a more powerful and expensive computer to run and specialized hardware to handle the video wall controller itself. 
●    It was limited by the processing power, storage capacity, and memory of the processor in your PC. This means that having a slow PC or an older one with no upgrade path will limit your options for video wall controllers.

●    Third-generation video wall controllers contain some of the same features as second-generation systems but with many more improvements and additions, especially in terms of scalability, versatility, and performance.

●    Higher-quality images and more seamless video walls can be created with third-generation systems because they can transmit higher-resolution images without losing quality or requiring separate equipment. 

●    These systems are also easier to use than second-generation options because they require less specialized hardware and can be configured or managed within the network itself. They also feature more powerful and intuitive controllers and software that makes configuring a video wall much easier.

●    With the advent of the Internet of Things, third-generation systems easily connect to devices and control remotely. 

●    Higher resolutions can be achieved with third-generation systems because of better and more sophisticated video wall controllers that can handle much more significant amounts of data in a resolution. 

●    They have greater display flexibility because they are compatible with different types of displays and projectors and can handle different kinds of media formats, such as VGA and DVI. 

●    Some of the most advanced features, such as scaling and cropping, are available for all devices. This means that employees can have a top-of-the-line video wall on their desktop screen and one on their tablet or notebook screen if they want to. 
●    There is more versatility when using these systems because they offer multiple output connections and can be used with different displays and projectors.
●    The image quality with these systems is higher than other generations because they can send high-resolution images over the network, even at high speeds.
●    More powerful processors mean that the video walls can be used for more than just displaying static images. They can be used to create presentations and videos that are interactive. 
●    Users can easily connect to other devices in real-time, without worrying about losing any image quality when combining with this technology.

●    Sometimes hard to configure due to newer architecture and technology - need some training from third-party consultant and technician. 

●     Expensive.
●    Some of the newest designs are not as easy to install as older models, which can create difficulties for the end user. 

●    Includes video wall management software.
●    LED-based technology makes them extremely lightweight, easy to install, and incredibly small.
●    The ability to handle HD streaming from multiple sources in one system means that users no longer have to deal with wrong sources and poor image quality.
●    They can be easily scaled up or down, which means that it is a good choice for boardrooms with many employees or executives.

●    It is more expensive than 4th-generation controllers.
●    It needs some training from third-party consultants and technician 
●    Some of the newest designs are not as easy to install as older models, which can create difficulties for the end users.

Video walls have become an essential part of a modern office layout. Many companies have installed them not just in their conference rooms but also in break areas and offices to allow employees to collaborate. 
As technology develops, video walls will become even more sophisticated and user-friendly. Users can get more functionality out of video wall controllers without having to make a trade-off in image or video quality. This means they can use them in many new applications.