Which of the following is NOT considered a viable monitor type for video systems?

In the context of video monitoring systems, smartphones typically do not serve as viable primary monitors for several reasons that contribute to their limited effectiveness in this role. While they are incredibly versatile devices capable of accessing video feeds through apps, they lack the display real estate and resolution that dedicated video monitors offer. Video surveillance often requires continuous viewing and analysis, which is more suited to larger screens that can display multiple camera feeds simultaneously.

On the other hand, fixed LCD screens, multi-screen plasma setups, and laptops are designed for longer viewing periods, enabling efficient monitoring and interaction with video content. Fixed LCD screens provide reliable performance for single-channel monitoring, multi-screen plasma setups can manage several feeds at once, and laptops are portable yet powerful enough to handle video tasks effectively. Thus, their capabilities make them far more suitable for monitoring video surveillance systems compared to smartphones, which may serve well as a secondary device but are not ideal as a primary monitor in professional settings.