Computer Hardware Terms, Glossary and Dictionary

In terms of monitor, jitter means jumping or instability in the screen picture. Jittering of monitors are caused by hardware problems such as a slow refresh rate, a bad connection between the video adapter and monitor, a hardware malfunction in the monitor, or poor synchronization in the signals being sent; or a higher-than-usual local magnetic field level caused by nearby devices. In terms of network communication, jitter indicates the change in latency with time. This is a network problem that is very important to real time communications such as video and VOIP.

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jitter