How-To Geek


Latency is an important measure of time delay in computer systems like networks and disk drives for how long the data takes to arrive. For instance, even if your network connection has a high total bandwidth, if there is a lot of latency it will be more difficult to play real-time computer games over the internet since each packet takes a while to transmit back and forth. The same thing is true of mechanical hard drives, which take longer to position the read head compared to solid state drives, which read directly from memory, making reading lots of small files much faster on an SSD.

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