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Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Laptops are practical because you can take them with you. However, laptops have a relatively small screen. If you work on a mobile computer, it quickly becomes annoying to constantly switch programs.

The difference between 1080p, 1440p, and 4K monitors lies primarily in the number of pixels and the refresh rate. While 1440p monitors have more than 1.5 times as many pixels as their 1080p ...