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This course covers the first domain of the Amazon Web Services (AWS) Certified Development and Operations Engineer Professional exam — continuous delivery and process automation. With 42 lectures, it will give a quick introduction of the exam’s prerequisites, principles, benefits, and tips on acing the test. It will then discuss

With more and more smartphones launching with high refresh rate displays, it’s getting quite confusing for an average consumer to understand the variation and whether they really need it. Therefore, in this article, let’s have a look at the difference between 60Hz, 90Hz, and 120Hz displays, alongside the basics of each.

What is Refresh Rate?

Before we get to 90Hz and 120Hz, you need to understand what exactly is the refresh rate. For starters, the display on any device, be it on a phone or computer isn’t static. Instead, it always keeps refreshing to update the screen with the latest