A chi-square (χ2) statistic is a test that is used to measure how expectations compare to actual observed data or model ...

The UNIX ping command lets you test network servers and latency. Here's how to use it in the macOS Terminal app. The UNIX ping command is a tiny UNIX network tool that allows you to test your network, ...

We test dozens of laptops every year here at ZDNET, and our testing process employs a dual approach. On one hand, we run a series of benchmarking programs to gather important system data and metrics.

The best way to tell if you’re getting what you’re paying for each month is by running a simple internet speed test. We'll show you how. Joe Supan is a senior writer for CNET covering home technology, ...

The world’s best artificial intelligence (AI) systems can pass tough exams, write convincingly human essays and chat so fluently that many find their output indistinguishable from people’s. What can’t ...

Since 1983, PCWorld has been testing PCs, and while we made the jump from paper to digital years ago, our mission remains the same: We’re here to help you make better choices about your PC hardware ...