What’s the Difference Between the Amazon Echo and Echo Dot?

Earlier this year, Amazon expanded their stable of Echo products to include the Echo Dot, the tiny sibling of the bigger Echo speaker. And now, before the year is even over, the company has shipped a newer, cheaper version of the Echo Dot. Let’s take a look at the similarities, differences, and when and where you would want to use each product.

What Is the Difference Between Three- and Four-Pin CPU Fans?

Once you have the opportunity to start looking inside multiple computer cases, you may notice that some CPU cooling fans have an extra wire compared to others. What is the difference between three and four wire fans? Today’s SuperUser Q&A post has the answer to a curious reader’s question.

What’s the Difference Between DDR3 and DDR4 RAM?

After using the same DDR3 standard for eight years, RAM manufacturers everywhere have begun the process of rolling out their latest memory chips in the form of DDR4. But what benefits (if any) does DDR4 have over DDR3 in real-world applications, and are they worth the increased cost?

PS4 vs Xbox One vs Wii U: Which One is Right For You?

The console wars. A test of will, strength, and perseverance almost as old as gaming itself. Over the past few decades companies from every corner of the technosphere have thrown their hat into the ring with one wacky system or another, with only a select few fighting through the fold to make their way to the top of the heap. These days, however, only three major manufacturers have survived to tell the tale: Nintendo, Microsoft, and Sony.