RAM (Random Access Memory) is the working memory expressed in a number of GigaBytes (GB). RAM is used to (temporarily) store (processor) data and is very decisive for the speed of applications and websites.
Hopefully this summary was good enough to explain what is RAM. However, we invite you to read on to learn a bit more.
How much RAM do I need?
Let’s take a look at a wonderful Cloud hosting company. Their cheapest shared web hosting plan offers 5GB of RAM which is more than enough for a single website. The most expensive shared plan has a whopping 25GB memory good for unlimited websites.
By the way, I use this Cloud Hosting Service myself on a daily basis and I love it!
For your convenience there’s also a video about the same subject: