There is a time when i want to know what kind of processors (CPU) i have, what is the speed, how much memory i have and so on. Unfortunately the built in software on ubuntu can't provide these kind of information.
So we need to install special program that can help us showing hardware information of our own computer. There is a program called 'inxi', with this program we can see what type of CPU we have, the speed, how much RAM, HDD, and other useful information.
To install 'inxi' on ubuntu you can do it like this:
You can run inxi, simply like this: