The real tag line for moserial is “a serial terminal for the GNOME desktop”. However, since it’s installed just fine on my KDE desktop, hence the name. (It probably works on servers as well.)
So what is this moserial? It’s a terminal which allows you to connect to view or send data to a serial port. For example, a lot of mbed device or micro controllers, such as Arduino, can be configured to send/receive data via serial port. Before I found out about this program, I normally open up Arduinio IDE and connect to the Arduino via Serial Monitor function. Now, I never look back after using moserial.
moserial should be available on most Linux distributions, and on Ubuntu based distros, it can be installed as easy as:
$ sudo apt-get install moserial