Skype’s originally proposed name was “Sky Peer-to-Peer” which then became what we know today as Skype.
Despite the popularity of this application some people are actively searching for alternatives that are easy to use. Sometimes the hassle of downloading and installing an application just isn’t’ your cup of tea.
A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.
When "captured" by the computer, the video stream may be saved, viewed or sent on to other networks via systems such as the internet, and emailed as an attachment.
From my experience with it, it works very well, the video and audio quality is clear and I've noticed little to no stuttering or lag.
Skype is probably the most popular video-chatting software out there. Now people use “video-chatting” and “Skyping” interchangeably whether they’re using Skype specifically or not.
In other cases you may be in a situation where you don’t have access to Skype or you’re not able to download it for the time being.