A Virtual classroom is an online learning environment .The environment can be web-based and accessed through a portal or software-based and require a downloadable executable file.
An interactive whiteboard (IWB) device is connected to a computer via USB or a serial port cable, or a serial port cable, or else wirelessly via Bluetooth or a 2.4 GHz Wireless. In the latter case WEP and WPA/PSK security is available.
A virtual classroom is a traditional classroom or training room. The instructors teach, and learn in real-time, face-to-face but via internet-enabled technology devices. Everything remains the way it is. The only difference is: an online classroom uses technology to support instruction and learning. The advantages of the class room Is offers more flexibility over a traditional classroom. You can deliver the a geographically dispersed audience at one time . Both the instructors and learners have rich experience of collaborating with other learners and instructors from around the world. The attendance is automatically tracked.