So, 2 ohm stereo stable means that in stereo mode (two channels) it can play as low as 2 ohms. 4 ohm stable bridged means that when you bridge the amp (combine the channels, also called mono) it can only play to 4 ohms.
Definition: Wireless (or wi-fi) hotspots are essentially wireless access points providing network and/or Internet access to mobile devices like your laptop or smartphone, typically in public locations. Wi-Fi Hotspot Security-Before You Connect to a Wi-Fi Hotspot. 2  International Wireless Internet Service: Wi-Fi Internet Access On the Go. 3  Mobile Internet Access Comparison: 3G, Wi-Fi, & Other Internet on the Go Options. 4  Wireless Networking FAQs for Mobile Workers.
This means that when you turn your computer on in a WiFi hotspot, the computer will inform you that the network exists and ask whether you want to connect to it. If you have an older computer, you may need to use a software program to detect and connect to a wireless network.