technical: a group of people used in a study who have something (such as age or social class) in common. Depression was a common problem for people in that age cohort.echnical: a group of people used in a study who have something (such as age or social class) in common. Depression was a common problem for people in that age cohort.
Wi-Fi is the name of a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. A common misconception is that the term Wi-Fi is short for  wireless fidelity , however this is not the case. Wi-Fi is simply a trademarked phrase that means IEEE 802.11x.
7. A hidden wireless network is a wireless network that isn't broadcasting its network ID (SSID). Typically, wireless networks broadcast their name, and your PC âlistensâ for the name of the network that it wants to connect to. Because a hidden network doesnât broadcast, your PC can't find it, so the network has to find your PC.