The answer is smart card readers. Smart card readers can be implemented as part of an authentication system to verify the identification of employees.
It appears that they might be labeled "Hidden" in the properties of that file. Right Click on Properties and Uncheckmark Hidden<span />
The internet is a vast network that connects computers, cellular devices, and cable together from all over the world. There is wireless internet (Wi-Fi) which doesn’t use lines/cables to connect to devices. Cellular technology provides wireless internet access through cellphones. Finally there is satellite which travels an enormous distance from Earth to a satellite.
For me its chart graph because you're able to visualize the given numbers and its not confusing