A:Answerit is an hdmi monitor. I would recommend it but not sure for gaming because I'm not a big gamer. I would recommend it to anyone who wants a very nice quality monitor.
A:AnswerNo, this is just a display and you will need a tower(CPU) to make it a complete working PC. You can have a look at Dell's All-in-one systems where all the required system components are integrated with the display.
A:AnswerYes, you can mount it on a different stand and here are the dimensions of the monitor: https://dell.to/2D5We5Z
Also, if you're using other mounts, please ensure that they are VESA compatible.