Yes, the Nexus 7 has a Micro USB 2.0, that is used for charging and syncing media.
The USB port is located at the bottom edge of the tablet, where you can plug the charger cord into it and plug the other end into the computer or into the wall charger attachment.
No, the Nexus wireless charger does not have an internal battery. It requires the micro USB charger for it to wirelessly charge a Nexus 7 (or Nexus 4 or 5).
The Nexus 7 uses an OTG micro USB (micro-B) cable. It is facing with the wider side facing up and connects to the bottom of the Nexus 7. The other side can either connect with the plug outlet, or you can use the USB and connect it to a computer.
Move the files from the SD card to a computer. Then connect your device to the computer via USB cable and move them to the Nexus 7.
There's no real fix to the Nexus 7 charger, but you can use a standard micro USB charger, or a wireless charger (Qi standard) to recharge the device.
No, it won't. The original Nexus 7 only allowed for micro USB charging or use of a dock to connect to the docking pins.
Yes, it is possible to copy the files from a Nexus 7 to a computer via micro USB cable (or use an app such as Air Droid without the need of a cable), then transfer them over to another Nexus 7. You can also send files directly from one Nexus 7 to another one (or really any Android device to another Android device) either by NFC or Android Beam.
It should work for the Nexus 7, as it works for newer Android smartphones. As for the iPhone 5, you will need an adaptor to use a HML to HDMI as it doesn't use micro USB.
There are various types of Nexus devices, but the Nexus 7 is part of that same family.
The 2012 Nexus 7 came out on July 2012. The 2013 Nexus 7 came out on July 2013.
One way is you could copy the CD music into an MP3 format on a PC, then transfer it via USB cable from PC to the Nexus 7. Another way is having the MP3 copy uploaded to Google Music. Then, you can play that CD music streaming on a Nexus 7 (or any device regardless of platform), or if you're not connected, you can configure it to be played in offline mode.
Yes. You can do this by connecting it via the provide USB-to-Micro-USB Cable.
The 2012 Nexus 7 debuted on July 2012. The 2013 Nexus 7 debuted on July 2013 (August 2013 in Canada).