Your iPad's About Setting
The About setting (under the General settings panel) on your iPad is full of trivial (and not-so-trivial) information about the device. What you find here is straightforward:
Network you use (3G or 4G only): AT&T or Verizon
Number of songs stored on the device
Number of videos
Number of photos
Number of apps
Storage capacity used and available: Because of the way the device is formatted, you always have a little less storage than the advertised amount of flash memory.
Software version: As the software is tweaked and updated, your device takes on a new build identifier, indicating that it’s just a little bit further along than some previous build. So you see, in parentheses next to the version number, a string of numbers and letters that looks like 10A5376e and tells you more precisely what software version you have.
The number/letter string changes whenever the iPad’s software is updated and is potentially useful to some tech support person who might need to know the precise version you’re working with.
Carrier and cellular data (Wi-Fi + 3G or + 4G versions only): Yep, that’s AT&T or Verizon in the United States.
Serial and model numbers
Cellular Data Number
IMEI, ICCID, and MEID: These stand for International Mobile Equipment Identifier, International Circuit Card Identifier, and Mobile Equipment Identifier, respectively. They live up to their geeky acronyms by helping to identify your specific device.
Modern Firmware: The version of your iPad’s firmware, which is a combination of hardware and software, that helps your iPad function as an iPad.
Diagnostics & Usage: Choose whether to automatically send diagnostic data to Apple.
Legal Notices, License, and Regulatory: You had to know that the lawyers would get in their two cents somehow. You find all the fine print here. And fine print it is because you can’t unpinch to enlarge the text.