How does the iPAD communicate with the PC or printer?.
I suppose one will have to e-mail the doc to the other device, download and file for further reference or editing? Presumably this proceedure works the other way round as well?
One way is via
iTunes (there is a PC version) which allows transfer of certain types of files (e.g. music, movies, etc.) either cabled (USB) or wirelessly; there are also cloud services for file storage/transfer. In addition, iTunes is used to backup the iPad either cabled or wirelessly - e.g. read about
Dropbox.
As to a printer, the easiest option is to own one compatible w/
Air Print which allows wireless printing (e.g. I have a Canon w/ AirPrint - print from my den all of the time); if the printer is not AirPrint compatible, then other options exist (all via wireless technology).
What about live comms? Can you communicate remotely from iPAD to PC?
I can easily imagine one needing reference to a document,(say Minutes of a meeting last year), when using the device in a remote location?
Remote communication between a PC & iPad is possible - for an example, checkout
Splashtop, which is on my iPad & Macbook Pro (being retired I rarely use the app, so cannot provide any personal experience)
Do I assume that one would need cellular capability or rely on local hot spots of which she would be surrounded under normal conditions?
If a Wi-Fi only iPad is purchased, the she will need to be w/i reach of a wireless network, whether at work, home, or in a public hotspot, like a coffee shop. Cellular access would allow internet connection wherever a cellular signal could be obtained; also w/ the latter, the iPad can be setup as a Wi-Fi hotspot for others to connect to the internet.
Where can I read up on this on the internet?
For starters, look at the
iPad User's Guide for iOS 7; also, checkout
Apple Support - there are numerous KB articles on all of the topics above, just google 'Apple.....' followed by a term, such as AirPrint. Hope this helps - good luck.