its an internal app. In settings there is a internal camera app. If that app isnt active then the camera wont work. (unless you sideload a camera apk)
Rather than explain this here, I will let Zebra do it.
TC51 Touch Computer Support & Downloads | Zebra
To be clear, anyone with about 2 grand to drop can buy a TC-51.
Amazon.com: Zebra TC51 - PDAs, Handhelds & Accessories / Office Electronics: Office Products
As I expected they simply use a custom apk for the scanning etc.
To be clear here:
I am not advocating this following statement. Just explaining how things work.
If you did buy a TC-51, all you need is the password of the secure wifi and the apk. I know this won't be allowed but there you go.
Also, and I don't think anyone would actually care about this:
Zebra TC51/56 Trigger handle Incl rugged boot kit, KT-TC51-TRG1-01 (Incl rugged boot kit) $250
Holsters/rugged boots $90
So if you are wondering why CA would be applied if you lose them or damage them. This is the reason why.