At the VA clinic that I use, the doctors prefer to send in prescriptions by computer; it goes straight from the doctor's computer to the pharmacy and is ready for pickup before the patient leaves. (I presume they use a strong password for this process, and I believe it's a closed system.)
However, I always ask for a hand-written prescription. The weird way the military works with VA system is this: if I use the VA computer prescription I have to pay a deductible; if I hand carry the hand-written prescription down the hall to the Navy pharmacy I pay zero. Duh!
When I explained that to my doctor she fully agreed with my request. She wasn't even aware of that loophole.