Many people have computers at home and use them at least intermittently, thats a great advantage. Starting from scratch is a long haul. Computerisation is a process, not an event, so it needs considerable time before every machine and person is happy. The patient database is the second most important asset of a practice. Computerised systems are complex, but thats not obvious to the user.
Many options are available.
Cost options add more complexity. Choice brings down prices, prevents domination of the marketplace by perhaps not the best product, but the GP market is relatively small, so too many players creates the risk of lack of longevity for software and hardware providers. There is no such answer - only a sliding spectrum from a completely manual to a completely computerised paperless practice. Various options may be selected from that spectrum to match need and cost. To cope, a systems approach is needed.