In a distributed database system, a program often referred to as the database's back end runs constantly on a server, interpreting data files on the server as a standard relational database. Programs on client computers allow users to manipulate that data, using tables, columns, rows, and fields.
A solar energy system big enough to power a computer and a few other small items might cost you about $700 to $1000. These are also well suited for RVs, boats and camping. Learn more about portable solar energy units.
The typical residential solar system will cost between $12,000-$20,000 once solar rebates and incentives are taken into account. However, this is a small price to pay given that you will probably spend over $72,000 on electricity over the life of your solar system.