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.
Solar Costs. Solar panels range in cost based on the size of the system owners choose to install. A common rule is approximately $6 to $9 per watt of electricity that the solar panels produce.If you want to largely replace other electricity sources for a single family house, a full solar system can cost as much as $40,000.olar panels range in cost based on the size of the system owners choose to install. A common rule is approximately $6 to $9 per watt of electricity that the solar panels produce.