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.
13 Cost of Solar Panels & Cost of Solar Power Charts &Graphs. 1. The average cost of solar panels has gone from $76.67/watt in 1977 to just $0.613/watt today (the second figure is according to PVinsights, and is even lower than the 2013 projected price in the chart below).. The average cost of solar panels has gone from $76.67/watt in 1977 to just $0.613/watt today (the second figure is according to PVinsights, and is even lower than the 2013 projected price in the chart below).