People use computers in many ways; business, computers are accustomed track inventories with bar codes and scanners, check the credit status of consumers, and transfer funds electronically, personal use.
Computer software, or
applications, exist to help every level of education, from programs that teach
simple addition or sentence construction to programs that teach advanced
calculus. Educators use computers to trace grades and communicate with
students; with computer-controlled projection units, they'll add graphics,
sound, and animation to their communications. Computers are used extensively in
research to unravel mathematical problems, investigate complicated data, or
model systems that are too costly or impractical to make, like testing the air
flow round the next generation of aircraft.