Computers are capable of processing information much faster and more reliably than the human brain as well as being able to store greater quantities of data. They have a number of useful applications.
In a variety of workplaces, for instance, from hospitals to banks, computers are used to maintain records and analyze data, among other tasks. A home computer might be used to store photographs, listen to music, play video games and keep in touch with friends and family via the Internet.
Today, there are a number of different kinds of computers, each suited to specific uses. Laptops, or notebooks, and the smaller netbooks, for instance, are lightweight versions of the more traditional desktop computers, ideal for portable use.