It is now the age of technology.Every day new technology appears,ranging from mini-CDs that contain entire encyclopaedias to giant space telescopes that can send pgotographs of distant stars back to Earth.Of all the new technological wonders,personal computers have probably had the grestest influence on daily lives of average people .Through computers,people can now talk to other in any country,research any topic,work,bank,and entertain themselves.This essay will outline how personal computers have especially revolutionized communication and business practices in the past twenty years.