From my expernice and observation,I have sevaral factors,which denfind the statment that computer is important.the computer is humankind'sgreatest invention in this century.first of all,the student don't have to spend their time by writing and re-writing many paper and my use useful featuring such as "copy","save","delect",etc.. Also,they don't need to write down lecture because they have it in their computer.finally, The computer has many benefints in officces and communties sush as copy and save important files,printer,and scanning.To sum up ,I can't image our life without computer