Исправьте в тексте ошибки: using a computer, it can get a huge amount of information on various subjects, such as mathematics, biology, history and many others. can also download book and various video courses via the internet. i communicate with friends using the internet. also i watch different films. i think that modern man must have a computer. it carries out many function, which are not able to execute people without a computer. but my mother says that the computer can harm health. she also believes that the computer cannot replace the book and that the children stopped going to the library.