In the past, knowledge was stored in books. Today, we store knowledge on the Internet. Do the advantages of this development outweigh the disadvantages?

Nowadays we live in twenty first century.twenty first century has a lot of conditions for people.For example smart phone, glass, machine’s and others.but among them, the most important are pdf and modern textbooks. All of modern and rich countries schools has a lot of textbooks, computer,big screen and other knowledge technology.This technology is important for […]