Computer technology continues to develop rapidly now. Many people are confused about maintaining public libraries because many functions of public libraries can be replaced by computer technology. You can also read travel books on your cell phones, such as an iPhone or iPad. You don't have to remember the time to go home. Second, while reading books in the library, people can make new friends and share what they have learned. This opportunity is rarely available while reading on a computer. Although, I think people need public libraries and computer technology to spread their knowledge.