Imagine you need to send an important document(文件)far away as soon as possible. How would you do it? Chances are that you would use email or a smartphone app. However, for many people, the answer to that question is the fax machine(传真机).
The first fax machine was invented in 1843 by Alexander Bain. Then in 1964, modern fax machines became widely available. In the 1980s and 1990s, they were considered the fastest and safest way to send information.
With the development of technology, you might think email would have made the fax machine a thing of the past, but you'd be wrong. Fax use continues to grow by more than 12%every year. One explanation is that fax machines are still easier to use for documents that are written by hand. But the real reason for their continued use has to do with security(安全).
Email is convenient, but it can be hacked. This is a danger for governments, hospitals and other organizations. Using a fax machine allows information to go directly from one place to another without needing to be saved on a computer. It can then be kept in a physical location where it's more difficult to steal.
Fax machine technology grew quickly throughout the nineteenth and twentieth centuries, and it continues to develop today!