IV. Translate the following text into your native language:
Electronics has probably undergone more revolutionary steps than any other industry. There are three basic developments in electronics that have given birth to three completely new technological industries. The first large technological innovation was the introduction of radio-frequency energy. Microwaves alone offer unparalleled opportunities for communications to business and industry. The second of these was of course the translator and the associated solid-state circuit based on semiconductor technology. The third and latest technology is the laser. It is a light amplifying device having a broad range of applications. Lasers have potentialities for medical applications where the extremely narrow high intensity beam can be used for surgery or medical treatment.