chould you please help me collect my paragraph.Are all tenses collect? Professor Sanchez gave a lecture on transistors last Tuesday. First, he explained what transistors were. He said that they were very small electronic devices used in telephones, automobiles, radios and so on. He further explained that transistors control the flow of electric current in electronic equipment. He wanted to know which popular technological invention cannot operate without transistors. Most students agreed that it is the personal computers’ speed and data microchips, and these transistors increase computers’ speed and data storage capacity. Then he asked the class when transistors had been invented. Sergei guessed that they were invented in 1947. The professor said that he was correct. Professor Sanchez then asked what the importance of this invention was. Many students answered that is was the beginning of the information age. At the end of the lecture, the professor assigned a paper on transistors. He requested that each student chose a topic by next Monday. He suggested that the papers were typed.