Answering When Was Vacuum Tube Invented Mcq

Well, topic of the day is when was first vacuum tube invented mcq. Well, we could answer that in one word. But, the purpose of the article is to let people know the brief history of vacuum tube and its importance in our lives.

For now, know that Sir John Ambrose Fleming did the trick to invent the vacuum tube at first during 1904. He was the father of vacuum tubes. Gradually, people made transistors and built the technology world we’re living on right now.

Details on Vacuum Tube Invented Mcq

Well, if you’ve heard about the electron tube, know that, it’s the same as a vacuum tube. It’s mainly a glass (sealed) to control the flow of electrons. Now, we need to know where does it control the flow of electrons. It controls the flow in between the electrodes that are inside of the tubes. However, the vacuum does the trick of removing air from the inside of the tubes. The primary purpose of vacuum tubes is to enhance weak current. Moreover, it can also transfer AC current to DC current as well.

Also, vacuum tubes can also generate oscillating frequency for radio and radars. Until the 1900s , there was no vacuum tube. However, during the 17th century, there was similar tubes. But due to the shortcomings of the technology, it was not possible to make full vacuum tube with the ultimate benefits and structure.

Even during the 2oth century, people used vacuum tubes in a great extend for the production of electronics. Back then, there was televisions with cathode ray tubes. Well, now we have got LCD and LED tv.

Brief History of Vacuum Tube

Now, talking about the brief history of vacuum tube. So, we must mention the name of John Ambrose Fleming for this purpose. He was born in 1849 and died in 1945. But, in the year of 1904, he invented the vacuum tube for the first time. Back, then it was also known as thermionic valve or Fleming Valve.

But, people also called it the vacuum diode. Fleming was brilliant to contribute to other aspects of technology as well. During his lifetime, he worked as an consultant of many electronic companies. One of the most famous company back then was the Edinson Electric Light Company.

Fleming was also a mentor or teacher at an University. He was also author of many books and scientific papers. The estimation is around 100 or more. The most famous book was “the propagation of electric currents in telephone and telegraph conductors”

The Vacuum Tube of Fleming

Thomas Edison, during the 1880 year also made a nearly same vacuum tube. But, he failed to put that in use. So, Fleming’s tubes was based on the Thomas’s idea. However, Joseph Hammer, working with Thomas, later worked with Fleming to add another electrode to the filament of a light bulb.

The name of Hammer comes due to his contribution to light bulbs we use today. He took the idea of a light bulb by noticing a blue glow of a vacuum bulb. However, that time he wasn’t sure about the phenomenon. But, Edison did the trick to patent the bulb and from the, we know it as the Edison Effect. Well, till now it was the time of Edison and Hammer.

Based on the work of hammer and Edison , Fleming made an incandescent light bulb with an extra electrode. His light was better, with the help of the idea of Hammer and Edison. Basically, due to the extra electrode, the filament got heated and the bulb used to produce the light. There’re more technical side of this phenomenon, but we, kept it simple for you to understand.

FIRST GENERATION: VACUUM TUBES (1940-1956)

Now, we’re talking about the first generation of vacuum tubes. At first, computers were huge, and almost needed a whole room for the storage. Back then, the computers had vacuum tubes in the circuitry and also had magnetic tape or drums for the purpose of storage. Also, heat generation were high form those computers.

Machine language was the key of first generation of computers. It was the most lowest programming language back then. Now computers only understand the binary language. That mean, 0 or 1. There was no keyboard back then. If you had to input something, you had to do it with the help of cards or tapes. Outputs could be seen if you could print something.

Overall, it was very critical to use the first generation computers which used vacuum tubes for the purpose of circuitry. Univac is one of the names of a first generation computers. Actually, they were computing devices or a big calculator, you can say.

SECOND GENERATION: TRANSISTORS (1956-1963)

The second generations of computers were a bit better than the first generation one. Transistors came into action in place of the vacuum tubes. However, it all started to get widespread from the 1950s.

Transistors are better than the vacuum tubes for obvious reasons. The circuitry became simple and as a result, computers could shrink in size and got faster.

Final Thoughts

So, you can understand the brief history of vacuum tubes. Vacuum tubes had made a real spark in the technology sector during the 1900s and early 1800s. It was used in the computer circuitry as well as the bulb filaments.

Well, now with the advance of technology, the computers got smaller, and faster. But, it all started from the first generation computers. People, with the help of advancing technology used transistors to make computer smaller.

But, the first generation computers used vacuum tubes to manage the circuitry inside it.