In what year was the first transistor discovered?

The first transistor was discovered in 1947 by John Bardeen, Walter Brattain, and William Shockley at Bell Labs. However, it was formally announced to the public in 1948, which is why that year is considered significant in the history of electronics. The invention of the transistor marked a pivotal moment in technology, as it laid the foundation for modern electronic devices, leading to smaller, more reliable, and more efficient circuits. This invention replaced vacuum tubes, which were larger and less reliable. The subsequent development and commercialization of transistors revolutionized industries by enabling advances in computers, communication technologies, and countless other applications.