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What did the transistor replace?

“Transistors replaced vacuum tubes, which were bulky, power-hungry, and burned out often, making electronics smaller, cheaper, and more reliable.”

Reference: Computer History Museum

What are the different types of laptop batteries?

There are currently three types of batteries commonly used to run people's laptops:
1) Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but are now out of date.

2) Nickel Metal Hydride (Ni-MH) batteries are a cadmium-free replacement for Nickel Cadmium.
3) Lithium Ion (Li-ion) is the battery you want for your laptop and is the current standard for portable power.

What was the first transistor radio?

The Regency TR-1, released in 1954, was the first commercially sold transistor radio.

How many people use the internet?

About 5.5 billion people, roughly two-thirds of the world's population, use the internet, according to the International Telecommunication Union.

Another fact

“Transistors replaced vacuum tubes, which were bulky, power-hungry, and burned out often, making electronics smaller, cheaper, and more reliable.”

More from this shelf

What are the different types of laptop batteries?

What was the first transistor radio?

How many people use the internet?