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When did personal computers become popular?

“Personal computers took off in the late 1970s and early 1980s with machines like the Apple II in 1977 and the IBM PC in 1981.”

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1) Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but are now out of date.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.

The energy consumption needs of technology

As late as 1993, high-tech paraphernalia like computers, printers and video games had a negligible effect on power usage. Today, it's estimated to account for more than 13 percent of a typical household energy budget. By 2020, it could be as much as 25 percent

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

“Personal computers took off in the late 1970s and early 1980s with machines like the Apple II in 1977 and the IBM PC in 1981.”

More from this shelf

What are the different types of laptop batteries?

The energy consumption needs of technology

How many people use the internet?