Introduction to the Raspberry Pi

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https://www.raspberrypi.org/about/

"The Raspberry Pi Foundation is a UK-based charity that works to put the power of computing and digital making into the hands of people all over the world. We do this so that more people are able to harness the power of computing and digital technologies for work, to solve problems that matter to them, and to express themselves creatively."

https://subscription.packtpub.com/book/hardware_and_creative/9781784397975/1/ch01lvl1sec08/history-and-background-of-the-raspberry-pi

The prototype:

What type of CPU does the current version have?

The following output is a comparison of CPU architecture between the RPi and my cell phone.

This was accomplished using the lscpu command.

Note: Commands and the command-line using the terminal will be introduced in detail in later chapters.

pi@serverNine$ lscpu

Architecture: armv7l

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u0_a127@phone$ lscpu

Architecture: armv7l

The conclusion is that the RPi and my cheap cell phone use the same CPU architecture.