What is a Raspberry Pi?
A Raspberry Pi is a very small, affordable, and compact computer. It was first introduced in the UK to teach programming to students. It became a very popular among hobbyists and caught the interest of engineers around the world, especially after 2016.
So, what are they made of?
Just like a regular desktop computer, Raspberry Pis have the same components, just on a smaller scale. It starts with the CPU, which is its processor that handles all the computations and runs programs. The CPU acts like the brain of the Raspberry Pi. It uses an ARM-based CPU unlike regular computers that use AMD or Intel processors.
The memory, or RAM, manages multitasking between programs. The more RAM your Raspberry Pi has, the better it can handle multitasking. Most models have about 2-4gb of RAM.
For storage, Raspberry Pi's use microSD cards instead of a traditional hard drive. The microSD holds all the program files and operating system. Chose wisely with the quality of the microSD card- no one wants a slow computer. You can also use external USB drives for more storage if needed.
Lastly, Raspberry Pis have input/output ports and an operating system. The ports allow you to connect to peripherals like monitors, mice, and keyboards. Raspberry Pi has its own operating system called Raspberry Pi OS, which it very beginning friendly. If you don't want to use the default OS, you still have the option to use other operating systems of your choice.
If so tiny, why use it?
Now that you understand that it basically uses the same components as a normal-sized computer, you might be wondering: 'Why not use use a regular computer?' That's understandable, but Raspberry Pis are much cheaper. If you are trying to learn a programming language and don't have to money for a regular computer, this is perfect for you. They are small, compact, and portal.
Different Models
Raspberry Pi's come in different models, each with its own purpose:
1. Raspberry Pi 4 Model B
Mainly used for desktop computers and heavy DIY projects. These models are a bit bigger than other models, and they are almost the size of a credit/debit card.
2. Raspberry Pi 3 Model B+
Very similar to the Pi 4 model, but this one is mainly used for robotics and learning.
3. Raspberry Pi Zero
These are very inexpensive since they are a little less powerful than the other models, but this model is mainly used for smaller projects and simple wearable devices.
How to get started?
Now that you know a little bit about Raspberry Pis, let's talk about what you need to make your own tiny, full working computer.
You need a Raspberry Pi board, and make sure you choose the model that matches the project you want to make. Then, add a microSD card and power supply - don't forget the power supply in order to turn it on! You can also get a case to keep all the components from getting damaged. Lastly, you'll need some type of display, keyboard, and mouse. If you don't have a monitor, don't worry- you can access it via SSH from another computer.
There are many tutorials online that provide more details on setting things up, so make sure to do your research before you begin!
Conclusion
The Raspberry Pi may be small, but it's packaged with so many possibilities. With just a few components, you can make it into a computer, gaming console, or even a tiny robot. The Raspberry Pi community is super helpful and very inspiring. These tiny computers are a perfect starting point to expand your tech skills. So, pick a model, set it up, and bring your ideas to life!
https://www.raspberrypi.com/
https://www.raspberrypi.com/products/
https://en.wikipedia.org/wiki/Raspberry_Pi
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