Raspberry Pi cases are protections that are used to protect Raspberry Pi boards from dust, dirt or physical impact.
Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a standard keyboard and mouse. It is a capable little device that enables people of all ages to explore computing, and to learn how to program in languages like Scratch and Python. It’s capable of doing everything you’d expect a desktop computer to do, from browsing the internet and playing high-definition video, to making spreadsheets, word-processing, and playing games.
Raspberry Pi has the ability to interact with the outside world, and has been used in a wide array of digital maker projects, from music machines and parent detectors to weather stations and tweeting birdhouses with infra-red cameras.
Raspberry Pi runs an operating system based on Debian and Arch Linux. The main programming language of the system is Python. Since t is an open source platform you can find various apps or libraries created by developers or users for free.