$put_perv_real = "/home/www/dvakompa-ru/dopol/"; ?>
* A good quality 2.5A power supply can be used if downstream USB peripherals consume less than 500mA in total.
Beginners should start with the NOOBS (New Out Of Box Software) operating system installation manager, which gives the user a choice of operating system from the standard distributions.
SD cards with NOOBS pre-installed should be available from any of our global distributors and resellers. Alternatively, you can download NOOBS.
Raspberry Pi OS (previously called Raspbian) is the recommended operating system for normal use on a Raspberry Pi.
Find help with installing Raspberry Pi OS on your Raspberry Pi in our online Getting started guide.
You can browse basic examples to help you get started with some of the software available in Raspberry Pi OS, find more detail about Raspberry Pi OS, or read information on fundamental Linux usage and commands for navigating the Raspberry Pi and managing its file system and users.
Raspberry Pi 4 Model B will remain in production until at least January, 2026