Can you buy in Binance?

Excuse me, could you please clarify something for me? I've been hearing a lot about Binance lately and I'm curious if it's a platform where one can actually purchase cryptocurrencies? If so, how does the process work? Are there any specific steps or requirements I need to fulfill before I can start buying on Binance? Also, is there a variety of cryptocurrencies available for purchase on the platform, or are there limitations in terms of what can be bought? Thank you for your time and consideration.