Explain what it means? Where to read this for me to read
Answer 1, Authority 100%
The DigitalOCean cloud provider calls Thilets (drops) your virtual machines on Linux.
Each droplet is a separate virtual private server, DigitalOcean provides droplet management capabilities.
Read this in the Help on the DigitalOcean website. I also found such an article: DigitalOCean: Dating – Droplet, Floating IP, Firewall . Plus, Digital Ocean is used in selected application development lessons.