web后端开发涉及的技术栈：
解释：
- Operating system - The OS that’s installed on the server before anything else. Usually, it’s either Windows or Linux.
- Web server - A component that synchronizes communication between browsers, mobile apps, and the backend server. It uses HTTP/HTTPS to transfer data between both ends.
- Databases - User information, transactions, products, and other data are stored in a database. MySQL, PostgreSQL, and MongoDB are commonly used in web dev.
- Storage - Documents and images require secure and reliable storage on the backend. This is where AWS S3 and Firebase Storage comes into play.
- Hosting - A service that enables websites to be published on the internet. Reliability, security, and speed are vital in choosing the right hosting provider.
- Programming language - Various programming languages have been used to develop the backend application. Popular ones are Node.js, Ruby on Rails, and Java.
- Web development frameworks - Backend frameworks reduce development time by providing templates, structures, and components to build on.