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MySQL General Architecture

        MySQL operates in a networked environment using a client/server architecture. In other words, a central  program acts as a server, and various client programs connect to the server to make requests. A MySQL  installation has the following major components: MySQL Server, Client programs and MySQL non client  utilities.  MySQL Server MySQL Server, or mysqld, is the database server program. The server manages access to the actual  database (schema) on disk and in memory. MySQL Server is multi-threaded and supports many  simultaneous client connections. Clients can connect via several connection protocols. For managing  database contents, the MySQL server features a modular architecture that supports multiple storage engines  that handle different types of tables (for example, it supports both transactional and non-transactional  tables). Keep in mind the difference between a server and a host. The server is software (the MySQL server  program mysqld). Server characteristi