What system databases are available in MS SQL Server?

In MS SQL Server, there are several system databases that ensure the operation of the server and data management:

• master — stores information about the server configuration, all databases, logins, settings, and other system objects.
• model — a template for creating new databases. When a new database is created, the contents of model are copied.
• msdb — used for managing SQL Server Agent jobs, schedulers, backups, and restores.
• tempdb — a temporary database for storing temporary tables, table variables, cursors, and intermediate results.
• Resource (hidden) — contains system objects and is used for updating system tables without overwriting.

These databases ensure the stable operation of the server and resource management.