Why are legacy system replacements costly and risky?

Q: Why is system evolution inherently costly?

A:

Q: While switching from batch processing to serial processing, what do you think is the most important…

A: INTRODUCTION: Batch processing: The procedure that is used by computers to finish high-volume,…

Q: Processes in operating systems are a mystery.

A: Introduction: A computer system's running software or applications are referred to as processes. The…

Q: The operational mechanics of operating systems are not within the realm of human expertise.

A: The answer is given below step.

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.