The term 'computationally expensive' means that a given mathematical function, code or an algorithm has high computational complexity. In addition, the mathematical function or algorithm will require several steps and procedures to be completed. Based on this, the statement made in this question is not true.
The tool that allows to configure a custom console is "mmc.exe".
Explanation:
MMC is a Microsoft Management Console. It is used to customize the management console and add the tools in console that are required by the technician.
