Resource Monitor a utility that displays information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time. Developed by Microsoft
License: Free
Resource Monitor is a Windows-specific tool with a user-friendly interface and real-time monitoring capabilities, making it ideal for casual users. In contrast, nmon is a lightweight, command-line based tool suited for advanced users needing detailed system performance metrics across multiple platforms.