What Windows application is used to see current memory utilization in real time?
[ System Information | Memory Diagnostics | Task Manager | Device Manager ]

System Information

Data and details regarding the hardware and software environment of a computing device.

Memory Diagnostics

Tools or tests used to check and diagnose problems with computer memory (RAM), ensuring it's functioning correctly.

Task Manager

A Windows-based utility that displays memory and processor usage data and also displays currently loaded applications as well as currently running processes.