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2. System Idle Process - Wikipedia

   en.wikipedia.org/wiki/System_Idle_Process

   However, the idle process does not use up computer resources (even when stated to be running at a high percent). Its CPU time "usage" is a measure of how much CPU time is not being used by other threads. In Windows 2000 and later the threads in the System Idle Process are also used to implement CPU power saving.

3. Task Manager (Windows) - Wikipedia

   en.wikipedia.org/wiki/Task_Manager_(Windows)

   Task Manager, previously known as Windows Task Manager, is a task manager, system monitor, and startup manager included with Microsoft Windows systems. It provides information about computer performance and running software, including names of running processes , CPU and GPU load, commit charge , I/O details, logged-in users, and Windows services .

4. Idle (CPU) - Wikipedia

   en.wikipedia.org/wiki/Idle_(CPU)

   Many operating systems, for example Windows, [1] Linux, [2] and macOS [3] will run an idle task, which is a special task loaded by the OS scheduler on a CPU when there is nothing for the CPU to do. The idle task can be hard-coded into the scheduler, or it can be implemented as a separate task with the lowest possible priority.

5. Processor power dissipation - Wikipedia

   en.wikipedia.org/wiki/Processor_power_dissipation

   As a processor model's design matures, smaller transistors, lower-voltage structures, and design experience may reduce energy consumption. Processor manufacturers usually release two power consumption numbers for a CPU: typical thermal power, which is measured under normal load (for instance, AMD's average CPU power)

6. Resource Monitor - Wikipedia

   en.wikipedia.org/wiki/Resource_Monitor

   Resource Monitor, a utility in Windows Vista and later, displays information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time. [1] Users can launch Resource Monitor by executing resmon.exe (perfmon.exe in Windows Vista).

7. Booting - Wikipedia

   en.wikipedia.org/wiki/Booting

   After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some process must load software into memory before it can be executed. This may be done by hardware or firmware in the CPU, or by a separate processor in the computer system. On some systems a power-on reset (POR) does not initiate booting ...