I have installed the package 'lm-sensors' and I use the command 'sensors' to check the temperature of my CPU. The output of the command is something like this:
acpitz-virtual-0 Adapter: Virtual device temp1: +52.5°C (crit = +93.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +46.0°C (high = +90.0°C, crit = +90.0°C) Core 1: +48.0°C (high = +90.0°C, crit = +90.0°C) dell_smm-virtual-0 Adapter: Virtual device Processor Fan: 3000 RPM CPU: +52.0°C Other: +44.0°C Other: +45.0°C
What does virtual mean here? What is 'isa' and 'acpitz'? Which one is the real temperature of the CPU?