Computer Systems (Environmental Impact)
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What are the three main ways that we can try to cut down on the amount of energy used by our computers?
Monitor Settings Power Down Settings Standby
What are some of the settings that we can alter via the monitor which allow us to save energy?
Reduce brightness Don’t use a screen saver Using efficiency mode, if it is a feature
What are some of the settings that we can alter via the power down features which allow us to save energy?
Having a timer which automatically turns the computer off after a long period of inactivity Having a timer which automatically turns the monitor off after a long period of inactivity
What is Standby mode another name for?
Sleep Mode
What happens when a computer goes into a standby mode?
RAM continues to be powered Software in use is temporarily stored until the user resumes work Power to other components is significantly reduced
What is the other kind of power saving mode?
Hibernate Mode
What happens when Hibernate Mode is activated?
Contents of RAM are copied onto the hard disk Hard Disk saves a permanent copy Almost all components are completely turned off or are on very low power
Why do some people argue that using standby and hibernate modes is better than shutting the computer down?
Because starting up a computer after shutdown causes a surge in power to components