Ubuntu what is the difference between suspend and hibernate

I've a little knowledge about suspend and hibernate in Ubuntu and how does it work. But I've no idea about what are the differences between sleep and standby. In result what are the differences between these four often used terms in Ubuntu? I'll be very happy to get a good definition, and appreciate for the time given to answer this question.

Skip to content hibernate standby suspend I'm really confused about these keywords used in Ubuntu. Because of the large power saving, most laptops automatically enter this mode when the computer is running on batteries and the lid is closed. On switching the computer back on, the computer is restored to its state prior to hibernation, with all programs and files open, and unsaved data intact.

In contrast with standby mode, hibernation mode saves the computer's state on the hard disk, which requires no power to maintain, whereas standby mode saves the computer's state in RAM , which requires a small amount of power to maintain.

A third approach is to suspend to copy the contents to RAM , and then hibernate which would also copy the contents of the RAM to the disk, so the power on is faster than powering on a computer and restoring the state manually. Given this definition, the name Hibernate seems to make a little more sense. Suspend is the same as Sleep mode on MacOS, while Hibernate is something completely different, almost like shutting your computer down completely, but with the added benefit that the system state will be restored exactly as it was when the computer is rebooted.

Linux Mint and Ubuntu : Suspend vs Hibernate meaning. By Alvin Alexander. Last updated: February 16, Linux: How to get CPU and memory information.