Shutdown or Restart?

[BadDudes]

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I was ask by a youngster and I find it quite odd but I think it make sense
Naa ba difference (hardware level) when you do shutdown and manually restart it? Or simply do a restart command?

[poldopunk]

shutdown is completely turning off a computer - the operating system terminates all applications then instructs the computer to cutoff power. using the reset button is similar to a cold boot, power is cutoff temporarily then all the hardware components are re-initialized. a software restart is similar to a cold boot a warm boot but done properly since you are giving the operating system ample time to save changes and terminate application as compared to a reset where the cold boot is performed via hardware without the operating system's consent (). in addition, Ctrl + Alt + Del is also a warm boot for reasons I don't know why.

i'm not an engineer so i could be wrong, feel free to correct me though.

**edit**

i would like to correct myself: a restart via the operating system is a warm boot.

[shockwave]

master poldo...salamat sa imong info...karon naa nako idea bahin aning reset button ug restart sa windows...

[poldopunk]

OT: di ko master uy, i just read a lot.

[reishoto]

doing restart always, as in hardware restart could possibly damage your memory and hard drive. when pc restarts, hard drive mechanism is set to the first readable sector or the MBS automatically. pag u let software do this, its not going to be sudden. memories are also prone to damages due to sudden lost of power and sudden renewal of power..

ikaw kuno kusion kalit, hehehe...

[poldopunk]

here's a clearer answer and very well explained from wikipedia [citation needed]

Hard reboot

A hard reboot (also known as a cold reboot, cold boot or cold start) is when power to a computer is cycled (turned off and then on) or a special reset signal to the processor is triggered (from a front panel switch of some sort). This restarts the computer without first performing any shut-down procedure. (With many operating systems, especially those using disk caches, after a hard reboot the filesystem may be in an "unclean" state, and an automatic scan of on-disk filesystem structures will be done before normal operation can begin.) It may be caused by power failure, be done by accident, or be done deliberately as a last resort to forcibly retrieve the system from instances such as a critical error or virus-inflicted DoS attack. It can also be used by intruders to access cryptographic keys from RAM, in which case it's called cold boot attack.

[edit] Soft reboot

A soft reboot (also known as a warm reboot) is restarting a computer under software control, without removing power or (directly) triggering a reset line. It usually, though not always, refers to an orderly shutdown and restarting of the machine.
The Control-Alt-Delete key combination on the original IBM PC was designed to allow a soft reboot for a quicker and more convenient (and, some argue, less stressful on system components) restart than powering the computer completely down then back up.[citation needed]
The Linux kernel has optional support for the kexec system call, which shuts down the currently running kernel and executes another one. The entire process is done independent of the system firmware. Note that the kernel being executed does not have to be a Linux kernel.

basically, the key here isn't a software restart or the reset button - the correct term is hard reboot and soft reboot. Booting - Wikipedia, the free encyclopedia

To BadDudes: I must say, thank you for bringing up the topic, I would never have looked hard enough if you didn't raise it.

[BadDudes]

@poldopunk ... thanks bro

[Der FüHRER]

as far as i know, between doing a soft reboot(via OS) and shutting it down(via OS) and turning it on manually..there's no difference... perhaps mabugaw gamay ang hardware components kung taod-taoran pa nimo og switch on og balik..hehe

[AMD_infinium05]

as far as i know, between doing a soft reboot(via OS) and shutting it down(via OS) and turning it on manually..there's no difference... perhaps mabugaw gamay ang hardware components kung taod-taoran pa nimo og switch on og balik..hehe

i agree, sounds no difference.