[Q] How to learn more about Android - Android Q&A, Help & Troubleshooting

As the topic says, I would like to learn more about ROM developing, unbricking and troubleshooting Android.
I've found some tutorials about these, but I still have some question.
1. How ROMs are made for specified devices, why would the same ROM for different devices vary?
2. Can I port certain ROM like CyanogenMod for my devices based on a clean AOSP for my devices?
3. Is it necessary to use Linux for the development?
4. How people develop ROM for the devices? ( following q1, how they find the differences?)
5. What programming language I should know? (I do programmed with C#)
6. Is there any reading for such subjects? If there is, what are the suggestions.
Well these should be all of my questions =D
edit: I am interested in communication between C#(Windows) and android, anyone any ideas?

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Every device have difernet specifications hence the roms change according to it so we have to tailor it according to tge device
And about the use of linux the android is based on linux platform so for more developments we shld hav linux but for simple works you can use windows with help of cygwin
Sent from my GT-S6102 using Tapatalk 2
---------- Post added at 05:29 PM ---------- Previous post was at 05:26 PM ----------
The rom of a phone is called firmware because firmwate means software embedded on hardware so it depends on phone qnd each phone hav dfrnt rom
Sent from my GT-S6102 using Tapatalk 2

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sangalaxy said:
Every device have difernet specifications hence the roms change according to it so we have to tailor it according to tge device
And about the use of linux the android is based on linux platform so for more developments we shld hav linux but for simple works you can use windows with help of cygwin
Sent from my GT-S6102 using Tapatalk 2
---------- Post added at 05:29 PM ---------- Previous post was at 05:26 PM ----------
The rom of a phone is called firmware because firmwate means software embedded on hardware so it depends on phone qnd each phone hav dfrnt rom
Sent from my GT-S6102 using Tapatalk 2
Click to expand...
Click to collapse
Oops, almost forgotten that android is actually linux
Well, what do you mean about change? Such as the driver for different processor?

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Change means yes ofcourse the drivers processor camera screen size quality graphics etc etc every phone is dfrnce in someway so the rom is also dfrnt
Sent from my GT-S6102 using Tapatalk 2

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sangalaxy said:
Change means yes ofcourse the drivers processor camera screen size quality graphics etc etc every phone is dfrnce in someway so the rom is also dfrnt
Sent from my GT-S6102 using Tapatalk 2
Click to expand...
Click to collapse
hmm, i think i know more about that.
well, still looking forward for some readings~

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milkgreen said:
Oops, almost forgotten that android is actually linux
Well, what do you mean about change? Such as the driver for different processor?
Click to expand...
Click to collapse
Android isn't actually Linux as such, it's based on Linux.
Sent from my Evita.

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timmaaa said:
Android isn't actually Linux as such, it's based on Linux.
Sent from my Evita.
Click to expand...
Click to collapse
close enough

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You started this thread asking to learn more about Android so I assumed you were looking for accurate information, I'm sorry if I was wrong about that. Close enough, maybe. A mandarin is close enough to an orange, but does being close enough make it an orange? No.
Sent from my Evita.

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timmaaa said:
You started this thread asking to learn more about Android so I assumed you were looking for accurate information, I'm sorry if I was wrong about that. Close enough, maybe. A mandarin is close enough to an orange, but does being close enough make it an orange? No.
Sent from my Evita.
Click to expand...
Click to collapse
so android is not linux? hmm, I will remember that :good:
another question, I tried running 'dd' command from adb shell but it failed (if on the devices with terminal, then yes), what's the problem?

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Lets say Android is Linux's half-brother. About your other question I'm not sure, but for the people that can answer it you'll need to provide more information. One thing I do know is you want to be very careful with dd commands, unless you know what you're doing you could have problems. Problems like a phone that'll never boot again, caution is suggested.
Sent from my Evita.

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timmaaa said:
Lets say Android is Linux's half-brother. About your other question I'm not sure, but for the people that can answer it you'll need to provide more information. One thing I do know is you want to be very careful with dd commands, unless you know what you're doing you could have problems. Problems like a phone that'll never boot again, caution is suggested.
Sent from my Evita.
Click to expand...
Click to collapse
Is it just like UNIX and LINUX? Alright then, I'll take time to investigate into it.