Question related android ?

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i just want to know that why android operating system does not work directly in mobile devices

why there is need of development in it to use in all diffrent phones?

why it cant work directly like windows in pc does

and other question all others like bada os, symbien and apple os they all need they also need development or we can use them directly

if sumone didnt understand my question i will explain more

for further explanation>

windows we can install directly in any pc of any company or assembled

but android need development and designed for a seprate product of a specific brand

why?

no1 is intrestd in answring these questions ? :P

You are just kidding here right?


/Pun intended.

For example

• [1] ....
  [n] Windows has the complete set of drivers
  [n+1] The manufacturer delivers the driver

Fundamentally, you're misunderstanding the situation. Windows does not run on any computer you can throw together. It runs on any computer that you can throw together that matches the evolving, de facto standard that started as the IBM PC.

It won't run on a SPARC Station or a 68k Mac or an IBM 360 or a Wii or a PS3 or, well, a HTC Vision.

Similarly, Android will run on any PC, er phone, er tablet, er, well computer that is basically the same as an existing Android device. The vast majority of the custom development that is, strictly-speaking, necessary for a new device amounts to device drivers. Now, most manufacturers do a lot on top of that to distinguish their product. That's where Sense and MotoBlur and such-like come into play.

A further complication is that storage space and memory are at a heavy premium on these devices. So, it is infeasible to include the incredible variety of drivers and other hardware support that makes a typical Windows or Linux install need several GBs.

Back in the day, when dinosaurs roamed the earth and there were only a handful of PC makers in the world, similar customization was needed. My first PC came with a manufacturer-custom version of DOS 2.1 and Windows 1.1. Is wasn't until at least DOS 3.x (maybe 4.x, that was a long time ago) that a vanilla MS copy had a chance of working. Even then, most peripherals *needed* a custom driver to be used at all. My first mouse is an example. Only way to use it was the Genius Mouse drivers that came with it.

thanks for ur answers guys