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Monday, 24 October 2011
APA ITU ANDROID?BASIS DARI LINUX?
Android adalah sistem operasi untuk peranti bergerak seperti telefon selular, komputer tablet dan notebook. Android dibangunkan olehGoogle berdasarkan sistem perisian Linux dan perisian GNU.
Android asalnya dibangunkan oleh Android Inc. (firma yang kemudiannya
telah dibeli oleh Google). Kemudian untuk mengembangkan Android,
dibentuklah Open Handset Alliance, konsortium daripada 34 syarikat
telekomunikasi, termasuk Google, HTC, Intel, Motorola, Qualcomm, T-Mobile, dan Nvidia.
Android
mempunyai komuniti yang besar dalam membangunkan serta menulis aplikasi
untuk pengembangan fungsi peralatan. Dianggarkan hampir 70,000 aplikasi
untuk Android boleh didapati, menjadikanya sasaran pengembangan
peralatan kedua paling popular untuk peralatan mobile.
Android's kernel is a fork of the Linux kernel but
has further architecture changes by Google outside the typical Linux
kernel development cycle.For example Android does not have a native X Window System nor does it support the full set of standard GNU libraries, and this makes it difficult to port existing Linux applications or libraries to Android.
Certain
features Google contributed back to the kernel, notably a power
management feature called wakelocks, were rejected by mainline kernel
developers, partly because kernel maintainers felt that Google did not
show any intent to maintain their own code. Even though Google announced
in April 2010 that they would hire two employees to work with the Linux
kernel community, Greg Kroah-Hartman,
the current Linux kernel maintainer for the -stable branch, said in
December 2010 that he was concerned that Google was no longer trying to
get their code changes included in mainstream Linux.Some Google Android
developers hinted that "the Android team was getting fed up with the
process", because they were a small team and had more urgent work to do
on Android.
However,
in September 2010 Linux kernel developer Rafael J. Wysocki added a
patch that improved the mainline Linux wakeup events framework. He said
that Android device drivers that use wakelocks can now be easily merged
into mainline Linux, but that Android's opportunistic suspend features
should not be included in the mainline kernel.In 2011 Linus Torvalds said that "eventually Android and Linux would come back to a common kernel, but it will probably not be for four to five years.
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