What is the use of ARM EABI v7a System image in android?

Question

What for do we need ARM EABI v7a System image in Android development? What is the purpose of that particular image?

Answer 1

That's the emulator image supporting ARMv7-A profile hardware, which is true for all new Android phones.

Since ARMv7-a is backward compatible with ARMv5, it is the only supported image with later system images.