What is OS Kernel ?

Operating System (OS) Kernel is the most important component of any operating systems, which operates between application program layer and hardware layer. Its function is to manage the communication between applications and hardware (ex. cpu, memory, i/o devices etc) for maximum optimization of available resources.

What is semiconductor ?

Materials which are neither a good electricity conductor nor a good electricity insulator. Conductivity of semiconductor increases with increasing temperature, opposite of conductor's property. Doped semiconductor allow flow of current only in one direction and so it is used in almost every electrical devices. Diodes, Transistors, Chips etc all are made from semiconductor.

what is android ?

Android is an Operating system based on Linux kernel, mainly designed for smartphones. Android OS development is initially started by Android, Inc. in 2003 and later it is purchased by Google in 2005. Google started Android as an open source software. So Android OS gain popularity on market very quickly. Android has large community of developers writing application , most of them uses Java programming language for coding. Because of open source and customizable property, now  Android is also used in Laptop, Cameras, Smart TVs etc. 

GPU (Graphics Processing Unit)

Geforce2 mx400 GPU

GPU is the processor used in a computer graphics hardware to process large and complex 3d graphics or applications. It is a single chip with integrated transform, lighting, triangle setup/clipping and rendering engines. Creating lighting effects and transforming 3d models are computationally intensive tasks which effects the performance of computer system. These all tasks are offloaded  from CPU onto the GPU for better performance of computer and so all scenes increase in detail. Transform engine creates a motion effects in 3d models by converting its frame of reference point into another frame continuously millions of times each second. Lighting engine generates lighting effects on 3d models.