Components of a Processor | How does it work?

Working of a Mobile Processor:

The CPU, GPU, audio, and video engine, connectivity features (GPS, Wi-Fi, FM) and 3G/4G modem are major components of a mobile processor. 

1) CPU (Central Processing Unit)- This is the brain of your smartphone which receives commands, makes instant calculations and sends signals throughout your device. There are many ways to check performance of a CPU by checking its Gigahertz (Ghz) or the number of CPU cores. In the past, the CPU handled the visuals that were sent to the screen in addition to its other duties. But the demand of high quality graphics led to the development of another component for graphics called GPU.

2) GPU (Graphics Processing Unit)- The GPU assists the CPU by handling the visuals, particularly in games and other graphically rich applications. It handles a lot of graphics related works simultaneously supporting the CPU. It also frees up the CPU, allowing it o conserve its resources.

In smartphones, an integrated GPU is designed so that the video playback becomes smooth, photo edits appear more quickly and touch latency becomes lag-free. But in computers, an external GPU may be added to increase the visual performance of your PC during games. 

3) Camera ISP (Image Signal Processor)- An integrated image signal processor provides many of your smartphone's camera functions. It is designed with a good image processing package and give an improved image and video experience. An integrated ISP can also be invaluable when it comes to things like instant image capture, high resolution support, image stabilization and other enhancements.

4) Audio & Video- A good processor will also have dedicated processing units that handles audio and video. Well for these purpose, there is another component called the Digital Signal Processor (DSP) that handles music playback and other music playing scenarios. The same applies to video capture and playback for which there is a dedicated video engine designed to handle these tasks.

The concept of distributing  work among area like graphics, audio, video, gaming etc is what makes processing so fast and efficient in a processor.

Well, if don't know what actually a processor is, then you can also my another post in which I've explained about it. 
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