<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1660866753786/BXgUZreTM.png" alt="image.png" /></p>
<h3 id="heading-kernel">Kernel</h3>
<p><code>The kernel is the heart of the operating system. Controls the hardware.
Turns parts of the computer system on and off at a programs command.</code></p>
<h3 id="heading-shell">Shell</h3>
<p><code>A program that connects and interprets the commands typed by user. It interprets user requests, calls programs from memory, and executes them one at a time or in a series called ‘pipe’. Bourne shell &amp; C shell comes with UNIX system.</code></p>
<h3 id="heading-tools-and-applications">Tools and Applications</h3>
<p><code>The applications and utility layer in Unix includes the word processors, graphics programs, database management programs, commands etc. The application programs provide an application to the end users.</code></p>



![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1660866753786/BXgUZreTM.png align="left")

### Kernel
``` The kernel is the heart of the operating system. Controls the hardware.
Turns parts of the computer system on and off at a programs command.```

### Shell
``` A program that connects and interprets the commands typed by user. It interprets user requests, calls programs from memory, and executes them one at a time or in a series called ‘pipe’. Bourne shell & C shell comes with UNIX system.```

### Tools and Applications
``` The applications and utility layer in Unix includes the word processors, graphics programs, database management programs, commands etc. The application programs provide an application to the end users.```


Be A DevOps

Be A DevOps

The structure of Unix System

Kernel

Shell

Tools and Applications