Compiling latest kernel in Ubuntu from Source
     First of all let's see what kernel is and what it is for. Kernel is basically a computer program which takes instructions or I/O (Input/Output) Signal from software and processes them into data processing instruction for CPU and other electronic devices.   Kernel code contains all set of instructions and is programmed mostly in C language. It contains all the instruction from copy & paste to reading system architecture. The Kernel code must contain all the C code and the Object files in order to be compiled successfully.  You can download kernel code from here .   '>' this states that you have to type the adjust command in terminal.  Ex: >whoami  This command will display your username.  >uname -r  This command will display current version of your kernel, to see all system details along with arch. use -a option instead of -r.   Q.Why you should update your kernel?   Ans. Kernel update is not mandatory but recommended as what all you get from the update is ...