IntroductionKubuntu 11.04 Kernel: Linux Kernel version 3.0 GUI: KDE Plasma DesktopSystem Requirment : Required Recommended Processor 1 GHz Better than 1 GHz Memory 384 MB 1 GB Disk Space 4 GB 10 GB
History1991: Birth of Linux.1994: Linux 1.0 Only Single-Processor Intel 386 machines.1996: Linux 2.0 Support for new architectures.08-April-2005: Release of Kubuntu 5.04.10-October-2010: Release of Kubuntu 10.10.28-April-2011: Release of Kubuntu 11.04.
Design principle Speed Efficiency SecurityKernel Module Features Easy to add new functionality. Explicitly loading and unloading drivers Minimal Kernel Module support kernel Module Management. Conflict-resolution mechanism. Driver Registration.
Process ManagementClasses of processes Interactive Command shells, text editors, and graphical applications. Batch Programming language compilers, database search engines, and scientific computations Real-time video and sound applications, robot controllers
Fork()/Exec() Process Model fork():For creation of new process. exec():For execution of newly created process.Implementation of fork() and exec() system call