Introduction to AVR

AVR Tutorial

AVR microcontrollers from ATMEL are very good choice for designing mid-range embedded systems.They are 8Bit RISC controllers. They come in many verities and most of them gives 16MIPS (Mega Instructions Per Seconds) throughput at 16MHz . 

Unlike most of the popular PIC microcontrollers, AVRs have powerful instruction set, most executing in 1 cycle. Recently ATMEL has introduces some new controllers with speed upto 20MHz and USB support.

Linux tutorial as PDF

An operating system is the software on a computer that manages the way different programs use its hardware, and regulates the ways that a user controls the computer. It is considered the backbone of a computer, managing both software and hardware resources. Operating systems are responsible for everything from the control and allocation of memory to recognizing input from external devices and transmitting output to computer displays. They also manage files on computer hard drives and control peripherals, like printers and scanners. Some popular modern operating systems for