Introduction

Successive events during the past fifty years is staggering in the field of computers and applications, where it appeared Computer in the beginning and then supported its possibilities. Once solved the eighties of the twentieth century until the PC occupies pride of place in the military industry, civil and saw the following years developments began with increased hardware capabilities and connecting them with each other to be a network where you can devices to share files and reports, software and applications, data, and information and helped the means of communication to increase the area small network between a range of devices to become the communication between multiple networks a reality in a wide network called the Internet (Internet). Computer is the greatest gift donated technology to the rights in the twentieth century, and now is his mastery of the use of an important key to enter the new century.Was the first to provide the computer for more than fifty years later, in 1946, where he was composed of more than 18,000 electronic valve, these valves are somewhat complex type of electronic gadgets that have the form of the electric light bulb known Odhu average size. It is similar to valves which have been used to turn on the radio for a long period of time and until the invention of the transistor, as well as to turn on the TV at the beginning of his reign. The computer at the time occupy the entire building, and weighing more than thirty tons. This means that weighed more than thirty car weight. That building was in need of a giant refrigeration equipment to remove heat from the electronic valves. However, its effectiveness has not been the most effective of a small pocket calculator which used schoolchildren now

!!