ple arithmetic machine. Although it was the Chinese who first came up with a working mathematical machine, Germany produced the first computer that can encrypt and decrypt information. This machine known by the name "Enigma" aided the German army to communicate information to the war fronts without worrying about it's interception by enemy intelligence units. As computer speed improved they added to the fields of scientific analysis and medicine. Not long ago, designing a car, airplane or medical equipment required a lot of resources. It also consumed a lot of time in building a working model and testing it. Today, with the advancement in computer technology and its speed, an entire car, airplane, any mechanical or electrical device can be built and tested.
             This can be done without building a real life model. Medical equipment controlled by computer can diagnose diseases and recommend treatments5. Such equipments are currently being used in major hospitals throughout developed countries5.
             There is hardly anybody today who can say their lives haven't been influenced by computers. Computers are taking over society as we know it. Everywhere you look, computers have greatly improved our way of life. It can be as simple as going to photo print shop. Today, the old way of taking the film to the print shop is quickly becoming obsolete. The new digital medial such as digital camera equipped with memory card can do a better job than the old high speed films that are messy. So, an i
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