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Mobile technology is the technology used for cellular communication. Mobile code division multiple access (CDMA) technology has evolved rapidly over the past few years. Since the start of this millennium, a standard mobile device has gone from being no more than a simple two-way pager to being a mobile phone, GPS navigation device, an embedded web browser and instant messaging client, and a handheld game console. Many experts argue that the future of computer technology rests in mobile computing with wireless networking. Mobile computing by way of tablet computers are becoming more popular. Tablets are available on the 3G and 4G networks.

Devices  have been used to aid computation for thousands of years, probably initially in the form of a  tally stick . [8]  The  Antikythera mechanism , dating from about the beginning of the first century BC, is generally considered to be the earliest known mechanical  analog computer , and the earliest known geared mechanism. [9] :279 Comparable geared devices did not emerge in Europe until the 16th century, [10] :94  and it was not until 1645 that the first  mechanical calculator  capable of performing the four basic arithmetical operations was developed. [11] :3                                                                                                                                                                                                       Electronic computers , using either  relays  or  valves , began to appear in the early 1940s. The electromechanical  Zuse Z3 , completed in 1941, was the world's first  programmable  computer, and by modern standar