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Mobile technology learning

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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.
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Dragunov (SVD-63) sniper rifle

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The  Dragunov sniper rifle  (formal  Russian :  Снайперская Винтовка системы Драгунова образца 1963 года Snayperskaya Vintovka sistem'y Dragunova obraz'tsa 1963 goda (SVD-63), officially "Sniper Rifle, System of Dragunov, Model of the Year 1963") is a  semi-automatic   sniper / designated marksman rifle  chambered in  7.62×54mmR  and developed in the Soviet Union . The Dragunov was designed as a  squad  support weapon since, according to  Soviet and Soviet-derived military doctrines , the long-range engagement ability was lost to ordinary troops when submachine guns  and  assault rifles  (which are optimized for close-range and medium-range, rapid-fire combat) were adopted. For that reason, it was originally named Самозарядная Винтовка системы Драгунова образца 1963 года "Self-Loading Rifle, System of Dragunov, Model of the Year 1963". It was selected as the winner of a contest that included three competing designs: by  Sergei Simonov , Aleksandr Konst
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Compact stun guns

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The compact handheld stun guns are about the size of a TV remote or calculator, and they must touch the subject when used. The original XR-5000 design in 1983 had the electrodes spread farther apart to make the noisy electric arc between the electrodes as a more visible warning. Some such devices are available disguised as other objects, such as umbrellas,  mobile phones  or pens. Electric shock prods Electric cattle prod from the 1950s The larger  baton-style  prods are similar in basic design to an electric  cattle prod . It has a metal end split into two parts electrically insulated from each other, or two thin projecting metal  electrodes  about 2.5 centimetres (1 in) apart, at an end of a shaft containing the batteries and mechanism. At the other end of the shaft are a handle and a switch. Both electrodes must touch the subject. In some types the sides of the baton can be electrified to stop the subject from grasping the baton above the electrodes. Some models are
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