Mobile computing -- Introduction

Mobile computing -- Introduction

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  Mobile Computing
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  Definition A technologythat allows transmission of data, via a computer, without having to be connected to a fixed physical link. ( Koudounas and Iqbal)
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  Introduction Emerging technologywith intercross of many subjects. Human–computer interaction to be transported during normal usage. Hotspot in computing technology sector One of the four far-reaching implications technologies. New technology grwoing up with mobile communication, Internet, database, distributed computing...
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  Purpose Provide anyclients at any time in any location with useful, accurate and timely information. Altering people's life style and working method drastically.
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  Aspects Mobile communicationMobile hardware Mobile software
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  Mobile communication Communicationbetween moving body, or moving body and fixed objects. Features: Mobility. Complicated to propagate radio wave. Severe noise and interference. Complex system and network configuration.
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  Mobile hardware Mobile software
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  Mobile software Runon handheld computers, PDAs, EDAs, smartphones and cellphones. Popularity of these platforms has risen considerably since the first handheld computers invented in 1980s.
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  Mobile computing Portabletechnologies. Internet access on the go. Laptops, PDAs, standard cell phones. Indispensable way of life.
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  WiFi Common, cheapRadio waves used to broadcast Internet signal from wireless router. Anyone can jump on if not encrypted. Commonly used in public places to create hotspot. Hotspot must be located, stay put within broadcasting range.
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  Cellular broadband Cellularmodem or AirCard used to connect to cell towers. AirCard fits into PC Card or ExpressCard slot, delivering Internet access on the go. Needn’t remain stationary as signal remain strong. Cell phones and PDAs also use it. Access considered premium service which increases cost.
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  Others Cloud computing.Use website services from mobile computers. Access to a company’s VPN by tunneling through Internet.
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  Importance Increasing businessvalue. Staying connected. Email to Facebook, Skype to socializing sites, cloud computing to VPNs, No longer do without mobile computing anymore.