Explain Term Mobile Computing.
  • The term describes one’s ability to use technology while moving. It requires a wireless network to support outer mobility and handoff from one network to the next network.
    • In mobile computing, a set of distributed computing systems or service provider, servers participate, connect and synchronize through mobile communication protocol.
    • In mobile computing both physical and logical computing entities move.
    • The physical entities like computers change the locations.
    • The logical entities like instances of a running user application move from one location to another.
    • It is the mobility of physical objects (wireless devices) and virtual objects (data in bits/bytes)
    • User of mobile computing environment can access data, information and other logical objects from any device in network while moving.
    • Allows user to perform task from anywhere using computing device in public, corporate and personal information spaces. (*optional point)

- Mobile communication is the process of communication on a mobile device. It is also transfer of data to and from handheld devices. (*optional point)

1 Answer

Mobile Computing :

Mobile Computing is a technology that allows transmission of data, voice and video via a computer or any other wireless enabled device without having to be connected to a fixed physical link. Mobile Computing is a generic term that refers to a variety of devices that allow people to access data and information from wherever they are.

The Benefits of Mobile Computing :

Connectivity : You can stay connected to all sources at all times. Social Engagement : You can interact with a variety of users via the Internet. Personalization : You can tailor your mobile computing to your individual needs.

Limitations of Mobile Computing :

  1. Range and Bandwidth : Mobile Internet access is generally slower than direct cable connections, using technologies such as GPRS and EDGE, and more recently HSDPA, HSUPA, 3G and 4G networks and also the upcoming 5G network. These networks are usually available within range of commercial cell phone towers. High speed network LANs are inexpensive but have very limited range.

  2. Security Standards : When working mobile, one is dependent on public networks, requiring careful use of VPN. Security is a major concern while concerning the mobile computing standards on the fleet. One can easily attack the VPN through a huge number of networks interconnected through the line.

  3. Power Consumption : When a power outlet or portable generator is not available, mobile computers must rely entirely on battery power. Combined with the compact size of many mobile devices, this often means unusually expensive batteries must be used to obtain the necessary battery life.

  4. Transmission Interferences : Weather, terrain, and the range from the nearest signal point can all interfere with signal reception. Reception in tunnels, some buildings, and rural areas is often poor.

  5. Potential Health Hazards : People who use mobile devices while driving are often distracted from driving and are thus assumed more likely to be involved in traffic accidents. (While this may seem obvious, there is considerable discussion about whether banning mobile device use while driving reduces accidents or not.) Cell phones may interfere with sensitive medical devices. Questions concerning mobile phone radiation and health have been raised.

  6. Human interfere with device : Screens and keyboards tend to be small, which may make them hard to use. Alternate input methods such as speech or handwriting recognition require training.

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