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Sunday, August 29, 2010

WHAT IS A MOBILE




Mobile technology is exactly what the name implies - technology that is portable. Examples of mobile IT devices include:

  • laptop and netbook computers
  • palmtop computers or personal digital assistants
  • mobile phones and 'smart phones'
  • global positioning system (GPS) devices
  • wireless debit/credit card payment terminals

Mobile devices can be enabled to use a variety of communications technologies such as:

  • wireless fidelity (WiFi) - a type of wireless local area network technology
  • Bluetooth - connects mobile devices wirelessly
  • 'third generation' (3G), global system for mobile communications (GSM) and general packet radio service (GPRS) data services - data networking services for mobile phones
  • dial-up services - data networking services using modems and telephone lines
  • virtual private networks - secure access to a private network

It is therefore possible to network the mobile device to a home office or the internet while travelling.

Benefits

Mobile computing can improve the service you offer your customers. For example, when meeting with customers you could access your customer relationship management system - over the internet - allowing you to update customer details whilst away from the office. Alternatively, you can enable customers to pay for services or goods without having to go to the till. For example, by using a wireless payment terminal diners can pay for their meal without leaving their table.

More powerful solutions can link you directly into the office network while working off site, for instance to access your database or accounting systems. For example, you could:

  • set up a new customer's account
  • check prices and stock availability
  • place an order online

This leads to great flexibility in working - for example, enabling home working, or working while travelling. Increasingly, networking 'hot spots' are being provided in public areas that allow connection back to the office network or the internet. The growth of cloud computing has also impacted positively on the use of mobile devices, supporting more flexible working practices by providing services over the internet. For more information see our guide on cloud computing.

Drawbacks

There are costs involved in setting up the equipment and training required to make use of mobile devices. Mobile IT devices can expose valuable data to unauthorised people if the proper precautions are not taken to ensure that the devices, and the data they can access, are kept safe. See our guide on securing your wireless systems.

Sunday, June 21, 2009

WHAT IS THE USE OF MOBILE PHONES


A Mobile is used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPRS. Most current mobile phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator (the exception is satellite phones, which are mobile but not cellular)..



A Mobile is an a object standard that allows with mobile devices whose IP addresses are associated with one network to stay connected when moving to a network with a different IP address. When a user leaves the network with which his device is associated (home network) and enters the domain of a foreign network, the foreign network uses the Mobile IP protocol to inform the home network of a care-of address to which all packets for the user's device should be sent. Mobile IP is most often found in wireless WAN environments where users need to carry their mobile devices across multiple LANs with different IP addresses. A common analogy to explain Mobile IP is when someone moves his residence from one location to another. Person moves from Boston to New York. Person drops off new mailing address to New York post office. New York post office notifies Boston post office of new mailing address. When Boston post office receives mail for person it knows to forward mail to person's New York address.