All About Mobile

What is Mobile

Mobile Search is an evolving branch of information retrieval services that is centered around the convergence of mobile platforms and mobile handsets or other mobile devices. The services allow users to find mobile content interactively on mobile websites, and mobile content shows a media shift toward mobile multimedia. Simply put, mobile search is not just a spatial shift of PC web search to mobile equipment, but is witnessing more of treelike branching into specialized segments of mobile broadband and mobile content, both of which show a fast-paced evolution.

How many Types of Mobile phones is the World

Are you considering buying a mobile phone? Today the demand of mobile phone is on a rise so much so that people prefer mobile phones to landlines. There are different types of mobile phones available in the market. Different phones operate on different systems and each has its own positive and negative side.
Analog Phones: Analog is the original type of cell phone. Analog phones are less expensive and are offered as a free incentive to sign up for service. They are popular worldwide and can be used in 95 percent countries. However with the availability of digital phones, analog phones are loosing its importance. One of the major drawbacks of analog phones is that the sound quality is not sharpest and the minute rate tends to be much higher than the alternatives.
Digital Phones
Digital phones are comparatively better than analog phones in terms of quality service, customer security and ability to support next generation services. Digital offers a better quality of sound as compared to analog phones. They provide better network of signals and have much cheaper caller rates. Unlike analog, digital phones work by sampling pieces of wave and sending it in the form of data. One of the biggest disadvantages of digital phones is that they can give you problems if you’re planning to use it in some other country. As far as analog phones are concerned it will be a safe and better commodity for traveling cross-country.
PCS Phones
PCS is nothing but personal communication service. PCS phones are by and large very similar to digital phones. Personal Communication Service (PCS) operates at a speed of 1850 MHz. They are new entrants in the market and have equipped the features of digital technology instead of analog. Experts have predicted minimum of 23 million users of PCS by the end of the millennium.

Mobile Station

The mobile station (MS) comprises all user equipment and software needed for communication with a Wireless telephone network.

MS refers to the Mobile Phone.i.e. the handset held by the users in the mobile network. This is the terminology of 2G systems like GSM. In the 3G systems, MS(mobile station) is now referred as User Equipment UE.

A mobile station (MS) is a portable data and/or voice communications statio which acts as a normal telephone whilst being able to move over a wide area. A mobile station is typically made up of an antenna, amplifier, receiver, transmitter, and similar hardware and software for sending and receiving signals and converting between RF waves and audio signals. Examples of mobile stations are cellular devices such as global system for mobile communications (GSM) devices, frequency division multiple access (FDMA) devices, time division multiple access (TDMA) devices, code division multiple access (CDMA) devices, wideband code division multiple access (WCDMA) devices, and analog mobile phone system (AMPS) devices. Mobile stations have found many uses in today's world. When paired with a single base station located at a user's own premises, they are called "cordless telephones." When they interact with various, geographically distributed cellular base stations, they are called "cellular telephones" or simply "cell phones." In a mobile telephone communication system, one or several base stations transmit information, such as voice information, or data, or both to a mobile station. Each base station supports one or several sectors. In mobile wireless data communications systems at least one of the data communications stations is a mobile station. Typically, mobile wireless data communications systems are often comprised of one or more base stations and one or more mobile stations. A mobile station may provide both a second-generation mobile communication service and a third-generation mobile communication service. Multimode terminals may provide a multimedia service as well as a voice service and a data service.

Virus in Mobile

A mobile phone virus is a computer virus specifically adapted for the cellular environment and designed to spread from one vulnerable phone to another. Although mobile phone virus hoaxes have been around for years, the so-called Cabir virus is the first verified example. The virus was created by a group from the Czech Republic and Slovakia called 29a, who sent it to a number of security software companies, including Symantec in the United States and Kapersky Lab in Russia. Cabir is considered a "proof of concept" virus, because it proves that a virus can be written for mobile phones, something that was once doubted. Cabir was developed for mobile phones running the Symbian and Series 60 software, and using Bluetooth. The virus searches within Bluetooth's range (about 30 meters) for mobile phones running in discoverable mode and sends itself, disguised as a security file, to any vulnerable devices. The virus only becomes active if the recipient accepts the file and then installs it. Once installed, the virus displays the word "Caribe" on the device's display. Each time an infected phone is turned on, the virus launches itself and scans the area for other devices to send itself to. The scanning process is likely to drain the phone's batteries. Cabir can be thought of as a hybrid virus/worm: its mode of distribution qualifies it as a network worm, but it requires user interaction like a traditional virus.

Cabir is not considered very dangerous, because it doesn't cause actual damage, and because users can prevent infection by simply refusing to accept suspicious files. However, the virus's code could be altered to create more harmful malware that might, for example, delete any information stored on phones it infects, or send out fake messages purporting to be from the phone's owner.