A mobile device (also known as cellphone device, handheld device, handheld computer, "Palmtop" or simply handheld) is a pocket-sized computing device, typically having a display screen with touch input or a miniature keyboard. In the case of the personal digital assistant (PDA) the input and output are combined into a touch-screen interface. Smartphones and PDAs are popular amongst those who require the assistance and convenience of a conventional computer, in environments where carrying one would not be practical. Enterprise digital assistants can further extend the available functionality for the business user by offering integrated data capture devices like Bar Code, RFID and Smart Card readers.
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Mobile Display Digital Interface (MDDI) is a high-speed digital interface developed by Qualcomm to interconnect the upper and lower clamshell in a flip phone. The MDDI solution supports variable data rates of up to 3.2 Gbit/s, and decreases the number of signals that connect the digital baseband controller with the LCD display and camera.
The integration of MDDI is said to enable the adoption of advanced features, such as high-definition (QVGA) LCDs and high-resolution megapixel cameras for wireless devices, and supports capabilities such as driving an external display or a video projector from a handset.
A Video Electronics Standards Association (VESA) approved standard, the MDDI solution is currently available and integrated into select Qualcomm chipsets.
A more traditional study method was used by the Société de l'assurance automobile du Québec (SAAQ) for their 2003 study. Questionnaires were sent to 175,000 drivers and analysis was done on the 36,078 who responded. The questionnaire asked about driving habits, risk exposure, collisions over the past 24 months, socio-demographic information, and cell phone use. Questionnaires were supported with data from cell phone companies and police crash records. The study found that the overall relative risk (RR) of having an accident for cell phone users when compared to non-cell phone users averaged 1.38 across all groups. When adjusted for kilometers driven per year and other crash risk exposures, RR was 1.11 for men and 1.21 for women. They also found that increased cell phone use correlated with an increase in RR. When the same data were reanalyzed using a Bayesian approach, the calculated RR of 0.78 for those making less than 1 call/day and 2.27 for those with more than 7 calls/day was similar to cohort analysis. When the data were reanalyzed using case-crossover analysis, RR was calculated at a much higher 5.13. The authors expressed concern that misclassification of phone calls due to reporting errors of the exact time of the collisions was a major source of bias with all case-crossover analysis of this issue.
Cell Phones for Soldiers was founded in 2004, when Brittany Bergquist, then 13, and her brother, Robbie, 12, heard a news story about an Army Reserve sergeant stationed in Iraq who had racked up a $7,624 cell phone bill calling home to his family in the states.
The teenagers pooled their money to raise their first $21. The pair went on to collect change from their friends and hold a car wash that raised almost $1,000. When they went to a local bank to start an account for the collection drive, the bank chipped in another $500. [1]
The local media reported on what the Bergquist family was doing, and the coverage led to a massive surge in contributions. That, in turn, put Brittany and Robbie in the national news and won them support from across the country. That inspired the Bergquist family to launch “Cell Phones for Soldiers” as formal 501(c)3 charitable organization – with the goal of helping every service member call home for free.
The organization took a novel approach to fundraising, collecting old cell phones most of us keep in our junk drawers because we don’t know what else to do with them. The Bergquists have teamed up with ReCellular,_Inc. to process their phones and are paid for every phone they collect, with the average phone worth enough to provide a 60 minute calling card for international use. ReCellular is the worlds largest mobile device recycler, processing over 2 million phones for Cell Phones for Soldiers in 2008 alone.
A ring tone maker allows a user to take a song from their personal music collection, select whatever section they like and send the file to their mobile phone. Files can be sent to the mobile phone by direct connection (e.g., USB cable), Bluetooth, text messaging, or e-mail.
The earliest ringtone maker was Harmonium, developed by Vesa-Matti Paananen, a Finnish computer programmer, and released in 1997 for use with Nokia smart messaging
Some providers allow users to create their own music tones, either with a "melody composer" or a sample/loop arranger (such as the MusicDJ in many Sony Ericsson phones). These often use encoding formats only available to one particular phone model or brand. Other formats, such as MIDI or MP3, are often supported; they must be downloaded to the phone before they can be used as a normal ring tone.
In 2005 "SmashTheTones" (now "Mobile17"), became the first third-party solution to allow ring tone creation online without requiring downloadable software or a digital audio editor. Later, Apple’s iPhone allowed users to create a ringtone from any song purchased for the phone’s iTunes library but with some difficulties, including a 40-second limit, and the fact the file has to be an AAC format and whose name ended with the extension .m4r.
There are a variety of websites that let users make ring tones from digital music or other sound files; they upload directly to their mobile phone with no limit on the number of songs uploaded. They feature music editors that lets the user pick the part of the song they wish to set as a ring tone. Such services automatically detect the phone settings to ensure the best file type and format.
Mobile weapons (機動兵器 kidō heiki?) are fictional weapon systems from the Gundam anime metaseries. The term originally includes all self-propelled military used vehicles including traditional tanks and aircraft. However, the English term was used to generalize all weapons including mobile suits, mobile armour and any other machines based on the same mecha technologies. Note that in Universal Century, most weapons are designed to combat under the influence of the Minovsky Particle and thus differ from conventional weapons.
A mobile game is a video game played on a mobile phone, smartphone, PDA, handheld computer or portable media player. This does not include games played on handheld video game systems such as PlayStation Portable or Nintendo DS.
The first game that was pre-installed onto a mobile phone was Snake on selected Nokia models in 1997. Snake and its variants have since become the most-played videogame on the planet, with over a billion people having played the game.
Mobile games are played using the technologies present on the device itself. For networked games, there are various technologies in common use. Examples include text message (SMS), multimedia message (MMS) or GPRS location identification.
However, there are non networked applications, that simply use the device platform to run the game software. The games may be installed over the air, they may be side loaded onto the handset with a cable, or they may be embedded on the handheld devices by the OEM or by the mobile operator.
Mobile games are usually downloaded via the mobile operator's radio network, but in some cases are also loaded into the mobile handsets when purchased, or via infrared connection, Bluetooth or memory card.
