Mobile is a portable, handheld communications devices connected to a wireless network that allows user to make voice calls, send text messages and run application. A mobile phone, cell phone or hand phone is an electronic device used to make mobile telephone calls across a wide geographic area, served by many public cells, allowing the user to be mobile. By contrast, a cordless telephone is used only within the range of a single, private base station, for example within a home or an office. A mobile phone can make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed-line phones across the world. It does this by connecting to a cellular network provided by a mobile network operator.
There are different types of mobile phone companies some example are Nokia, Samsung, Apple, Blackbeery, Motorola, LG, Sony ericsson, etc. The importance of cell phones has increased the competition in the wireless service provider industry, making cell phones very affordable and very easy to use. Cell phones have become almost a status symbol in addition to the convenience and security that comes from owning them. it has became one of the most useful device in our life. it help us in receiving and making calls to other people. we can be able to talk to any other person who are situated very far from us.in 21st century,different cell-phone with different facilities are manufactured. the different facilities includes mp3,mp4,Bluetooth,infrared,camera,video recording etc. Cell phone reception has become reliable and of high quality due to advances in wireless technology. Cell phones are the perfect way to stay connected with others and provide the user with a sense of security. In the event of emergency, having a cell phone can allow help to reach you quickly and could possibly save lives. However, the importance of cell phones goes way beyond personal safety. Modern cell phones are capable of internet access, sending and receiving photos and files, and some cell phones are equipped with GPS technology, allowing for use in most locations around the world and allowing the cell phone to be found or the user located in the event of loss or emergency.
Mobile phones have many features beyond sending text messages and making the short or long distance voice calls, the other features including internet browsing, mp3 playback music, email, personal organizer, built in cameras, MMS, PPT, SMS, call registries, built in games, voice mails, downloading, video call, Bluetooth, infrared and they also serve as the wireless modem for a pc.
Mobile dating also known as cell dating and it allows users to chat, meet and possible involves in romance by SMS, chatting and the web. These services allow their subscribers to provide information about themselves in a short profile and which is stored in the cell phone sets as a dating ID. The users can search for the other IDS or call at a number given to them by the service. Users can find others with the criteria of age, location and gender. Most of these sites are free to use but the standard fees of SMS and dating service charges can apply per minute. Mobile dating websites focus attention on users that share the same social network and proximity. Some cellular companies offer services such as homing device. This service alerts the users when someone is within the thirty feet of the user. Some cellular companies use Bluetooth technology to connect the users in the bars, clubs and social gatherings and this service is called proximity dating. These services are more popular in European countries, United States, Australia and Canada. Mobile dating websites are gaining popularity.
One of the major factors of the usage of mobile internet is its speed. Mobile internet has faster connection. Due to this fact, many users tend to use mobile internet. The introduction of the 3G cards has a competitive high speed. All the current service providers and trying to increase their bandwidth to get more customers. The numbers of mobile phones that are cable of surfing the net have been increasing rapidly. One of the greatest problems when browsing the net on the cell phones is the small size of the screen. Because of this many developers are developing the websites that can easily be seen on the cell phones as well.
Some of the important terms used in Mobile phones are
1G - First Generation
1xEVDO - One Channel Evolution Version Data Only
1xEVDV - One Channel Evolution Version Data and Voice
2.5G - Second And A Half Generation
2G - Second Generation
3G - Third Generation
3GPP - 3rd Generation Partnership Project
3GPP2 - 3rd Generation Partnership Project 2
4G - Fourth Generation
8-PSK - 8 Level PSK
AAA - Authentication, Authorization, Accounting
ACC - Analog Control Channel
AMPS - Advanced Mobile Phone Service
AuC - Authentication Center
BC - Billing Center
BCH - Broadcast Channel
BER - Bit Error Rate
BS - Base Station
BSC - Base Station Controller
BTS - Base Transceiver Station
CBR - Constant Bit Rate
CDG - CDMA Development Group
CDMA - Code Division Multiple Access
CDMA2000 - Code Division Multiple Access 2000
CDR - Call Detail Record
CN - Core Network
D/R - Distance to Reuse Ratio
DAMPS - Digital Advance Mobile Phone Service
DCC - Digital Color Code
DTA - Data Transfer Adapter
DTC - Digital Traffic Channel
EDGE - Enhanced Data Rates For Global Evolution
EDI - Electronic Data Interchange
EIR - Equipment Identity Register
ESMR - Enhanced Specialized Mobile Radio
ETACS - Extended TACS
ETDMA - Extended Time Division Multiple Access
FDD - Frequency Division Duplex
FDM - Frequency Division Multiplexing
FDMA - Frequency Division Multiple Access
FM - Frequency Modulation
FSK - Frequency Shift Keying
GGSN - Gateway GPRS Support Node
GMSC - Gateway Mobile Switching Center
GMSK - Gaussian Minimum Shift Keying
GPRS - General Packet Radio Service
GPS - Global Positioning System
GSM - Global System For Mobile Communications
GSN - GPRS Support Node
HLR - Home Location Register
IC - Interchange Carrier
iDEN - Integrated Dispatch Enhanced Network
IMEI - International Mobile Equipment Identifier
IMSI - International Mobile Subscriber Identity
ITU - International Telecommunication Union
IWF - Interworking Function
LBS - Location Based Services
LMR - Land Mobile Radio
MC - Message Center
MC - Multicarrier Mode
MCS - Mobile Cellular System
ME - Mobile Equipment
MIN - Mobile Identification Number
MIRS - Motorola Integrated Radio System
MSC - Mobile Station Class
MSC - Mobile Switching Center
MTS - Mobile Telephone Service
NAMPS - Narrowband Advanced Mobile Phone Service
NMT - Nordic Mobile Telephone
NPDB - Number Portability Database
NTACS - Narrowband Total Access Communication System
PAD - Packet Assembler And Disassembler
PCM - Pulse Coded Modulation
PCN - Personal Communications Network
PCS - Personal Communication Services
PDA - Personal Digital Assistant
PDC - Personal Digital Cellular
PDSN - Packet Data Switched Network
PM - Phase Modulation
PM - Pulse Modulation
PN - Packet Number
PN - Pseudo-Random Noise
PPDN - Public Packet Data Network
PSTN - Public Switched Telephone Network
PTT - Post, Telephone And Telegraph
PTT - Push To Talk
QoS - Quality Of Service
RAN - Radio Access Network
RNC - Radio Network Controller
SCH - Synchronization Channel
SDMA - Spatial Division Multiple Access
SGSN - Serving General Packet Radio Service Support Node
SIM - Subscriber Identity Module
SIS - Subscriber Identity Security
SMS - Short Message Service
SMSC - Short Message Service Center
TACS - Total Access Communications System
TCH - Traffic Channel
TDD - Time Division Duplex
TDMA - Time Division Multiple Access
TD-SCDMA - Time Division Synchronous Code Division Multiple Access
TIA - Telecommunications Industry Association
UE - User Equipment
UMTS - Universal Mobile Telecommunications System
UPR - User Performance Requirements
USB - Universal Serial Bus
VLR - Visitor Location Register
VMS - Voice Mail System
WCDMA - Wideband Code Division Multiple Access
WLAN - Wireless Local Area Network
A device is a unit of hardware , outside or inside the case or housing for the essential computer (processor, memory, and data paths) that is capable of providing input to the essential computer or of receiving output or of both. When the term is used generally (as in computer devices ), it can include keyboards, mouses, display monitors, hard disk drives, CD-ROM players, printers, audio speakers and microphones, and other hardware units. Some devices such as a hard disk drive or a CD-ROM drive, while physically inside the computer housing, are considered devices because they are separately installable and replaceable. With notebook and smaller computers, devices tend to be more physically integrated with the "non-device" part of the computer.
