Mobile Phone Technology, Don't miss this function when you go to buy a smartphone read it.- A Mobile Phone is a portable communication device, which uses cellular network technology to make and receive calls.
A mobile phone helps in accomplishing the following tasks
Basic Phones: They are used for making calls and messaging. They have limited features and a small display size. They are available in single and dial SIM models. Some models have FM receiver. The drawback of this is that it has very limited connectivity options.
Feature Phones: They are low-end mobile phone with lesser computing ability than smartphones. They are available in single and dial SIM models. The display is standard definition. It has very few connectivity options. The camera is VGA/2MP with video recording options. The basic features are browser, music player, expandable memory etc.
Smart Phones: They have powerful computing capability, are available in single and dual SIM models. They have multi tasking ability, Smart phones are available in Qwerty/Touch/Touch & Type. They have advanced Camera with upto 4K video recording. They have additional features such as Video Calling, A-GPS, MHL, NFC etc
Mobile Networks
There exist 2 types of services-GSM and CDMA. Worldwide GSM share is 76% and CDMA share is 24% There are a variety of handset options available for GSM where as CDMA network offers better call quality. Multiple service providers for GSM, limited for CDMA.
Frequency Bands
Bands are cellular frequencies designated for operation of GSM services. Different countries use different bands. Mobile handsets may only be able to receive certain frequencies. There are five different types available:
Mobile internet connectivity
Mobile technology is entering its most advance generation with the roll out of 3G/4G VoLTE offering faster internet connectivity and data calling.
Types of Operating System
iOS: This a closed source OS designed by Apple. It has multtasking ability and a multi touch interface. The update support is through sync/patch updates. The browser used is Safari. There is no Adobe Flash support. Applications are available from Apple's app store
Android OS: It is an open source OS designed by Google. It has multi tasking ability and a multi touch interface. The update support is over internet. The browser used is Chrome/Webkit. It support Adobe Flash. Applications are available from the android market i.e. Play Store.
Windows OS: This a closed source OS designed by Microsoft. It has restricted multi tasking ability and a multi touch interface. The update support is by Microsoft. The browser used is Internet Explorer (IE). Adobe Flash is supported. Application availability is by the brand.
BlackBerry os This a closed source OS designed by BlackBerry. It has multi tasking ability and a multi touch interface. The update support is through sync/ patch updates. The browser used is BlackBerry. Adobe Flash is supported. Applications are available from the BlackBerry App World.
Symbian Os: It is an open source platform and it is available in Nokia mobiles. It has multi language support. The browser is Opera/ Web kit browser. It comes with multi tasking capability
Near Field Communication (NFC): Used to establish radio communication between smartphones & similar devices. Data exchange between devices happen by touching or bringing them into proximity.
USB: Used for connecting the mobile phone to computer for data transfer. USB port can also be used for charging.
GPRS: Used to connect to internet through the 2G, 3G or 4G cellular networks. GPRS provides data rates of 56-114 kbit/second. The speed of internet may depend on the number of other users sharing the service concurrently.
Wi-Fi: Allows a device to exchange data or connect to the internet wirelessly. Can be used to Connect to Wi-Fi networks in public areas like airports and coffee shops to access internet.
MHL: Mobile High Definition link uses a single, thin cable to connect the mobile device to the TV. It supports up to HD video and 7.1 surround sound audio.
Bluetooth: Wireless technology standard for exchanging data over short distances. Low power consumption. Used to connect mobile phone with hands free headset. Used to transfer data with other Bluetooth enabled devices.
Panorama mode: create panoramic image by moving the phone in a smooth horizontal or vertical arc, Multiple images are stitched together to create one panoramic image.
Burst Mode: Captures multiple frames with one click, recommended for moving object.
Image with sound: Captures sound with still images.
Dual Shot: Simultaneously shooting with the front cameras. Two cameras, one extraordinary photo.
Capacitive touchscreen displays rely on the electrical properties of the human body to detect when and where on a screen the user touches. Because of this, capacitive displays can be controlled with very light touch of a finger and generally cannot be used with a mechanical stylus or a gloved hand.
Resistive touchscreen displays are composed of multiple layers that are separated by thin spaces Pressure applied to the surface of the display by a finge or stylus causes the layers to touch, which completes electrical circuits and tells the device where the user is touching.
A mobile phone helps in accomplishing the following tasks
- Calls and messages
- Business applications
- Imaging
- Entertainment and gaming
- Social networking
Types of Mobile Phones
Mobile phones can be categorized as basic phones, feature phones and smart phones. The basic difference is as depicted below.Basic Phones: They are used for making calls and messaging. They have limited features and a small display size. They are available in single and dial SIM models. Some models have FM receiver. The drawback of this is that it has very limited connectivity options.
Feature Phones: They are low-end mobile phone with lesser computing ability than smartphones. They are available in single and dial SIM models. The display is standard definition. It has very few connectivity options. The camera is VGA/2MP with video recording options. The basic features are browser, music player, expandable memory etc.
Smart Phones: They have powerful computing capability, are available in single and dual SIM models. They have multi tasking ability, Smart phones are available in Qwerty/Touch/Touch & Type. They have advanced Camera with upto 4K video recording. They have additional features such as Video Calling, A-GPS, MHL, NFC etc
Mobile Networks
There exist 2 types of services-GSM and CDMA. Worldwide GSM share is 76% and CDMA share is 24% There are a variety of handset options available for GSM where as CDMA network offers better call quality. Multiple service providers for GSM, limited for CDMA.
Frequency Bands
Bands are cellular frequencies designated for operation of GSM services. Different countries use different bands. Mobile handsets may only be able to receive certain frequencies. There are five different types available:
| Band | Operating Frequencies |
| Dual Band | 900/1800 Mhz |
| Tri Band | 900/1800/1900 Mhz |
| Quad Band | 850/900/1800/1900 Mhz |
| 3G | 3rd Generation 2100 Mhz |
| 4G 5G | 4th Generation 2600 Mhz 5th Generation 3600 Mhz |
Mobile internet connectivity
Mobile technology is entering its most advance generation with the roll out of 3G/4G VoLTE offering faster internet connectivity and data calling.
Types of Operating System
iOS: This a closed source OS designed by Apple. It has multtasking ability and a multi touch interface. The update support is through sync/patch updates. The browser used is Safari. There is no Adobe Flash support. Applications are available from Apple's app store
Android OS: It is an open source OS designed by Google. It has multi tasking ability and a multi touch interface. The update support is over internet. The browser used is Chrome/Webkit. It support Adobe Flash. Applications are available from the android market i.e. Play Store.
Windows OS: This a closed source OS designed by Microsoft. It has restricted multi tasking ability and a multi touch interface. The update support is by Microsoft. The browser used is Internet Explorer (IE). Adobe Flash is supported. Application availability is by the brand.
BlackBerry os This a closed source OS designed by BlackBerry. It has multi tasking ability and a multi touch interface. The update support is through sync/ patch updates. The browser used is BlackBerry. Adobe Flash is supported. Applications are available from the BlackBerry App World.
Symbian Os: It is an open source platform and it is available in Nokia mobiles. It has multi language support. The browser is Opera/ Web kit browser. It comes with multi tasking capability
Processor
Near Field Communication (NFC): Used to establish radio communication between smartphones & similar devices. Data exchange between devices happen by touching or bringing them into proximity.
USB: Used for connecting the mobile phone to computer for data transfer. USB port can also be used for charging.
GPRS: Used to connect to internet through the 2G, 3G or 4G cellular networks. GPRS provides data rates of 56-114 kbit/second. The speed of internet may depend on the number of other users sharing the service concurrently.
Wi-Fi: Allows a device to exchange data or connect to the internet wirelessly. Can be used to Connect to Wi-Fi networks in public areas like airports and coffee shops to access internet.
MHL: Mobile High Definition link uses a single, thin cable to connect the mobile device to the TV. It supports up to HD video and 7.1 surround sound audio.
Bluetooth: Wireless technology standard for exchanging data over short distances. Low power consumption. Used to connect mobile phone with hands free headset. Used to transfer data with other Bluetooth enabled devices.
Also read:- Router technical information and types of WiFi Routers.
Camera in a Mobile Phone
Cameras in mobile phones are one of the most tought after features. Cameras mobile phones can be used for capturing images, videos and video calling. The images taken are saved as JPEG files.Panorama mode: create panoramic image by moving the phone in a smooth horizontal or vertical arc, Multiple images are stitched together to create one panoramic image.
Burst Mode: Captures multiple frames with one click, recommended for moving object.
Image with sound: Captures sound with still images.
Dual Shot: Simultaneously shooting with the front cameras. Two cameras, one extraordinary photo.
Also Read:- Know in details about Camera Technology, Function and Types of Cameras.
Mobile Screens
There are two major categories of touchscreen displays capacitive touchscreens and resistive touchscreens.Capacitive touchscreen displays rely on the electrical properties of the human body to detect when and where on a screen the user touches. Because of this, capacitive displays can be controlled with very light touch of a finger and generally cannot be used with a mechanical stylus or a gloved hand.
Resistive touchscreen displays are composed of multiple layers that are separated by thin spaces Pressure applied to the surface of the display by a finge or stylus causes the layers to touch, which completes electrical circuits and tells the device where the user is touching.
| Features | Capacitive Touch Screen | Resistive Touch Screen |
| Cost | High Cost as compared to Resistive | Lower Cost |
| Accuracy | Capacitive touch screens tend to be less accurate, but more responsive than Resistive touch screens. | Resistive Touch Screens are passive and can respond to any kind of pressure on the screen. |
| MultiTouch | Multi touch capabilities, which can recognize multiple simultaneous finger touches, allowing for enhanced manipulation of on screen objects. | Limited possibility of multi touch on a Resistive touch screen. |
| Visibility | Visibility good even in Sun light. | Visibility not good even in Sun light. |
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