smartphone prashant patel
Post on 17-Aug-2014
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DESCRIPTIONAbout a smartphone
- By Prashant patel
- A smartphone, or smart phone, is a mobile phone built on a mobile operating system, with more advanced computing capability and connectivity than a feature phone.
- Devices that combined telephony and computing were conceptualized as early as 1973, and were offered for sale beginning in 1994. The term "smartphone", however, did not appear until 1997, when Ericsson described its GS 88 "Penelope" concept as a Smart Phone. IBM Simon and charging base (int. August 16, 1994)
- 1. 2. 3. 4. 5. 6. 7. 8. The Operating systems that operates a smartphone, tablet, PDA, or other mobile device A mobile operating systems is also referred to as mobile OS. Features of Mobile OS. Including a Touch screen Camera Video Camera Speech Recognition Voice Recorder Music Player Near Field Communications Infrared Blaster
- 1. 2. 3. 4. 5. 6. 7. 8. 9. Android iOS Windows Phone BlackBerry Bada Symbian Palm OS Windows Mobile Open-source development
- Android Android is an open-source platform founded in October 2003 by Andy Rubin and backed by Google. The first phone to use Android was released in October 2008. It was called the HTC Dream and was branded for distribution by T-Mobile as the G1.
- Android Android Android Android Android Android Android Android 1.5 Cupcake 1.6 Donut 2.0,2.1 Eclair 2.2 Froyo 2.3 Gingerbread 3.0 Honeycomb 4.0 Ice Creams Sandwich 4.1,4.2,4.2: Jelly Beam And The next upcoming Android Versions Android 4.4 kitkat
- 1. 2. On February 15, 2010, Microsoft unveiled its nextgeneration mobile OS. Windows Phone 7 Windows Phone8
- 1. 2. 3. 4. 5. Display Camera and Video Radio and television GPS services Popular applications
- 1. 2. 3. Screens on smartphones vary largely in both display size and display resolution. The most common screen sizes range from 3 inches to over 5 inches (measured diagonally). Common resolutions for smartphone screens vary from 240320 (QVGA) pixels to 10801920 (Full HD),with flagship Android phones commonly sporting full HD.
- Smartphone cameras are progressively improving: Higher pixel resolution and ISO speed sensor, lower F-number (bright and fast) lens, and better digital image processing for noise reduction. pixel device (pixel resolution, sensor size, 35 mm equiv. resolution focal length, F-number) 40MP 40MP Nokia Lumia 1020 (41MP, 1/1.5, 25mm, f/2.2), Nokia 808 Pureview (41MP, 1/1.2, 26mm, f/2.4) 20MP Sony Xperia Z1 (20.7MP, 1/2.3, 27mm, f/2.0),Nokia Lumia 1520 (20MP ,1/2.5" ,26mm , f/2.4) 10MP Lenovo K900 (13MP, ?, ?mm, f/1.8), Samsung Galaxy S4 (13MP, 1/3.06, 31mm, f/2.2), Motorola Moto X (10MP, 1/2.6, 30mm, f/2.4)
- Smartphone cameras are progressively improving: Higher pixel resolution and ISO speed sensor, lower Fnumber (bright and fast) lens, and better digital image processing for noise reduction. pixel device (pixel resolution, sensor size, 35 mm equiv. resolution focal length, F-number) 40MP 40MP Nokia Lumia 1020 (41MP, 1/1.5, 25mm, f/2.2), Nokia 808 Pureview (41MP, 1/1.2, 26mm, f/2.4) 20MP Sony Xperia Z1 (20.7MP, 1/2.3, 27mm, f/2.0),Nokia Lumia 1520 (20MP ,1/2.5" ,26mm , f/2.4) 10MP Lenovo K900 (13MP, ?, ?mm, f/1.8), Samsung Galaxy S4 (13MP, 1/3.06, 31mm, f/2.2), Motorola Moto X (10MP, 1/2.6, 30mm, f/2.4)
- Some smartphones support FM radio, but noisesensitive AM radio is usually not supported. In some regions, such as Japan and Korea, most smartphones support mobile digital broadcasts (1seg or T-DMB), while some smartphones support regular digital broadcasts
- GPS capability is available on phones within each of the three major mobile operating systems
- According to a ComScore report released on May 12, 2011, nearly one in five smartphone users are tapping into check-in services like Foursquare and Gowalla. A total of 16.7 million mobile phone subscribers used location-based services on their phones in March 2011. Research published by Forrester Research in mid2013 revealed that in a survey of 13,000 iPhone users and 15,000 Android users in the U.S. weather apps were the most popular across both platforms, followed by social networking, navigation/mapping, and gaming apps
- 1. 2. 3. 4. 5. 6. The Hardware components of smartphone Processors Graphics Memory & Storage Displays Connectivity & Sensors Batteries
- When reviewers are talking about the processors inside a smartphone they are usually actually referring to the system-on-a-chip. combination chipset that features things such as the actual processor cores, the graphics chipset, the RAM and possibly ROM as well, interface controllers for things such as USB and wireless tech, voltage regulators and more. A
- The actual processing cores are just one part of the overall system-on-a-chip that forms the basis of all modern phones. Along with said processing cores and other subsystems in the SoC you find the graphics processing unit, or GPU, in very close proximity to the processor.
- Memory is important parts that are located on the mainboard inside the smartphone. Specifically the memory (or Ram) and the on-bord ans External storage (Rom) Random Access Memory(RAM) Internal storage and ROM Size and Speed are Everything User removable storage
- RAM, which is short for random access memory. RAM one of the critical components of the smartphone along with the processing cores and dedicated graphics. Without RAM in any sort of computing system like this your smartphone would fail to perform basic tasks because accessing files would be ridiculously slow.
- Like RAM, internal storage is critical to a smartphones operation; without any place to store the operating system and critical files there would be nothing for the phone to do. Even if a phone has no storage accessible to the user, there will also be some form of internal storage that stores the operating system.
- First and foremost when it comes to looking at a smartphones RAM is the size. Its fairly straightforward here to see that more is better, as the larger the capacity the more information can be stored and accessed quickly by other subsystems.Generally you shouldnt be concerned about more storage using more power Combined with a clever operating system, copious amounts of RAM arent necessary.Smartphone applications generally use a small amount of RAM (around 50 MB).
- User removable storage Sometimes user removable storage is called external storage due to the fact that it can be removed. Nowadays all smartphones that have user removable storage use microSD cards, with a few tablets offering full-sized SD card slots. Out of the three major smartphone operating systems (iOS, Android and WP7), Android is the only one that really supports removable storage. MicroSD (and standard SD) cards are available in three different size classes. The original SD specification allowed cards up to 2 GB in size, and then SDHC (SD High Capacity) increased the size limit to 32 GB.
- When it comes to smartphone displays, there are two main type that are Utilized the first of which is LCD,LCD stands for Liquid Crystal Display. smartphone screens vary from 240320 (QVGA) pixels to 10801920 (Full HD).
- Sensors A sensor is a converter that measures a physical quantity & converts it into a signal which can be read by an observer or an instrument Many type of sensors are use in a smartphone Overview Accelerometer GPS Gyroscope Magnetometer Proximity Sensors Touch screen sensor
- Measures proper acceleration (acceleration it experiences relative to freefall), felt by people or objects Units: m/s2 or g Most smartphone accelerometers trade large value range for high precision, iPhone 4 range: 2g, precision 0.018g Acceleration is measured on 3 axes
- Location sensors detect the location of the smartphone using either GPS Lateration/Triangulation of cell towers or wifi networks (with database of known locations for towers and networks) Location of associated cell tower or wifi network
- Connection to 3 satellites is required for 2D fix (latitude/ longitude), 4 satellites for 3D fix (altitude) More visible satellites increase precision of positioning Typical precision: 20-50m, maximum precision: 10m
- Caveats GPS will not work indoors GPS quickly kills your battery A location fix takes a long period of time (30s12m), A-GPS helps Buildings reflect and occlude satellite signals thereby reducing precision of positioning in urban environments Smartphones can try to automatically select the best suited alternative location provider (gps, cell towers, wifi), mostly based on desired precision
- Detects the current orientation of the device, or changes in the orientation Precisely: orientation can be computed from the angular rate that is detected by the gyroscope, expressed in rad/s on 3 axis:
- 1. 2. Measures the strength of earths magnetic field Strength is expressed in tesla [T] Smartphones provide raw magnetometer data and a computed compass bearing Applications Compass, of course rotate maps/interfaces/graphics according to bearing Tricorder, detect magnets, force fields, klingon shield strength.
- A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal. The object beingsensed is often referred to as the proximity sensor's target. Applications 1. Touch screens that come in close proximity to the face 2. Attenuating radio power in close proximity to the body, in order to reduce radiation exposure.
- A touch screen sensor is a clear glass panel with a touch responsive surface. The touch sensor/panel is placed over a display screen so that the responsive area of the panel covers the viewable area of the video screen. The sensor generally has an electrical current or signal going through it and touching the screen can cause a voltage or signal change. This change is used to determine the location of the touch to the screen. Multi-touch technology Multi-touch denotes a set of interaction techniques which allow computer users to control graphical applications with several fingers.
- The more functionality we pack into our smartphones, the more power they need to run. The battery is the lifeblood of your mobile phone. The designers of mobile phones try hard to minimize and use more efficiently the power that the batteries use, which in turn gives longer service from smaller, lighter cell phone batteries. Types of Cell Phone Batteries Lithium Polymer (Li-Poly) Batteries Lithium Ion (Li-Ion) Batteries Nickel Cadmium (NiCd) Batteries Nickel Metal Hydrid (NiMH) Batteries
- Smartphone application distribution was largely dependent on third-party sources providing applications Smartphone Customer for multiple platforms, such as GetJar, Handango, Handmark, PocketGear, and others. Store 2009 (millions U.S.) 2010 (millions U.S.) Apple App Store $769 $1782 Blackberry App World $36 $165 Nokia Ovi Store $13 $105 Google Play $11 $102 Total $828 $2155
- Smartphone usage For several years, the demand for smartphones has outpaced other products on the mobile phone market. According to a 2012 survey, around half of U.S. mobile consumers own smartphones. They could account for around 70% of all U.S. mobile devices by 2013; in the 25 to 34 age group, smartphone ownership is so far reported at 62%. For the third quarter of 2011, the NPD Group reported that in the U.S., the proportion of handset sales that were made up of smartphones reached 59% for consumers aged 18 and over.
- Year Android (Google)
- Mining for resources The amount of pollution that results from the production of a smartphone until its disposal is substantial. The environmental impact of these devices can be understood by observing its product life cycle.
- Another major issue associated with cell phones is the process by which they are disposed of after the end of their lifespan. Companies have been responsible for improperly recycling their old/used smartphones causing damage to the environment. Cell phones can contain dangerous chemicals such as antimony, cadmium, copper, lead, arsenic, nickel and zinc These chemicals have the potential to run off into surrounding water bodies or seep into soil causing harmful effects to wildlife and even the human population. Chemicals running off into surrounding water bodies could make their way into drinkable water systems and contaminate this supply.
- New programs and control measures are the focus of the future as countries strive to produce initiatives where consumers can properly dispose of their smartphone. An example of such an initiative is called Recycle My Cell which has been established in Canada since 2008 which assists Canadian residents in disposing of their cell phones properly. Cell phones that cannot be salvaged will be recycled in accordance with the Basel Convention on the trans-boundary movement of hazardous waste and their disposal.
- A study conducted by the University of Vienna found that social factors played a major role in the usage of mobile phones. Especially the subjective belief of how users are seen by significant others, or how they would like to be seen by significant others seem to play a major role. There are numerous smartphone applications that have positive social and environmental effects. For example, smartphones have proven to be useful tools for encouraging energy conservation by assisting crowd source building energy audits.