Common Mobile Devices

MOBILE DEVICES AND ITS TYPES

A mobile device is a handheld tablet or other device that is made for portability, and is therefore both compact and lightweight. New data storage, processing and display technologies have allowed these small devices to do nearly anything that had previously been traditionally done with larger personal computers.

Today's mobile devices are multifunctional devices capable of hosting a broad range of applications for both business and consumer use.There are many different types of mobile devices, some of them include:

DIGITAL CAMERA

• A digital camera is a camera that encodes digital images and videos digitally and stores them for later reproduction. Most cameras sold today are digital and digital cameras are incorporated into many devices ranging from PDAs and mobile phones (called camera phones) to vehicles
• Unlike film cameras, digital cameras can display images on a screen immediately after being recorded, and store and delete images from memory. Many digital cameras can also record moving videos with sound. Some digital cameras can crop and stitch pictures and perform other elementary image editing.
• Digital cameras come in a wide range of sizes, prices and capabilities. In addition to general purpose digital cameras, specialized cameras including multispectral imaging equipment and astrographs are used for scientific, military, medical and other special purposes.
• Sales of traditional digital cameras have declined due to the increasing use of smartphones for casual photography, which also enable easier manipulation and sharing of photos.

DIGITAL VIDEO CAMERA

A video camera is a camera used for electronic motion picture acquisition (as opposed to a movie camera, that earlier recorded the images on film), initially developed for the television industry but now common in other applications as well.

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Modern video cameras have numerous designs and uses, which are listed below.

• PROFESSIONAL VIDEO CAMERA: Video cameras such as those used in television production; these may be television studio-based or mobile in the case of an electronic field production (EFP). Such cameras generally offer extremely fine-grained manual control for the camera operator, often to the exclusion of automated operation. Usually uses 3 sensors to record separate of Red, Green and Blue.
• CAMCORDERS: which combine a camera and a VCR or other recording device in one unit; these are mobile, and were widely used for television production, home movies, electronic news gathering (ENG) and similar applications. Since the transition to digital video cameras, most of the cameras have in-built recording media and as such are also camcorders.
• CLOSED CIRCUIT TELEVISION (CCTV): generally use pan tilt zoom cameras (PTZ), for security, surveillance, and/or monitoring purposes. Such cameras are designed to be small, easily hidden, and able to operate unattended.
• WEBCAMS: are video cameras which stream a live video feed to a computer.
• CAMERA PHONES: nowadays most video cameras are incorporated in mobile phones.

HANDHELD GAME CONSOLES

A handheld game console is a lightweight, portable video game console with a built-in screen, game controls, and speakers. Handheld game consoles are smaller than home video game consoles and contain the console, screen, speakers, and controls in one unit, allowing people to carry them and play with them at any time or place.

Some common handheld game consoles include PlayStation , Game boy, Wii, Xbox, Atari etc.

WEARABLE COMPUTER

• Wearable computers, also known as body-borne computers or wearable are miniature electronic devices that are worn by the bearer under, with or on top of clothing. 
• Wearable computers are especially useful for applications that require more complex computational support than just hardware coded logic.

• One of the main features of a wearable computer is consistency. There is a constant interaction between the computer and user, i.e. there is no need to turn the device on or off. Another feature is the ability to multi-task. It is not necessary to stop what you are doing to use the device.
• The wearable devices was initially introduced in US Army for military use in 1989 to assist soldiers in war.

• It has been estimated that the global wearables market will grow at a compound annual rate of 35% over the next five years, reaching 148 million units shipped annually in 2019, up from 33 million units shipped this year. 

PERSONAL NAVIGATION DEVICE

• A Personal Navigation Assistant (PNA) also known as Personal Navigation Device or Portable Navigation Device (PND) is a portable electronic product which combines a positioning capability (such as GPS) and navigation functions.
• The earliest PNAs were hand-held GPS units,which were capable of displaying the user's location on an electronic map. 
• The first generation of PNAs were used by the US military.
• According to the analyst firm Berg Insight, there were more than 150 million turn-by-turn navigation systems worldwide in mid-2009, including about 35 million factory installed and aftermarket in-dash navigation systems, over 90 million Personal Navigation Devices (PNDs) and an estimated 28 million navigation-enabled mobile handsets with GPS.