Mobile Device with its Features and Evolution

Mobile Device with its Features and Evolution

What is a mobile device?  

What is a mobile device?

An important feature is the concept of mobility, mobile devices are small to behave and be easily employed during transport. In many cases they can be synchronized with a computer system for updating applications and data.

Another feature is that you can connect to a wireless network, for example, a mobile phone, pocket communicators or PDAs. These devices behave as if they were directly connected to a network via a cable, giving the impression to the user that the data is stored on the device itself.


The concepts of mobile device and wireless are often confused. A PDA with data on it and applications to manage, can be mobile but need not be wireless, as you may need a cable to connect to the computer and get or send data and applications. On the other hand, a mobile phone equipped with a small browser can make the use of the Internet considering wireless but not mobile, because it has no added value as an extra feature that provides some function in applications where the device It is not connected to other systems such as computers, cameras, etc. If the PDA is able to connect to a network to obtain data in the middle of the street, it considers wireless.




What are mobile devices?

What are mobile devices



Some examples of these devices are:



-Pocket communicators

-Internet Screen Phones

-Car navigation systems

-Entertainment systems

-Television systems and Internet (WebTV)

-Mobile phones

-Organizers and PDAs (Personal Digital Assistant)


The world of the mobile is in fashion, there are only displayed around us to realize. A common example is the mobile phone users because they have multiplied their level making it the largest and most widespread example of that market. However, not only the phone, but also MP3 players, game consoles, agendas and personal assistants and laptop computers have rocked the finest goal of human.


In this miniature world we must add a new member who, in recent years, is experiencing considerable growth. We talked about the phones, computer systems known terms as palm-size PC, handheld, pocket and so on. Its technical characteristics to some extent have limited the possibilities of these systems with respect to current computer equipment, but keep in mind that many of them have processing power and similar to the desktop over few years capacity. The clear and sight difference is that power and capacity can now be carried in a pocket.






Both devices and operating systems that enable its operation have evolved according to the needs of users. Those with a keyboard or based on a touch screen for data entry are currently two types of mobile devices exist mainly.


Keyboards mobile systems are necessarily reduced in size which could make use not too comfortable, but everything depends on our hands and fingers (many people are faced with the problem of not being able to avoid pressing multiple keys at the same time, as they are smaller than their fingers).

To replace the entire keyboard is used a pencil on the screen itself. The weight and size of the device can be reduced, and energy consumption that contributes to the increased battery life. However, it poses the problem of data entry. There are basically two options: using a keyboard on the screen, on which you can get by clicking with the pen itself or recognize the direct writing of the user.


One of the major problems posed by small devices such as PDA, is the mechanism used to allow the user to enter information. If the dimensions are not sufficient to include a useful keyboard are several possible solutions: handwriting recognition, on-screen keyboard or an external keyboard.


The ability to connect an external keyboard to PDA, but feasible and available, it is not the right thing when what you want is mobility, since they would have to carry not only the master device but also with keyboard and possibly connecting cables. If we need a physical keyboard for entering data with some agility, probably the best option is to opt for a PDA to include it as an integral part of the device.

The onscreen keyboard which is pressed with the tip of a small pencil is an effective alternative to physical keyboard representing a considerable saving of space, weight, a lesser extent and energy.


Likewise, it also has the method could be considered natural, direct writing on the screen of the device. To make this possible, however, the PDA should have recognition software including efficient enough characters; otherwise, it will lose more time to make corrections in the actual data entry.


The family of mobile device that uses the Palm OS features to recognize a well-defined set of characters known as Graffiti, the user of the PDA must learn that. It is a simple alphabet that helps the recognition software that is more effective to have less chance of error. Most Palm OS accepts introduces only display characters written in this reduced area.


In contrast to the Palm, other devices such as the Pocket PC have software natural handwriting recognition, which means there is no need to learn any set of strokes. The effectiveness depends on the precision, which the software is able to recognize the writing of each user.


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