Mobile computing systems are computing systems that may be easily moved physically
and whose computing capabilities may be used while they are being moved
Examples are laptops, personal digital assistants (PDAs), and mobile phones
the distinguishing aspects of mobile computing systems are their prevalent
wireless network connectivity, their small size, the mobile nature of their use
their power sources, and their functionalities that are particularly suited to the mobile
user. Because of these features, mobile computing applications are inherently
different than applications written for use on stationary computing systems
A mobile computing system, as with any other type of computing system, can be
connected to a network
Is Wireless Mobile or Is Mobile Wireless
In wireless connectivity, mobile computing devices found a great way to connect
with other devices on the network. In fact, this has been a great source of confusion
between wireless communications and mobile computing. Mobile computing devices
need not be wireless. Laptop computers, calculators, electronic watches, and many
other devices are all mobile computing devices
wireless communication systems are a type of communication system. What
distinguishes a wireless communication system from others is that the communication
channel is space itself. There are a variety of physical waveguide channels such as
fiber optics or metallic wires.Wireless communication systems do not use a waveguide
to guide along the electromagnetic signal from the sender to the receiver
There are four pieces to the mobile problem
the mobile user, the mobile device
the mobile application, and the mobile network
dimensions of mobility: the set of properties
that distinguishes the mobile computing system from the stationary computing
system
mobile computing systems
are a superset of stationary computing systems
The dimensions of mobility
tools that allow us to qualify our problem of building
mobile software applications and mobile computing systems. Although these
dimensions of mobility are not completely orthogonal with respect to each other