Computer Service Provider Contract

							What is a Mobile Computing
Monitor?



 A Mobile Computing Monitor is wireless monitor that
            access's a remote computer.
  MCM design will be like that of a laptop computer.
   Mobile Computing



MCM will help users to access their computers from
anywhere in the world while using monitors instead of having
the whole computer with them.
          Sharing A Computer



  Use of monitors for remote access is advantageous than
 having laptop or having a computer at home in that several
people can use the same computer at the same time and from
   remote locations all over the world provided they have
                     different accounts.
             Public Account


Public Account will provide a different way of accessing
information other than through web sites. The computer can
have a public account dedicated to public for monitors to
access and files can be in any form, like in a desktop.
Duplication Of Space & Work



 Most laptop users back up their information in a desktop
computer or in an account otherwise they stand to lose much
in the event that they lose the laptop or if it gets damaged.

MCM offers a better solution in that in case you lose or
damage your monitor while travelling with it, you would only
damage or lose a monitor while leaving the computer and the
information saved intact.
   Better use of Computer Resources



The MCM will help put computer resources into better use.
For example a Pentium 4 processor, 3GHz 600mb front bus
and 120Gbytes of hard drive memory is sometimes used only
to access a remote database, email or a web site. This
computer can support up to thirty users at the same time
through monitors.
Poor use of Computer Resources
Better use of Computer Resources
Maximizing use of Computer Resources
Affordable & Powerful Computer


MCM will also provide computer services to people without
computers by subscribing to a Computer Service Provider.
The Computer Service Provider can led monitors to
customers who would be paying monthly payment for
computer services. Customers should then return the
monitors after the contract is over.
In the same token people in research fields might get access
to a super computer through the monitors if they subscribe
to a provider who has a super computer.
Public Libraries and public institutions would find a way to
provide computer services to their members for little fee or
for free by lending them monitors.
Mobile Computing Monitor Design




Transceiver
              Middleware
      TECHNICAL BACKGROUND


The MCM is basically a regular monitor, the only difference
is that there is no cable connection between the monitor
and the computer. Instead the connection is done by
transceivers and middleware imbedded in both the monitor
and the computer.
              Transceiver
              IEEE 802.11b

Transceiver stand for transmitter and receiver. Since
transceivers will be used for communicating between many
computers and monitors the design for these transceivers
should take great care in order to avoid Interference.

Operating in the 2.4 GHz Industrial Scientific Medical (ISM)
band, interference can occur between the transceivers and
other devices such as wireless local area networks (LAN)
services and appliances such as microwave ovens.
        Transceiver continued ….



To help the transceivers operate successfully in the crowded
environment of the ISM band, modulation is based on
frequency-shift keying (FSK). FSK modulation is used
because it has reduced susceptibility to interference.

To make things even better use of Bluetooth's technology of
employing a spread-spectrum frequency-hopping scheme.
        Transceiver continued ….


Operating at 1.6 khops/sec in a pseudorandom sequence, the
transmitter alternates among 79 carrier frequencies over the
range 2.4 to 2.4835 GHz, with channels spaced 1 MHz apart.

This eliminates the need to perform rigorous radio planning
and improves link reliability in the presence of other ISM
spectrum users.
        Transceiver continued ….




At 3 dB baseband bandwidth, the transceiver has
1M symbols/s base rate data throughput. The asynchronous
channel supports an asymmetric link of 721 kb/s, maximum,
in either direction while enabling 57.6kb/s in the return
direction. The alternative is a 432.6 kb/s symmetric link.
       Transceiver continued ….




Regarding to power the transmitter output should range
from 0.25 to 100 Mw. The maximum permissible level is
Class 1 at 100 Mw (+20 dBm). At this power level,
transmitting and receiving range is approximately 100
meters.
          MIDDLEWARE
Middleware Technology Incorporate Several Tasks:



• Middleware provide a link between two devices or
applications.

• Transforming: Taking one language and transforming it to
another language.

• Security: Making the necessary adjustments for securing the
traffic from end to end.
         Middleware continued ….


• Identification of wireless device: Automatically identifying
which MCM is communicating and adjusting the content
according to the MCM attributes: display size, keys , color
and multimedia.

• Database application. Communicating
directly to a database application whenever necessary and
making the necessary adjustment for the MCM.
        Base Stations



Base stations are radio transmitters with antennas mounted
on either free-standing masts or on buildings. Radio signals
are fed through cables to the antennas and then launched as
radio waves into the area (cell) or to a satellite.

in addition the MCM system will use Laser beam to transmit
and receive signals from a GEO satellite.
Base Stations continued   ….
        Laser Transmission



So when a monitor sends a request signal to a remote
computer it does it through a Radio Frequency to a Base
Station equipped with a Laser antenna which then transmits
the signal through a laser beam to a geo satellite.

Use of laser for transmission for the large part of this
communication will enhance security due to the fact that laser
cannot be intercepted.
         Geo Satellites


A GEO (Geosynchronous Equatorial Orbit) satellite is a
satellite orbiting the earth from at an altitude of 22,300 miles
from earth above the equator. At that distance, it takes the
satellite a full 24 hours to circle the planet. Since it takes Earth
24 hours to spin on in its axis, the satellite and Earth move
together.

So, a GEO satellite in always stays directly over the same spot
on Earth and that why this kind of satellite is better than a LEO
(Low Earth Orbit) or a MEO (Medium Earth Orbit) for laser
transmission since Laser travels in straight line.
GEO Satellite Links
         Access


• Individual Access is situation where one person with one
monitor access a remote computer. Advantage here is
accessing your computer wherever you are.
• Group access is where several people access one remote
computer using monitors. This could be a family a company
or an institution where members use one computer through
the monitors. The computer might be a desktop computer or
a super computer. Advantage here is sharing one computer
instead of buying a computer for each individual and
possibility of affording a very powerful computer like a super
computer.
        Computer Service Provider



This new concept of a computer service provider will allow an
individual or a company to provide a virtual computer to
customers through the wireless monitor anywhere in the
world. The provider might be having a super computer and
through the wireless monitor provide access to customers for
a fee. The computer service provider might even provide the
monitor to be returned when the service ends like cable box.
Advantage is having access to a very powerful computer
where otherwise you would have none at the same time you
don’t have to worry about security and updates.
        Conclusion


• MCM provide more secure way of computing through
Computer Service Provider.

• Affordable computer services.

• A better way of providing mobile computing.

• Sharing and maximizing computer resources.
Questions




     END