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					 Operating systems
      “OS Blackberry”




             By:

  Eko Prasetianto (09622009)

   M. Ali Hamdi (09622035)

  Mansur Hidayat (09622048)




    Information Engineering

Universitas Muhammadiah Gresik

            2011
                                             DISCUSSION

                                               HISTORY

BlackBerry devices were introduced in 1997 by a Canadian company, Research in Motion
(RIM). This device has the ability to convey information of wireless data networks.
Understanding the BlackBerry is a device handshet senidiri mepunyai wireless push email
capabilities, cell phones, sms, fax internet, browsing, and other wireless capabilities. BlackBerry
began to be introduced in Indonesia in December 2004 by the operator in Indonesia. BlackBerry
market began enlivened by various operators by providing a wide selection of services such as
BlackBerry Internet Service and BlackBerry Enterprise Server + (BES +). + BES is a service of
the BES and BIS, is intended for corporate customers so that customers can receive and send
work email-based Microsoft Exchange, Novel Wise, Lotus Domino and 10 accounts
POP3/IMAP based e-mails via mobile phones. BlackBerry facility so far been applied in various
companies where the employees required to wear a device called a multi-tasking is.


                                     ARCHITECTURE BLACKBERRY

Sort sorts of architectural blackberry

• System full backup / recover partially or fully facilitate the user in backing up critical data

• When replacing the new BlackBerry units, simply use the device and change the function of
important data and settings of 3rd party software (compatible) will tercopy easily into the new
BlackBerry device.

• AutoText function, simply by specifying the keyword and then associate it with the contents of
substitutes typically contain text / characters long, and is used by typing the keyword, then the
substitute will replace the contents of these keywords

• Search function is helpful to seek information or data stored either on the BlackBerry device or
in the Internet network.

• Profile on the blackberry is very flexible. For each email account, sms, mms, phone, facebook
and others can be set ringtone / vibrate and LED sign is different.

• speed dial feature on the blackberry qwerty az much choice, minus the default key will be very
helpful in making a call quickly.

• Customize Advanced Theme for user level allows users to easily design and designing your
own theme as needed. It takes only image editing software.

• geotagging function on blackberry air-GPS can make the photos taken from the BlackBerry
device contains terserbut Opera-location.
                                             SCHEDULING

BlackBerry OS uses cooperative multitasking so no other applications can precede in midstream, unless
the application explicitly yield control. All applications run simultaneously and managed by the
application server. Each application at startup, received the thread execution. They can also create and
destroy additional threads dynamically.
Threads can run in the background waiting for a message or data to be processed, or they can be run in
front of a user interface control, display, and inputs such as keystrokes. Foreground tasks including
context, such as displaying a bitmap display, showing on the LCD, and accept all the buttons and
trackwheel input. Any task that is not in the foreground, still retain a copy of the bitmap LCD display
screen in that context. So, can manipulate at any time. When a foreground thread is changed to a
different thread or task, new tasks are placed bitmap displays on the LCD and now, he receives all
input.Komunikasi between the OS and the thread carried by the messaging system. Such as event-driven
systems, applications receive a message that describes the system events and association parameters.
Then, they send to the thread to be processed.



                                       MEMORY MANAGEMENT

Blackberry memory is divided into three parts:
Application Memory (128MB) memory space for storage and overhead applications
Device Memory (850MB) to store files and other media
Memory Card (optional) an optional method of file storage

A common criticism of the BlackBerry Device that memory can not be allocated to complete the
Application Memory

This is very inconvenient as the application memory to handle all the overhead costs for running
the application. If the device also has memory card storage, this makes mubadzir Device
Memory.

Also, the manager does not release memory after app is closed, these devices can cause quite a
slowdown over time or long-term use, this is a major drawback for devices that are marketed
primarily in the business
                                         EXCESS BLACKBERRY


• System full backup / recover partially or fully facilitate the user in backing up critical data

• When replacing the new BlackBerry units, simply use the device and change the function of
important data and settings of 3rd party software (compatible) will tercopy easily into the new
BlackBerry device.

• AutoText function, simply by specifying the keyword and then associate it with the contents of
substitutes typically contain text / characters long, and is used by typing the keyword, then the
substitute will replace the contents of these keywords

• Search function is helpful to seek information or data stored either on the BlackBerry device or
in the Internet network.

• Profile on the blackberry is very flexible. For each email account, sms, mms, phone, facebook
and others can be set ringtone / vibrate and LED sign is different.

• speed dial feature on the blackberry qwerty az much choice, minus the default key will be very
helpful in making a call quickly.


Multimedia

• Function BBM (BlackBerry Messenger) which is one of the BlackBerry security features that
provide services to chat to fellow BlackBerry users.

• Customize Advanced Theme for user level allows users to easily design and designing your
own theme as needed. It takes only image editing software.

• geotagging function on blackberry air-GPS can make the photos taken from the BlackBerry
device contains terserbut Opera-location.

• The display has been integrated multimedia access and very comfortable to use.
Security

• By enabling the password function, in case of loss of blackberries, thieves enter the wrong
password will erase all data (wipe) on your blackberry, so your important data is not easily
retrieved.

• firewall feature, it is very effective in blocking the sms / mms / phone call that we do not want.
                                WEAKNESSES BLACKBERRY

Features

• Not to support the conference call.

• There is no native application to receive and send faxes.

• The function of native recording (voice recorder) has a recording quality is less satisfactory and
only able to record 10 minutes and in a format that is not common (such as mp3, wav etc) ..

• blackberry qwerty on, spell check that helps pengecheckan typos can ONLY be run if
completed typed all. In fact a typo it should be able to check while we do the typing.
Software

• All third-party applications installed along the internal memory, so that the internal memory
(RAM) blackberries are limited, not many third-party applications that can be installed
(especially on the old blackberry type), although already available software that can move the
installation of 3rd party software on memory cards - when to use 3rd party program remains
loaded in the internal memory (RAM).

• 3rd party software is not installed automatically terbackup when we do backup, do a special
trick to backup the 3rd party software. unless you are willing to install the 3rd party software
after you upgrade / downgrade the OS.


Email

• Synchronization between blackberries and email on the server, especially for the email that we
delete the blackberry is often not working well, so often times the emails that we delete the
blackberry and we purge and reconsile (from the menu Reconsile), remains interested in mail
client PC / Laptop we, of course it is annoying because we have to re-examine where the email
should delete the back and we do not delete on blackberry to our archive in the mail client PC /
Laptop us.

• The size of a file can be sent and received maximal 2.9Mb
Browser

• blackberry default browser displays the webpage was not perfect, javascript and animated
                                          CONCLUSION

Overall, the BlackBerry OS has many advantages that make it attractive to consumers.
Especially the consumer from the business world and adolescents. This is because the
BlackBerry OS is very supportive to communicate, whether in the form of email, chat, social
networks, and others.
In addition, all such services can be enjoyed by consumers in one package is valued at an
affordable price. With the package the consumer can enjoy a variety of BlackBerry data service
with no limit depends on the package. Consumers can browse, social networking, email, and
others.
Disclosure of the BlackBerry OS with a variety of third-party applications to make the
BlackBerry OS is rich in features and value-added that can increase consumer appeal for
memiliiki output products RIM.




REFERENCES

http://id.wikipedia.org/wiki/BlackBerry

				
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