Symbian

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Issue:

Technology

 

Written by:

Cynthia B

 

Date added:

August 17, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

8 / 2123

 

Was viewed:

7219 times

 

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Essay content:

This adaptability allows Symbian OS to be used on smartphones with a variety of form factors (e.g. clam-shell or "monoblock"/"candybar", keypad- or pen-driven). Symbian OS, with its roots in Psion Software's EPOC (which itself had similarities to the internals of VMS, a grown-up POSIX compatible operating system for mini-computers in the 1980s) is structured like many desktop operating systems, with pre-emptive multitasking, multithreading, and memory protection...
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There is a strong emphasis on conserving memory, using Symbian-specific programming idioms such as descriptors and a cleanup stack. Together with other techniques, these keep memory usage low and memory leaks rare. There are similar techniques for conserving disk space (though the disks on Symbian devices are usually flash memory)...
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