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Developing an application for android encompass different steps as follows:
Setup: Development environment is prepared during this phase. This includes downloading and installing JAVA JDK (JAVA Development Kit), Eclipse IDE, Android SDK, ADT plug-in for Eclipse and the latest SDK tools and platforms using the SDK Manager. We need also to set up an Android Virtual Device (AVD) to run the computer to be used for testing developed application.
Development: During this step the logic and framework of the application is designed. Based on that, source code and resource files for your application are developed.
Debugging and Testing: During this step the code is debugged to improve performance remove errors that may develop. The build at this stage is debuggable build. There are many tools available with the Android SDK to test applications.
Publishing: The application in this stage is prepared to be released. It is configured, built and tested on some test devices. If it is prove to be stable and error free, it is distributed to users.
Define CPU scheduling. CPU scheduling is the method of switching the CPU among several processes. CPU scheduling is the basis of multiprogrammed operating systems. By switching
Convert the following from hex to binary and draw it on the memory map. RAM = 0000 -> 00FF EPROM = FF00 -> FFFF Answer: 0000 0000 0000 0000 (0) RAM sta
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Write about critical regions and monitors. Critical region definition Monitor definition Implementation of the conditional-region construct Syntax of monitor Monito
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Q. Several CPU-scheduling algorithms are parameterized for instance the RR algorithm requires a parameter to indicate the time slice. Multilevel response queues require parameters
There are three kinds of Data Abstraction: Physical level: The minimum level of abstraction defines how data are saved. Logical level: The next bigger level of a
Write a note on the usage of semaphores. Semaphore is a synchronization tool and it is a variable having integer values. It is accessed only by two standard atomic operations w
Additional-reference-bits algorithm We can keep an 8-bit byte for every page in a table in memory. The operating system shifts the reference bits right 1 bit, discarding the lo
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