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Recent content by avssunil

  1. A

    interfacing ethernet cable

    U need to have the ethernet driver
  2. A

    Mutual Exclusion concept in railway reservation???????

    How is resservation done in Railway station as thousands of computers will be connected to the same database???How can all those computers access at the same time?? For example,if one person at 1 station is trying for some resevation for a particular place and at the same time if some other...
  3. A

    difference between "open" and "fopen"

    What is the exact difference between "open" and "fopen". Can we use "open" in place of "fopen" in a program and vice versa.
  4. A

    Why is the device driver so special?

    Why is the device driver so special???? What makes it so important???Why the device driver is not integrated in the OS???
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    Relocation during linking--what is it???

    Hi, What is the exact meaning of "Relocation" during linking process???What happens during reloaction and why relocation is necessary???
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    Is the data transfer through JTAG serial or parallel

    I would like to know if the data transfer through JTAG is serial or parallel???
  7. A

    What happens when a proccess is in a critical section and an interrupt is generated?

    Whenever a proccess is in a critical section and an interrupt is generated,what will happen to tht interrupt,how is that processed??/ What will happen if no of interrupts are generated at the same time????
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    difference between semaphore and mutex

    Hi, I would like to know the correct and exact differences between semaphore and mutex?? When is a SEMAPHORE used and when is a MUTEX used????
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    How does a Turbo C compiler work?

    I would like to know how the compiler works.I have Turbo C installed in my PC and there are 2 folders in it. INCLUDE--which has all the header files LIB---some obj files are present. I would like to how when compiling a C program,how does the code gets compiled,ie when the compiler encouters...
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    Application of polling concept in Real Time Embedded Systems

    Re: Polling Concept. Hi, Thanks for the asnwer,but what about hard real time systems????Will the interrupt concept come instead of polling,pls clear this also.
  11. A

    Application of polling concept in Real Time Embedded Systems

    Re: Polling Concept. Hi, Thanks for the asnwer,but what about hard real time systems????Will the interrupt concept come instead of polling,pls clear this also.
  12. A

    memory allocation in stack and queue.

    Hi, How is the memory allocated in stack and queue???What is the structure in it???
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    Application of polling concept in Real Time Embedded Systems

    Polling Concept. Hi, I have a doudt in the polling concept.The processor polls for every N seconds to see if the device is ready and if so,the device finishes its job before X sec,what will happen in the N-X seconds???How will this latency be overcome in Real Time Embedded Systems...
  14. A

    What does it mean that kernel memory is unswappable?

    Hi All, I have read that "kernel memory is unswappable,and thus allocating extra memory in the kernel is a far worse thing to do in the kernel than in a user-level program",but we have functions like kfree() and kfree_s() to free the memory from the kernel,so wht do the above statement...
  15. A

    thumb rule for Variable in C

    Ther is no such thumb rule as such as how many variables a program should have.It depends on the complexity of the program and the way you structure a program.Learn the nuacnes of the C program and then use that to declare a particular variable as "static" or "extern" or "register". Go...
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