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A portion of memory allocated to a device is commonly referred to as a memory-mapped I/O space or device memory. This area of memory is reserved for the device to store data related to its operations, such as buffers for input/output processing. It allows the CPU to communicate with the device by reading from and writing to specific memory addresses associated with that device. This allocation is essential for efficient data transfer and control between the CPU and peripheral devices.
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Where the Memory is allocated for a variable in a program?
if a variable is of value type memory is allocated on stack memory.. if it is of reference type,memory is allocated on heap memory..
In what are various cells of memory allocated consecutively?
Contiguous memory address are allocated to an array or vector.
How system knows what range of memory it has allocated while using free?
use free() how does the system know what range of memory it has allocated use free() how does the system know what range of memory it has allocated
What is the maximum size of memory available for dynamic memory allocation?
The maximum memory that can be dynamically allocated depends on the size of the heap memory. Dynamic blocks of memory can be allocated in system heap until it is not full.
Memory is allocated in 4k segments called what?
Memory page.
Where the heap memory is allocated in c?
Main Memory (RAM).
Max memory allocated by malloc in c?
Memory is allocated by malloc from the heap.... so max mem = size of heap that is free...
Is memory allocated for instance methods for each instance method call?
No! Instance methods are allocated memory at first time only.
Is memory allocated at runtime for the static variables?
No. Static memory is allocated at compile time. Static variables are allocated within the program's data segment which is a physical part of the executable. When you load the executable into memory, the operating system sets aside enough memory for the entire executable and copies it, byte for byte, into that memory. So when the program is executed, the data segment is already allocated.
What do you mean by run time memory allocation?
When the allocation of memory to the program is done on need, during the execution of a program, it is called as the dynamic memory allocation. Memory is allocated from a free memory pool called as heap.The only way to access this dynamically allocated memory is through pointers. Dynamically allocated memory can be freed at run time and again added to heap.
Can we declare register variable as global?
Globals and statics are both allocated in static memory. Locals are allocated on the stack.
In object oriented programming when does memory for the class is allocated and why?
While it depends on the specific language, memory for a class is usually allocated when an object of that class is created.
