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Actual location in main memory?
The actual location in main memory refers to the specific address or location where data or instructions are stored in a computer's RAM (Random Access Memory). This is determined by the memory management unit (MMU), which translates logical addresses used by programs into physical addresses in memory. The organization of this memory is crucial for efficient data retrieval and execution of processes. Accessing the correct location is essential for the system's performance and stability.
Why do we need computer RAM?
Most modern computers use Random Access Memory for their main memory. However you don't need Random Access Memory, Sequential Access Memory is perfectly adequate and has been used in many computers in the past for main memory (it just happens to be much slower to access than Random Access Memory as you need to wait for the location to come around again).
What is the difference between address and location in computing?
In computing, an address refers to a specific identifier used to access data or resources in memory, such as a memory address that points to a particular byte or word in RAM. In contrast, a location often refers to the physical or logical place where data is stored, which can be more abstract, such as a file path on a disk or a specific folder in a database. Essentially, an address is a precise point of reference, while a location provides a broader context.
What addressing mode could be used to add the contents of a memory location to the contents of accumulator A?
To add the contents of a memory location to the contents of accumulator A, the direct addressing mode can be used. In this mode, the instruction specifies the actual memory address where the operand is located. The processor retrieves the value from that memory address and adds it directly to the contents of accumulator A. This method allows for straightforward access to the operand stored in memory.
What is poiner value in c?
In c a pointer is a variable that points to or references a memory location in which data is stored. Each memory cell in the computer has an address that can be used to access that location so a pointer variable points to a memory location we can access and change the contents of this memory location via the pointer. Pointer declaration A pointer is a variable that contains the memory location of another variable. The syntax is as shown below. You start by specifying the type of data stored in the location identified by the pointer. The asterisk tells the compiler that you are creating a pointer variable. Finally you give the name of the variable. type * variable name Example: int *ptr; float *string;
If memory addresses are used by the CPU to access memory then what are io addresses used for?
To read and write to I/O
What does the acronym RAM stand for?
Random Access Memory, the temporary or "working" memory of a computer.(see the related question below)RAM stands for Random Access Memory.random access memory
How mar and mdr work?
MAR (Memory Address Register) holds the address of the memory location to be accessed or written to in the memory unit, whereas MDR (Memory Data Register) holds the actual data that is to be written to a memory location or data read from a memory location. MAR is used to specify the address, while MDR is used to temporarily store the data during memory operations.
How is cache different from primary memory?
Cache memory is a memory that is used by CPU so that the average time to access the memory is reduced. It is a smaller and faster memory that stores copies of data which is used in frequently accessed main memory locations, On the other hand, Primary memory is the main memory of the computer. The processor can easily access, store and retrieve information from the primary memory. Primary memory has two types, Random access memory and read only memory.
What does read access memory do?
I presume you mean Random Access Memory (RAM)? This is used for short term storage of program and data on computers. It's known as random access memory because the computer can access any part of the RAM (as opposed to sequential access memory which can only be accessed sequentially).
What part of the desktop computer saves memory?
A desktop saves memory in the CPU. When one wants to access information, the random access memory, or RAM, is used. The amount of memory a computer has depends on the size of the CPU.
What is the purpose and functionality of the address operator in C?
The address operator in C is denoted by the symbol "" and is used to retrieve the memory address of a variable. This allows programmers to access and manipulate the memory location of a variable directly, enabling more efficient and precise control over memory management in their programs.
