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What is the difference between address space and memory space?
Therefore, the address space is the set of addresses generated by programs as they reference instructions and data. The memory space holds the actual main memory locations that are directly addressable for processing.
What is the difference between memory address register and address register?
The program counter uses logical address (virtual addresses generated by the program), where as the address register uses physical addresses (actual real memory address). This is the main difference. The Memory Address Register (MAR) holds the address of the current instruction being executed.
What is the difference between registers and main memory?
The main difference between register and main memory is that a register is a small and fast storage inside the CPU that holds data temporarily while the main memory is a storage component in the computer that stores data and programs currently used by the CPU. In brief, registers are faster than the main memory.
What do you mean by address space?
In computing, an address space defines a range of discrete addresses, each of which may correspond to a network host, peripheral device, disk sector, a memory cell or other logical or physical entity.
What is the difference between physical address and logical address?
The basic difference between Logical and physical address is that Logical address is generated by CPU in perspective of a program whereas the physical address is a location that exists in the memory unit.
What is address space in CPU?
A computer’s address space is the total amount of memory that can be addressed by the computer. The term may refer to the physical memory (RAM chips) or virtual memory (disk/SSD). For example, a 32-bit computer can address 4GB of physical memory and as much as 64TB of virtual memory.
What do you mean by registers enumerate the differences between registers and cache memory?
Register are the smallest holding data elements that are built into processor itself. These are memory locations that can be directly accessible by processor….Difference between Cache Memory and Register :
| S.No. | CACHE MEMORY | REGISTER |
|---|---|---|
| 3. | It is used during reading and writing processes from the disk. | It is used to store and retrieve information from them. |
Is register a RAM?
Key Differences Between Register and Memory Computers registers are accumulator register, program counter, instruction register, address register, etc. On the other hands, memory is referred as the main memory of the computer which is RAM.
What is address space in mainframe?
The range of virtual addresses that the operating system assigns to a user or separately running program is called an address space. This is the area of contiguous virtual addresses available for executing instructions and storing data.
Where is address space stored?
The virtual address space is kept in secondary storage (disk). The virtual part of virtual memory means that the operating system maintains an image of the address space in secondary storage. Because an image of the address space is kept in secondary storage, it can be larger than the physical memory.
What is the difference between virtual address space and physical address space?
Physical addresses refer to hardware addresses of physical memory. Virtual addresses refer to the virtual store viewed by the process. only a portion of the address space that processes do use is loaded into physical memory at a time.
What is the difference between registers and registers?
Registers are the smallest data holding elements that are built into the processor itself. Registers are the memory locations that are directly accessible by the processor. The registers hold the instruction or operands that is currently being accessed by the CPU. Registers are the high-speed accessible storage elements.
What is address space (as)?
– Definition from WhatIs.com Address space is the amount of memory allocated for all possible address es for a computational entity, such as a device, a file, a server, or a networked computer. Address space may refer to a range of either physical or virtual addresses accessible to a processor or reserved for a process.
What is the difference between register and memory in computer architecture?
Key Differences Between Register and Memory The primary difference between register and memory is that register holds the data that the CPU is currently processing whereas, the memory holds the data the that will be required for processing.
What is the difference between address register and accumulator?
AR: Address Register is a 12-bit register that holds the address of a memory location. AC: Accumulator is also a 16-bit register which holds the result computed by the processor.