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In computing, a command prompt physical address refers to the actual memory address in the computer's hardware where data is stored, as opposed to a virtual address used by programs. The physical address is managed by the operating system and is essential for the CPU to access data in RAM. However, users typically interact with virtual addresses through the command prompt, and physical addresses are generally abstracted away for security and complexity reasons. To see physical memory addresses, specific tools or commands, depending on the operating system, may be required.
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How logical address is mapped to physical address?
In the 8086/8088, the logical address (or effective address) is mapped to a physical address by adding it to the left shifted by 4 value of a segment register. For example, is the logical address is 1234H, and the segment register's contents is 5678H, the physical address is 1234H + 56780H, or 579B4H.
Formula to get logical to physical address in paging?
(frame no * page size) + offset value = physical add where frame value is the value present in the corresponding page number offset value is the last n bits of the logical address page no is the first m-n bits of logical address 2^m is the logical address 2^n is the page size
What value is laced in the age table to redirect linear address 20000000H to physical address 300000000H?
To redirect the linear address 20000000H to the physical address 300000000H, the value that needs to be laced in the age table is the difference between the two addresses, which can be calculated as 300000000H - 20000000H = 280000000H. This value represents the offset that must be applied to the linear address to achieve the desired physical address. In a typical paging system, this value would be placed in the page table entry corresponding to the relevant page to ensure the correct translation.
How do I check if a registry value exist or not from a DOS batch file?
Get the Registry entry using regedit command. use the command from command prompt or copy that in a batch file and execute. Use errorlevel command to verify. hope this helps!! @echo off reg query RootKeyName\Path\To\Key\To\Query /v KeyName echo Does not Exist!!!!
What is a command argument?
Command line arguments are provided at the time of running the program. Example: Suppose that your program needs input name and its value then running it from commandline(DOS prompt) you provide the values after the program name java xyz name JAX(name is name and value is jax)
Which value would be considered the physical address for data that is sent across an Ethernet segment?
The MAC (Media Access Control) address.
When is the address in the instructional pointer updated?
This actually depends on the processor you are referencing; some processors update their IP (Instruction Pointer) before performing a command, and some perform it after the command. To find out if your processor is doing so before or after the command, use the instruction "mov ax,ip" in a debugger, and observe the value of ax. If ax contains the address of the mov instruction, it performs the update of IP after processing a command, while if it contains the address after the mov instruction, it performs the update before processing the command.
How do you calculate physical memory address?
Physical address's are set at factory, the first 6 characters are that of the manufacturer. The last 6 digits are unique to that product/device. This is not a calculated field.
How could you easily return PATH to its original value after deleting it accidentally?
Assuming you know what the original path was, just retype at the command prompt: PATH=... whatever you had before ... Or: log out of your session and log back in again.
What has the author Chauncey Smith written?
Chauncey Smith has written: 'Address on the commercial value of ideas and physical facts' -- subject(s): Value, Inventions
When writing prompt box by using javascript the paragraph on the body tag is replaced by the value of the prompt how to solve this?
The prompt dialogue box is used to get user feedback and change the value accordingly in the paragraph. Try and use some other popup box like confirm or alert if you do not wish to replace the value in the body paragraph
What is a correct way to write the value 0xaa55 to physical memory address 0x67a9?
To write the value 0xaa55 to the physical memory address 0x67a9, you would typically use a direct memory access method in a programming language that supports low-level memory manipulation, such as C or assembly. For example, in C, you might use a pointer: *(volatile unsigned short *)0x67a9 = 0xaa55;. This ensures that the value is written directly to the specified address in memory. Remember to ensure that you have the necessary permissions and that the memory address is valid for your system.
