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See searches and references containing PHYSICAL ADDRESS!PHYSICAL ADDRESS
Representation of a memory address
a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus
Physical_address
Memory management feature
In computing, Physical Address Extension (PAE), sometimes referred to as Page Address Extension, is a memory management feature for the x86 architecture
Physical_Address_Extension
Family of RISC-based computer architectures
to as XN, for eXecute Never. The Large Physical Address Extension (LPAE), which extends the physical address size from 32 bits to 40 bits, was added
ARM_architecture_family
Unique identifier assigned to network interfaces
burned-in address, or as an Ethernet hardware address, hardware address, or physical address. The address can be stored in the interface hardware, such
MAC_address
Information that locates a structure
without revealing one's physical address or even having a fixed physical address. Examples are post office boxes, service addresses and poste restante (general
Address
Reference to a specific memory location
memory consists of many memory locations, each identified by a unique physical address (a specific code). The CPU or other devices can use these codes to
Memory_address
Computing concept
address space defines a range of discrete addresses, each of which may correspond to a network host, a peripheral device, a disk sector, a physical memory
Address_space
Hardware cache of a central processing unit
address is mapped into different physical addresses (homonym), which can be solved by using physical address for tagging, or by storing the address space
CPU_cache
Hardware that translates virtual addresses to physical addresses
memory, and translates the memory addresses being referenced, known as virtual memory addresses, into physical addresses in main memory. In modern systems
Memory_management_unit
64-bit extension of x86 architecture
of the address space. Larger physical address space The original implementation of the AMD64 architecture implemented 40-bit physical addresses and so
X86-64
Limitation of some 32-bit operating systems running on x86 microprocessors
physical address bits and are thus limited to 4 GiB (232 words) of memory. x86 processors prior to the Pentium Pro have 32 or fewer physical address bits;
3_GB_barrier
Processor design concept
memory addresses to physical memory addresses. It is used to reduce the time taken to access a user memory location. It can be called an address-translation
Translation_lookaside_buffer
Hardware-assisted virtualization technology
requests access to memory, the processor translates the virtual address to a physical address using a page table or translation lookaside buffer (TLB). When
Second Level Address Translation
Second_Level_Address_Translation
Data structure that maps virtual addresses with physical addresses
virtual addresses and physical addresses. Virtual addresses are used by the program executed by the accessing process, while physical addresses are used
Page_table
Router interface to connect to a network
that sends packets out of the local network. The gateway has a physical and a logical address. The gateway operates at the network layer (Layer 3) of the
Gateway_address
Configuration in computer memory
virtual addresses to physical addresses, the IOMMU maps device-visible virtual addresses (also called device addresses or memory mapped I/O addresses in this
Input–output memory management unit
Input–output_memory_management_unit
Operational mode of x86-compatible CPUs
were added to protected mode: Paging 32-bit physical and virtual address space (The 32-bit physical address space is not present on the 80386SX, and other
Protected_mode
Set of ranges of virtual addresses
maps to the address space of physical addresses in a computer's hardware memory. The range of virtual addresses usually starts at a low address and can extend
Virtual_address_space
Numerical label used to identify a network interface in an IP network
An Internet Protocol address (IP address) is a numerical label, such as 192.168.1.1 or 2001:0db8:0000:0000:0000:8a2e:0370:7334, that is assigned to a
IP_address
extends the IBM System/370 architecture to support 31-bit virtual and physical addresses, and includes a redesigned I/O architecture. In the System/360 and
IBM_System/370-XA
Computer memory addressing model
increase the memory capacity beyond the limits imposed by the processor's physical address space, but the key feature of a flat memory model is that the entire
Flat_memory_model
Address from which a CPU starts fetching instructions after a reset
segmented address FFFFh:0000h, which maps to physical address FFFF0h. The reset vector for the Intel 80286 processor is at physical address FFFFF0h (16
Reset_vector
Maximum amount of RAM accessible by a computer
to usable physical RAM may be present. An operating system may only be designed to allocate a certain amount of memory, with upper address bits reserved
RAM_limit
Topics referred to by the same term
Virtual address refers to an address identifying a virtual, i.e. non-physical, entity. For example: Virtual address space in computing Virtual address translation
Virtual address (disambiguation)
Virtual_address_(disambiguation)
Mechanism to allow software to execute a remote procedure
have different address spaces: if on the same host machine, they have distinct virtual address spaces, even though the physical address space is the same;
Remote_procedure_call
Memory addressing limitation in 32-bit computers
same address space for both physical memory and to communicate with hardware devices. Thus, installed hardware devices need some of the address space
PCI_hole
Signal in the system bus of an x86-based computer system
address bus. A microprocessor typically has a number of address lines equal to the base-two logarithm of the number of words in its physical address space
A20_line
Division of computer's primary memory into separately relocatable segments or sections
(MMU) is responsible for translating the segment and offset into a physical address, and for performing checks to make sure the translation can be done
Memory_segmentation
32-bit version of x86 architecture
Segmented addresses are mapped to 32-bit linear addresses. Demand paging 32-bit linear addresses are virtual addresses rather than physical addresses; they
IA-32
Topics referred to by the same term
hardware address / hardware address / physical address IP address or Internet Protocol address IPv6 address URL address or web address or internet address computing
Address_(disambiguation)
Address to memory outside immediate vicinity
problematic: there can be several different segment-offset address pairs pointing to one physical address. For example, in an Intel 8086, as well as in later
Far_pointer
Computer memory management scheme
that introduces a level of indirection between physical and logical addresses and allows the physical memory used by a program to be non-contiguous. This
Memory_paging
In computing, a mapped memory location
an executing program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.
Logical_address
Operating mode for x86 CPUs
virtual addresses into 52-bit physical addresses, although processor implementations can support smaller virtual-address and physical-address spaces."
Long_mode
Memory segmentation on Intel x86
instruction to yield a linear address, which is the same as physical address in this mode. For instance, the segmented address 06EFh:9234h (here the suffix
X86_memory_segmentation
Topics referred to by the same term
null morpheme 0 address arithmetic, zero address arithmetic, a computer architecture feature where assignment to a physical address space is deferred
0A
Computer architecture bit width
several 64-bit instruction sets support fewer than 64 bits of physical memory address. The term 64-bit also describes a generation of computers in which
64-bit_computing
A page address register (PAR) contains the physical addresses of pages currently held in the main memory of a computer system. PARs are used in order to
Page_address_register
Cyberattack exploiting high-speed expansion ports
can then potentially gain direct access to part or all of the physical memory address space of the computer, bypassing all OS security mechanisms and
DMA_attack
Computer memory management technique
hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory. Main storage, as
Virtual_memory
36-bit computer by Digital (1966–1983)
allows each half of a user's address space to be limited to a set section of main memory, designated by the base physical address and size. This allows the
PDP-10
VMPTRST, VMCLEAR and VMXON is a 64-bit physical address. The m64 argument to VMXON is the 64-bit physical address to a "VMXON region", which is a 4Kbyte
List of x86 virtualization instructions
List_of_x86_virtualization_instructions
Computer bus
implementation of essentially the same functionality. Over time, the physical address range of the Q-bus was expanded from 16 to 18 and then 22 bits. Block
Q-Bus
Family of instruction set architectures
address space (starting from address zero). Since the 80286, all x86 CPUs have at least 24 physical address lines, and bit 20 of the computed address
X86
Part of physical memory in a computer
896 MB, from 0xC0000000 to 0xF7FFFFFF, is directly mapped to the kernel physical address space, and the remaining 128 MB, from 0xF8000000 to 0xFFFFFFFF, is
High_memory
Label to identify a network interface of a computer or other network node
An Internet Protocol version 6 address (IPv6 address) is a numeric label that is used to identify and locate a network interface of a computer or a network
IPv6_address
Firmware for hardware initialization and OS runtime services
start at physical address FFFF0h. The 80286 starts at physical address FFFFF0h. The 80386 and later x86 processors start at physical address FFFFFFF0h
BIOS
Numeric postal code used in the US and its territories
recognize distinctions in address types. In certain circumstances where digital forms requesting a legal or physical address use autocomplete formatting
ZIP_Code
added to the contents of the base register to generate the physical address. The address is checked against the contents of the bounds register to prevent
Base_and_bounds
United States & Canadian telephone number for emergencies
the enhanced 911 system automatically pairs caller numbers with a physical address. Like other emergency numbers, dialing 911 for purposes other than
911 (emergency telephone number)
911_(emergency_telephone_number)
List of standard postal address formats
domestic mail or country for cross border mail.) Spatial information of a physical address (including building, wing, stairwell, floor and door) may be useful
Address format by country and area
Address_format_by_country_and_area
Process of turning a place name/address to coordinates
resulting address location. In reality, the physical address is distributed along the length of the segment, i.e. consider geocoding the address of a shopping
Address_geocoding
System that provides a caller's location to emergency dispatchers
computer receives information from the telephone company about the physical address (for landlines) or geographic coordinates (for wireless) of the caller
Enhanced_911
Data type which allows a program to indirectly access a particular value in memory
array or table, an operating system handle, a physical address on a storage device, or a network address such as a URL. A reference R is a value that admits
Reference_(computer_science)
Microsoft Windows application programming interface
more physical memory than it has virtual address space, even in excess of the 4 GB limit. The process of mapping an application's virtual address space
Address_Windowing_Extensions
AMD microprocessor clone
or a 16-bit bus by use of the BS16 input 32-bit physical address space, 4 Gbyte physical memory address space fetches code in four-byte units released
Am386
Computer architecture bit width
the 24-bit physical and virtual, and transitional 24-bit-virtual/26-bit physical, addressing in System/370. This enhancement allowed address spaces to
31-bit_computing
Computer memory management methodology
memory addresses used by a process from actual physical addresses, allowing separation of processes and increasing the size of the virtual address space
Memory_management
IP address that does not correspond to a single physical network interface
address (VIP address or VIPA) is an IP address that does not correspond to a single physical network interface. Uses for VIPs include network address
Virtual_IP_address
Set of memory models of the x86 CPU
logical address 7522:F139 yields the 20-bit physical address: Note that this process leads to aliasing of memory, such that any given physical address has
X86_memory_models
64-bit extension of the ARM architecture
and modes Memory translation from 48-bit virtual addresses based on the existing Large Physical Address Extension (LPAE), which was designed to be easily
AArch64
Computer architecture bit width
logical or virtual addresses can directly access at most 4 GiB of byte-addressable address space. A processor with 32-bit physical addresses can directly access
32-bit_computing
provider and geography, i.e. fixed line numbers can be ported to any physical address in Denmark. The Kingdom of Denmark also includes two autonomous regions
Telephone_numbers_in_Denmark
Computer memory architecture
is shared—i.e., the same physical address on two processors refers to the same location in memory. Distributed global address space (DGAS), is a similar
Distributed_shared_memory
In computing, an aperture is a portion of physical address space (i.e. physical memory) that is associated with a particular peripheral device or a memory
Aperture_(computer_memory)
Service that maps the names of network resources to their respective network addresses
When using a directory service, a user does not have to remember the physical address of a network resource; providing a name locates the resource. Some
Directory_service
Data transfer channel connecting parts of a computer
memory without requiring CPU intervention. An address bus is a bus that is used to specify a physical address. When a processor or DMA-enabled device needs
Bus_(computing)
Person who helps people and companies conduct direct marketing campaigns
brokers provide lists that, minimally, contain a prospect's name and physical address. Consumer Lists may include additional demographic information such
List_broker
Feature of specific microprocessor
compatibility reasons), which creates 20-bit linear addresses in the same manner as 20-bit physical addresses are created in real mode, but are subject to protected
Virtual_8086_mode
Profession that helps a disabled person function in everyday life
such as the United Kingdom, physical therapists may have the authority to prescribe medication. Physical therapy addresses illnesses or injuries that limit
Physical_therapy
South African newspaper
The History of the Daily Dispatch by Glyn Williams The newspaper's physical address is: 35 Caxton Street, East London, South Africa, 5201 List of newspapers
Daily_Dispatch
the physical memory addressing capabilities from 32 bits to 36 bits, allowing addressing to up to 64 GB of memory. Compared to the Physical Address Extension
PSE-36
First sector of partitioned PC computer disk
code expects to be loaded at physical address 0x0000:0x7C00, all the memory from physical address 0x0000:0x0501 (address 0x0000:0x0500 is the last one
Master_boot_record
Type of computer fault
CPU to read or write a specific physical memory address. Accordingly, the CPU sets this physical address on its address bus and requests all other hardware
Bus_error
16-bit microprocessor
A 20-bit external address bus provides a 1 MiB physical address space (220 = 1,048,576 x 1 byte). This address space is addressed by means of internal
Intel_8086
Hierarchical outline list of articles related to the physical sciences
Physical science is a branch of natural science that studies non-living systems, in contrast to life science. It in turn has many branches, collectively
Outline_of_physical_science
Film by Richard Eyre
another man. He has an employee illegally trace Ralph's IP address, revealing his physical address in Milan. Peter travels to Milan and follows the half-Spanish
The_Other_Man_(2008_film)
Way in which data is arranged and accessed in computer memory
boundary lets the hardware map a virtual address to a physical address by substituting the higher bits in the address, rather than doing complex arithmetic
Data_structure_alignment
Processor extension for the x86-64 line of processors
mode. This is similar to Physical Address Extension (PAE), where the third level of paging tables to allow 36-bit addressing was enabled by setting a
Intel_5-level_paging
Technology for computer networking
frame Destination address A six-byte field used to specify the destination(s) physical address. Source address Contains physical address of sending station
Token_Ring
Physical memory barrier for a process running on a 32-bit operating system
of Physical Address Extension (PAE) can overcome this barrier by extending the addresses used to represent mappings between virtual and physical memory
2_GB_limit
8-bit microprocessor
those systems. Source: The HuC6280 has a 64 KB logical address space, but a 2 MB physical address space. The HuC6280 uses a Memory Management Unit that
Hudson_Soft_HuC6280
MIPS microprocessor
virtual address for an instruction is generated and the instruction translation lookaside buffer (TLB) begins the translation of the address to a physical address
R4000
Codes used for on-board diagnostics
respond at 07E9h, 07EAh, 07EBh, etc. These are 8h higher than the physical address the module responds to. Even though the number of bytes in the returned
OBD-II_PIDs
System to identify resources on a network
Feinler suggested that domains should be based on the location of the physical address of the computer. Computers at educational institutions would have the
Domain_Name_System
Process of starting a computer
hardware reset is located at physical address FFFFFFF0h. This address is 16 bytes below the processor's uppermost physical address. The EPROM containing the
Booting
Logical subdivision of an IP network
the routing prefixes of the source address and the destination address differ. A router serves as a logical or physical boundary between the subnets. The
Subnet
Series of 16-bit minicomputers
devices and it eventually allowed a 22-bit physical address (whereas the Unibus only allows an 18-bit physical address) and block-mode operations for significantly
PDP-11
1863 speech by Abraham Lincoln
The Gettysburg Address is a dedication speech delivered by Abraham Lincoln, the 16th U.S. president, following the Battle of Gettysburg during the American
Gettysburg_Address
Person or department serving as coordinator
entity that is registered in the ARIN database, and is defined by the organization's name, its physical address, and its Points of Contact (POC). v t e
Point_of_contact
Auto-configuration mechanism used by PCI
256 MiB of physical contiguous space is "stolen" for this use (256 buses × 32 devices × 8 functions × 4 KiB = 256 MiB). The base physical address of this
PCI_configuration_space
Self-correcting computer data storage
partitions the physical space. In one style of implementation represented by Intel's IBECC and TI's RTOS processor, the physical address space is partitioned
ECC_memory
with a unique number, but it is different in that it aliases a real physical address rather than a container at a post office. RMBs are usually located
Roadside_Mail_Box
Act of sending a commercial message using email
return address and include a valid physical address, provide a one-click unsubscribe feature, and prohibit importing lists of purchased addresses that may
Email_marketing
Family of computers 1970–1990
address with a 12-bit offset within the page or a 13-bit page frame address with an 11-bit offset within the page produces a 24-bit physical address.
IBM_System/370
Constant exchange between memory and storage
that address, the process must translate the address to a physical address in a process known as virtual address translation. In effect, physical main
Thrashing_(computer_science)
American public school in North Carolina
North Carolina, United States, that opened in 1961. The school's physical address is Pikeville, North Carolina. The school is named after the 50th governor
Charles_B._Aycock_High_School
Aesthetic assessment of physical traits
Physical attractiveness is the extent to which a person's physical features are considered aesthetically pleasing or beautiful. The term often implies
Physical_attractiveness
Indian national identification number
details like his personal mobile number(s), Gmail and Yahoo addresses, physical address, date of birth, his frequent flyer number, and that he uses an
Aadhaar
Unit within the US Library of Congress
the fifth floor of the John Adams Building in Washington, D.C.; the physical address is 101 Independence Ave SE, John Adams Building, LA 5281, Washington
Federal_Research_Division
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