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sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM)
Sequential_access_memory
Computer memory concept
Sequential access is a term describing a group of elements (such as data in a memory array or a disk file or on magnetic-tape data storage) being accessed
Sequential_access
Type of computer memory
static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic
Non-volatile random-access memory
Non-volatile_random-access_memory
Method for creating, maintaining, and manipulating computer files
Indexed Sequential Access Method (ISAM) is a method for creating, maintaining, and manipulating computer files of data so that records can be retrieved
ISAM
Computer memory concept
be in the set. In computer science it is typically contrasted to sequential access which requires data to be retrieved in the order it was stored. For
Random_access
Access method to read and write datasets sequentially
Sequential access memory (SAM) Basic sequential access method (BSAM) Hierarchical sequential access method (HSAM) Basic indexed sequential access method
Queued Sequential Access Method
Queued_Sequential_Access_Method
Variant of DVD designed with random access in mind
that it can be used as a random-access memory unit rather than a sequential-access memory unit such as a magnetic tape drive. DVD-RAM works by means of phase
DVD-RAM
Tendency of a processor to access nearby memory locations in space or time
sequential matrix of rows and the requirement is to access a single column of the matrix. Efficiency of memory hierarchy use: Although random-access memory
Locality_of_reference
IBM disk file programming interface
Records are accessed based on their sequential order, that is, the order in which they were written to the file; which means that accessing a particular
Virtual_Storage_Access_Method
more compatible with the sequential access memory in computers of those times — mostly magnetic tape memory and drum memory. Use of Cracovians in astronomy
Cracovian
Action performed by computers
non-volatile memory. Magnetic storage media can be classified as either sequential access memory or random-access memory. Magnetic-core memory uses toroids
Reading_(computer)
Topics referred to by the same term
manager, a fully automatic pump control system by IDEX Corporation Sequential access memory Simple Anonymous Messaging, a protocol specification used in the
Sam
Recording of data on a magnetizable medium
classified as either sequential access memory or random access memory, although in some cases the distinction is not perfectly clear. The access time can be defined
Magnetic_storage
Computer performance metric
is that a data access is either a hit or a miss, meaning the memory only supports sequential accesses and cannot have multiple accesses occurring simultaneously
Average_memory_access_time
supporting compute kernels. Nearest neighbor memory access patterns appear in simulation, and are related to sequential or strided patterns. An algorithm may
Memory_access_pattern
Consistency model in concurrent computing
Sequential consistency is a consistency model used in the domain of concurrent computing (e.g. in distributed shared memory, distributed transactions
Sequential_consistency
Early type of computer memory
computer memory, delay-line memory was a refreshable memory, but as opposed to modern random-access memory, delay-line memory was sequential-access. Analog
Delay-line_memory
Secondary storage device
requires a proportionally long time to access a distant point in a medium. Access methods for DASD include sequential, partitioned, indexed, and direct. The
Direct-access_storage_device
Joint hierarchical database made by IBM
native z/OS access method, or OSAM, an IMS-specific method optimizing I/O for IMS access patterns, particularly benefiting from sequential access (OSAM Sequential
IBM Information Management System
IBM_Information_Management_System
Computer memory that does not lose its contents after being turned off
random access memory (RAM), meaning that when the computer is shut down, anything contained in RAM is lost. However, most forms of non-volatile memory have
Non-volatile_memory
Type of computer memory
Static random-access memory (static RAM or SRAM) is a type of random-access memory (RAM) that uses latching circuitry (flip-flop) to store each bit. SRAM
Static_random-access_memory
Rules that guarantee predictable computer memory operation
assigns the same consistency model to the memory access types. Issue vs. view-based Issue method provides sequential consistency simulation by defining the
Consistency_model
Persistent computer data storage with no moving parts
drive – a block of random-access memory that the operating system treats as if it were secondary storage Sequential access memory – a class of data storage
Solid-state_storage
Hardware cache of a central processing unit
reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which
CPU_cache
Type of computer memory
random-access memory (dynamic RAM or DRAM) is a type of random-access semiconductor memory that stores each bit of data in a memory cell. A DRAM memory cell
Dynamic_random-access_memory
Computer memory addressing model
address space, but the key feature of a flat memory model is that the entire memory space is linear, sequential and contiguous. In a simple controller, or
Flat_memory_model
When a system's behavior depends on timing of uncontrollable events
consistency with sequentially consistent special operations), VAX memory model, and data-race-free-0 memory models. The PLpc memory model provides SC
Race_condition
Property of some operation(s) in concurrent programming
that: The extended list can be re-expressed as a sequential history (is serializable). That sequential history is a subset of the original unextended list
Linearizability
Order of accesses to computer memory by a CPU
Memory ordering is the order of accesses to computer memory by a CPU. Memory ordering depends on both the order of the instructions generated by the compiler
Memory_ordering
Mathematical model describing how an output of a function is computed given an input
Pushdown automata Register machines Random-access machines Turing machines Decision tree model External memory model Functional models include: Abstract
Model_of_computation
Electronic non-volatile computer storage device
scenarios demanding cost-effective, high-capacity storage with sequential data access. Flash memory is used in computers, PDAs, digital audio players, digital
Flash_memory
APIs in IBM mainframe computer operating systems
access methods in approximate chronological order: BDAM - Basic direct access method BSAM - Basic sequential access method QSAM - Queued sequential access
Access_method
Processor design concept
the time taken to access a user memory location. It can be called an address-translation cache. It is a part of the chip's memory-management unit (MMU)
Translation_lookaside_buffer
Type of computer memory
Synchronous dynamic random-access memory (synchronous dynamic RAM or SDRAM) is any DRAM where the operation of its external pin interface is coordinated
Synchronous dynamic random-access memory
Synchronous_dynamic_random-access_memory
Executing several computations during overlapping time periods
are executed concurrently—during overlapping time periods, instead of sequentially—with one completing before the next starts. This is a property of a system—whether
Concurrent_computing
Storage of digital data readable by computers, using memory and storage devices
read-only memory, CD-R), read-only storage (e.g. mask ROM ICs, CD-ROM). Accessibility Types of access include random access and sequential access. In random
Computer_data_storage
Method of CPU communication
memory address may refer to either a portion of physical RAM or to memory and registers of the I/O device. Thus, the CPU instructions used to access the
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
same order (sequentially) - these are synchronization operations. Accesses to critical sections are seen sequentially. All other accesses may be seen
Weak_consistency
Array representation in computer memory
storage such as random access memory. The difference between the orders lies in which elements of an array are contiguous in memory. In row-major order,
Row-_and_column-major_order
Abstract model of computation
together with the pointer machine, "sequential machine" models, to distinguish them from "parallel random-access machine" models. An RA-machine consists
Random-access_machine
Data structure with nodes pointing to the next node
stored in contiguous memory locations; instead, the node holding the reference to other node's memory address is in sequential order. Linked lists allow
Linked_list
Aspect of the instruction set architecture of CPUs
addressing mode, which always fetches data from memory or stores data to memory and then sequentially falls through to execute the next instruction (the
Addressing_mode
Discontinued computer memory type
cross-grid data access array, using a technology known as Ovonic Threshold Switch (OTS). Initial prices were less than for dynamic random-access memory (DRAM)
3D_XPoint
Fixed-length contiguous block of virtual memory
this, large sequential transfers are more efficient than several smaller transfers. Transferring the same amount of data from disk to memory often requires
Page_(computer_memory)
Data structure
random I/O and leveraging sequential disk writes. When a write operation is initiated, the data is first buffered in an in-memory component, often implemented
Log-structured_merge-tree
Part of computer memory
be used later by digital systems. Logic circuits that use memory cells are called sequential circuits, meaning the output depends not only on the present
Memory_cell_(computing)
Design for testing technique for integrated circuits
scan design—i.e., the chip has sequential circuits, such as memory elements that are not part of the scan chain, sequential pattern generation is required
Scan_chain
Abstraction of parallel computer architecture
shared-memory model, parallel processes share a global address space that they read and write to asynchronously. Asynchronous concurrent access can lead
Parallel_programming_model
Dutch artist (born 1966)
Patterns are temporarily stored within a 'delay line memory', a form of sequential access memory that was used for early computing. By delaying the data
Bas_van_Koolwijk
Algorithm which can do multiple operations in a given time
Further, non-parallel, non-concurrent algorithms are often referred to as "sequential algorithms", by contrast with concurrent algorithms. Algorithms vary significantly
Parallel_algorithm
Sampler
The Prophet 2000 is a sampler keyboard manufactured by Dave Smith's Sequential Circuits (SCI) and released in 1985. It was the company's first sampler
Prophet_2000
Type of consistency in programming which is based synchronization
to clearly schedule a certain memory access in one thread to occur after another. When a synchronized variable is accessed, hardware would make sure that
Release_consistency
Inefficient use of storage space
memory being marked as allocated - which reduces the amount of globally available memory, making it harder for programs to request and access memory.
Fragmentation_(computing)
Data structure that can be used by multiple threads
differ from "sequential" data structures, intended for use on a uni-processor machine, in several ways. Most notably, in a sequential environment one
Concurrent_data_structure
Flash memory card format
write amplification due to flash memory management, controller retry operations for soft error correction and sequential vs. random write patterns. In some
SD_card
African Large Telescope Strategic Arms Limitation Talks SAM (a) Sequential-Access Memory Sociedad Aeronáutica de Medellín Surface-to-Air Missile Sambo –
List_of_acronyms:_S
Input/output performance measurement
including the balance of read and write operations, the mix of sequential and random access patterns, the number of worker threads and queue depth, as well
IOPS
Abstract computer for designing parallel algorithms
to the random-access machine (RAM) (not to be confused with random-access memory). In the same way that the RAM is used by sequential-algorithm designers
Parallel_RAM
Tree-based computer data structure
tree data structure that maintains sorted data and allows searches, sequential access, insertions, and deletions in logarithmic time. The B-tree generalizes
B-tree
AI's tendency to abruptly and drastically forget old info after learning new info
learning was sequential but not concurrent Ratcliff (1990) used multiple sets of backpropagation models applied to standard recognition memory procedures
Catastrophic_interference
Computer memory module
between accesses. By interleaving the memory (e.g. cells 0, 4, 8, ... are stored in one rank, cells 1, 5, 9, ... in another rank, and so on), sequential memory
DIMM
Computer filing system
This permits multiple users (or processes) access to various data on the disk without regard to the sequential location of the data. Examples include FAT
File_system
Remembered information in a computer system
of a sequential circuit or computer program at any time is completely determined by its current inputs and current state. Since each binary memory element
State_(computer_science)
Algorithm for caching data
or often-used data items in memory locations which are faster, or computationally cheaper to access, than normal memory stores. When the cache is full
Cache_replacement_policies
Divide and conquer sorting algorithm
sorted can only be efficiently accessed sequentially, and is thus popular in languages such as Lisp, where sequentially accessed data structures are very common
Merge_sort
Computer memory management scheme
entire segment would be "swapped out" (or "rolled out") from Random-access memory (RAM) to disk or drum, and another one would be swapped in (or rolled
Memory_paging
Compiler transformation of sequential programs for parallel execution
distinct accesses can interfere. If a compiler cannot establish that memory references are independent, it may need to preserve their sequential ordering
Automatic_parallelization
System-on-a-chip designed by Apple Inc.
units (ALUs). Each LPDDR5-6400 memory controller contains a 16-bit memory channel and can access up to 8 GiB of memory. Apple silicon GoFetch – security
Apple_M3
Computer memory architecture
which each node of a cluster has access to shared memory in addition to each node's private (i.e., not shared) memory. DSM can be achieved via software
Distributed_shared_memory
attribute, which deviates from the sequential memory access inherent to standard Turing machines, allows RATMs to access any memory cell in a consistent and time-efficient
Random-access_Turing_machine
Additional storage that enables faster access to main storage
For this reason, a read miss in a write-back cache may require two memory accesses to the backing store: one to write back the dirty data, and one to
Cache_(computing)
Computer storage device with no moving parts
These drives use both flash memory and spinning magnetic disks in order to improve the performance of frequently accessed data. Traditional interfaces
Solid-state_drive
graphics card memory. This often increases the speed of image write operations by several times, at the cost of losing the simple sequential read/write semantics
Memory_type_range_register
Assembler for the IBM 650 computer
array of instructions the memory appears to be a linked list. SOAP optimizes by placing instructions to be executed sequentially in locations around the
Symbolic Optimal Assembly Program
Symbolic_Optimal_Assembly_Program
Core of a computer operating system
of the kernel is usually loaded into a separate area of memory, which is protected from access by application software or other less critical parts of
Kernel_(operating_system)
Cognitive system for temporarily holding information
working memory. Other suggested names were short-term memory, primary memory, immediate memory, operant memory, and provisional memory. Short-term memory is
Working_memory
2015 password-based key derivation function
variants differ in how they access this memory: Argon2d maximizes resistance to GPU cracking attacks. It accesses the memory array in a password-dependent
Argon2
Abstract machine used in a formal logic and theoretical computer science
computational system in relation to memory accesses. By modeling computations in relation to the memory accesses for each respective computational step
Counter_machine
RISC processor architecture
fetch the instruction from memory into the Instruction Register (IR); increment the PC by 4 to address the next sequential instruction. The IR is used
DLX
Disk caching component of Microsoft Windows
random access, and slower than mechanical hard disks for sequential access. Gaining the benefit of caching implies that ReadyBoost will access the flash
ReadyBoost
Mode of data transmission
transaction can be typically written as a sum of initial access latency plus sequential access latency. t t o t a l = t i n i t i a l + t s e q u e n
Burst_mode_(computing)
Selective restriction of access
Many access control credentials use unique serial numbers programmed in sequential order during manufacturing. In a method known as a "sequential attack"
Access_control
Register in a computer's CPU
immediate access storage. It was first implemented in von Neumann model. It contains a copy of the value in the memory location specified by the memory address
Memory_buffer_register
Multithreaded to allow concurrent access
control restricting contending accesses. The resulting overhead causes worse performance than that of the ideal sequential version. In spite of this, concurrent
Concurrent_hash_table
Programming paradigm in which many processes are executed simultaneously
processor and in multi-core processors each core is independent and can access the same memory concurrently. Multi-core processors have brought parallel computing
Parallel_computing
Form of non-volatile memory used in computers and other electronic devices
usually flash memory) and RAM. ROM and RAM are essential components of a computer, each serving distinct roles. RAM, or random access memory, is a temporary
Read-only_memory
Mutual exclusion algorithm
via shared memory. The solution was attributed to Dutch mathematician Th. J. Dekker by Edsger W. Dijkstra in an unpublished paper on sequential process descriptions
Dekker's_algorithm
Memory-hard key derivation function
Stuart (2016-01-11). "Balloon Hashing: A Memory-Hard Function Providing Provable Protection Against Sequential Attacks". Cryptology ePrint Archive. 2016
Balloon_hashing
Algorithm that arranges lists in order
designed for sequential access, the highest-performing algorithms assume data is stored in a data structure which allows random access. From the beginning
Sorting_algorithm
Computing technique
prefetching identifies long sequences of contiguous memory accesses (sequential access to a block of memory) Correlation prefetching learns patterns between cache
Prefetching
Equivalence of all cached copies of a memory location
definition of sequential consistency memory model: "the cache coherent system must appear to execute all threads’ loads and stores to a single memory location
Cache_coherence
Computer processor technique
Memory dependence prediction is a technique, employed by high-performance out-of-order execution microprocessors that execute memory access operations
Memory_dependence_prediction
cache A small and fast buffer memory between the CPU and the main memory. Reduces access time for frequently accessed items (instructions / operands)
Glossary of computer hardware terms
Glossary_of_computer_hardware_terms
Data recovery technique
computers' volatile memory (i.e. RAM) can be carved. Memory-dump carving is routinely used in digital forensics, allowing investigators to access ephemeral evidence
File_carving
High-end IBM computer model from 1960s
four-way (I75, J75) interleaving of memory access. Even with only two-way interleaving, "an effective sequential access rate of 400 nanoseconds per double
IBM_System/360_Model_75
Types of accurate and detailed recall
This is a technique that involves grouping items together to improve sequential memory by having each item in mind generate a complete series of items. Many
Exceptional_memory
Rule of thumb in computing
issued a counterpart one-minute rule for sequential access: The 1-minute rule: cache sequentially accessed disk pages that are re-used every 1 minute
Five-minute_rule
Magnetic tape used for storing video and sound simultaneously
data in two dimensions. Tape is a sequential access method of storing information and thus imposes delays to access a portion of the tape that is not
Videotape
Recollection of events triggered by musical stimulus
specifically designed to model sequential data and are well-suited for analyzing the temporal aspects of music and memory. Researchers use RNNs to capture
Music-evoked autobiographical memory
Music-evoked_autobiographical_memory
Abstract data type
the stack, but accessing a datum deeper in the stack typically requires removing multiple other items first. Considered a sequential collection, a stack
Stack_(abstract_data_type)
travel, tourism, insurance
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
Surname or Lastname
English
English : variant spelling of Annis.
Boy/Male
Latin
A Roman poet.
Girl/Female
Tamil
Yaswitha | யாஸà¯à®µà¯€à®¤à®¾, யஷà¯à®µà¯€à®¤à®¾
Success
Yaswitha | யாஸà¯à®µà¯€à®¤à®¾, யஷà¯à®µà¯€à®¤à®¾
Boy/Male
Indian
Success
Boy/Male
Tamil
Success
Surname or Lastname
English
English : variant of Carras.
Girl/Female
German
Noble; Kind
Boy/Male
Tamil
Success
Girl/Female
Greek Latin
Chaste.
Surname or Lastname
English and Irish
English and Irish : variant spelling of Akers.
Surname or Lastname
English
English : variant of Akers.Altered form of Acker.
Boy/Male
American, Australian, British, English
Camp of the Soldiers
Girl/Female
Australian, French
Tender Touch; Beloved
Girl/Female
Australian, Greek
Chaste; Pure
Surname or Lastname
English (Gloucestershire)
English (Gloucestershire) : unexplained.
Girl/Female
Tamil
Sasvika | ஸஸà¯à®µà¯€à®•à®¾
Success
Sasvika | ஸஸà¯à®µà¯€à®•à®¾
Male
Egyptian
, lord, prince?
Girl/Female
Tamil
Yashwitha | யாஸà¯à®µà¯€à®¤à®¾, யஷà¯à®µà¯€à®¤à®¾
Success
Yashwitha | யாஸà¯à®µà¯€à®¤à®¾, யஷà¯à®µà¯€à®¤à®¾
Girl/Female
French
Tender touch.
Surname or Lastname
English
English : variant of Harness.
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
SEQUENTIAL ACCESS-MEMORY
v. t.
To pronounce with an accent or with accents.
n.
The rhythmical accent, which marks phrases and sections of a period.
adv.
From side to side; crosswise; as, with arms folded across.
n.
The means, place, or way by which a thing may be approached; passage way; as, the access is by a neck of land.
n.
A second access or approach; a return.
a.
Comprising sentences; as, a sentential translation.
n.
A withdrawing or retiring; a moving back; retreat; as, the recess of the tides.
v. t.
To make a recess in; as, to recess a wall.
a.
Succeeding or following in order.
n.
Increase by something added; addition; as, an access of territory. [In this sense accession is more generally used.]
a.
Comprising or representing sentences; sentential.
adv.
In a sentential manner.
n.
A coming to, or near approach; admittance; admission; accessibility; as, to gain access to a prince.
v. t.
To express the accent of (either by the voice or by a mark); to utter or to mark with accent.
v. t.
To rate; to tax; to assess.
n.
Access; admittance.
a.
Of or pertaining to a sentence, or full period; as, a sentential pause.
n.
A paroxysm; a fit of passion; an outburst; as, an access of fury.
n.
Modulation of the voice in speaking; manner of speaking or pronouncing; peculiar or characteristic modification of the voice; tone; as, a foreign accent; a French or a German accent.
n.
A mark or character used in writing, and serving to regulate the pronunciation; esp.: (a) a mark to indicate the nature and place of the spoken accent; (b) a mark to indicate the quality of sound of the vowel marked; as, the French accents.
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