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Data structure in computer science
computer science, a circular buffer, circular queue, cyclic buffer or ring buffer is a data structure that uses a single, fixed-size buffer as if it were connected
Circular_buffer
Computer hardware
extension forces instructions to be committed in-order. The buffer is a circular buffer (to provide a FIFO instruction ordering queue) implemented as
Re-order_buffer
Memory used temporarily in data transfers
computer. Buffer overflow Buffer underrun Circular buffer Disk buffer Streaming media Frame buffer for use in graphical display Double buffering and Triple
Data_buffer
Structure of file system that writes all information to a circular buffer
file system in which data and metadata are written sequentially to a circular buffer, called a log. The design was first proposed by John K. Ousterhout
Log-structured_file_system
Part of the coupling system used in some railway systems
A buffer is a part of the buffers and chain coupler system used on the railway systems of many countries, among them most of those in Europe, for attaching
Buffer_(rail_transport)
Family of computing problems
monitor is an object that contains variables buffer, head, tail and count to realize a circular buffer, the condition variables nonempty and nonfull
Producer–consumer_problem
Data structure used in text editors
gap buffer where the gap is always at the end Zipper (data structure), conceptually a generalization of the gap buffer. Linked list Circular buffer Rope
Gap_buffer
Synchronous serial communication interface
register for serial communication, which together forms an inter-chip circular buffer. To support multidrop bus, slave devices should use tri-state outputs
Serial_Peripheral_Interface
Computer memory unit using cascaded flip-flops
Serial Peripheral Interface Bus Shift register lookup table (SRL) Circular buffer US4530107A, Williams, Marshall, "Shift register delay circuit", issued
Shift_register
Combinational digital circuit
used to shift unsigned integers. Rotate: the operand is treated as a circular buffer of bits in which its least and most significant bits are effectively
Arithmetic_logic_unit
Type of statistical measure over subsets of a dataset
time data with a FIFO / circular buffer and only 3 arithmetic steps. During the initial filling of the FIFO / circular buffer the sampling window is equal
Moving_average
resident memory. The Branch Trace Store can be also configured to be a circular buffer, so that last executed branches are recorded. Branch tracing on Intel
Branch_trace
Scheduling algorithm, the first piece of data inserted into a queue is processed first
have incompatible data rates. Software FIFOs typically are based on a circular buffer or list structure. Most software implementations are not thread safe
FIFO (computing and electronics)
FIFO_(computing_and_electronics)
Data organization and storage formats
array Bit array Bit field Bitboard Bitmap Circular buffer Control table Image Dope vector Dynamic array Gap buffer Hashed array tree Lookup table Matrix Parallel
List_of_data_structures
Abstract data type
object-oriented languages as classes. A queue may be implemented as circular buffers and linked lists, or by using both the stack pointer and the base pointer
Queue_(abstract_data_type)
Computation modulo a fixed integer
non-linear modular arithmetic equations is NP-complete. Boolean ring Circular buffer Division (mathematics) Finite field Legendre symbol Modular exponentiation
Modular_arithmetic
overflow conditions. Buffer (telecommunication) Circular buffer This article incorporates public domain material from "variable length buffer". Federal Standard
Variable-length_buffer
Linux kernel interface for storage devices
operations on data accessed by file descriptors. It works by creating two circular buffers, called "queue rings", to track the submission and completion of I/O
Io_uring
Abstract data type
out unauthorized operations. This type of attack is a variation on the buffer overflow attack and is an extremely frequent source of security breaches
Stack_(abstract_data_type)
Technology for recording broadcast quality video to hard disk
than real time transfer of footage and the RetroLoop, which used a circular buffer to constantly record footage, and allowed saving a "take" after the
CamCutter
Family of lossless data compression algorithms
Both the LZ77 and LZ78 algorithms work on this principle. In LZ77, a circular buffer called the "sliding window" holds the last N bytes of data processed
Dictionary_coder
Data logging and graphing system for time series data
network bandwidth, temperatures, and CPU load. The data is stored in a circular buffer-based database, thus the system storage footprint remains constant
RRDtool
Dichroism with circularly polarized light
Circular dichroism (CD) is dichroism involving circularly polarized light, i.e., the differential absorption of left- and right-handed light. Left-hand
Circular_dichroism
Journaling file system for IRIX and Linux
journal before the actual disk blocks are updated. The journal is a circular buffer of disk blocks that is not read in normal file system operation. The
XFS
Free Unix-like operating system kernel
messages in a circular buffer (overwriting older entries with newer). The syslog(2) system call provides for reading and clearing the message buffer and for
Linux_kernel
Overview of and topical guide to algorithms
(abstract data type) Queue (abstract data type) Deque Priority queue Circular buffer Tree (data structure) Binary tree Binary search tree AVL tree Red–black
Outline_of_algorithms
usually provided to allow for status latency. A FIFO is implemented as a circular buffer that employs two memory address registers (MARs) to store the addresses
FIFO_(electronic)
Quickly accessible working storage available as part of a digital processor
collection of storage registers located on separate chips from the CPU: Memory buffer register (MBR), also known as memory data register (MDR) Memory address
Processor_register
Obsolete Microsoft Windows audio APIs
with the RTAudio codec) protocol is introduced, based on a single circular buffer. RT Audio protocol is implemented by WaveRT port driver in portcls
Windows legacy audio components
Windows_legacy_audio_components
Field of electrical engineering
and addition. Other typical operations supported by the hardware are circular buffers and lookup tables. Examples of algorithms are the fast Fourier transform
Signal_processing
Vehicle safety device
occupancy sensors. Oftentimes, ACUs log this—and other—sensor data in a circular buffer and record it to onboard non-volatile memory, to provide a snapshot
Airbag
Hybrid RISC digital signal processor
the compiler or programmer. Two nested zero-overhead loops and four circular buffer DAGs (data address generators) are designed to assist in writing efficient
Blackfin
Video codec by Apple Inc
an entry in the palette cache. The palette cache is a set of three circular buffers which store the 256 most recently used palettes, one each for of the
QuickTime_Graphics
Specialized microprocessor optimized for digital signal processing
processes, which increases latency. Hardware modulo addressing Allows circular buffers to be implemented without having to test for wrapping Bit-reversed
Digital_signal_processor
Stack-based programming language
custom defining behavior and instance behavior. Some examples include circular buffers, named bits on an I/O port, and automatically indexed arrays. Data
Forth_(programming_language)
Linux file system
log-structured file system, in that the storage medium is treated like a circular buffer and new blocks are always written to the end.[…]Log-structured file
NILFS
Computer science concept
can exist. For instance, a similar problem can occur with persistent circular buffers. NOVA (filesystem) or "non-volatile memory accelerated", an open-source
Persistent_memory
Mechanism for connecting rolling stock in a train
a necessity. The earliest 'dumb buffers' were fixed extensions of the wooden wagon frames, but later spring buffers were introduced. The first of these
Railway_coupling
Floor cleaning device
requiring two-handed steering by beginners, a floor buffer uses one or more variable-speed circular rotary brushes to dislodge dirt and dust from and apply
Floor_scrubber
Method for separation and analysis of biomolecules using agarose gel
agarose gels used are between 0.7–2% dissolved in a suitable electrophoresis buffer. Agarose gel is a three-dimensional matrix formed of helical agarose molecules
Agarose_gel_electrophoresis
Data structure with nodes pointing to the next node
A circularly linked list may be a natural option to represent arrays that are naturally circular, e.g. the corners of a polygon, a pool of buffers that
Linked_list
Disk-scheduling algorithm
same direction. From an implementation perspective, the drive maintains a buffer of pending read/write requests, along with the associated cylinder number
Elevator_algorithm
Real-time operating system
communications items implemented by events and queues available as circular buffers, memory management by memory pool that allocates memory only in fixed-size
DioneOS
System of measuring the instability of a protein under varying conditions
done under varying conditions, such as variations in drug concentration, buffer formulation (pH or ionic strength), redox potential, or sequence mutation
Thermal_shift_assay
Vibrating device for orienting small parts
handle irregular supplies of parts from upstream equipment, creating a buffer store and smooth flow for further processes. Special application: multi-track
Bowl_feeder
Stream cipher
and many digital signal processors), these can be implemented as circular buffers. In software, these are most easily implemented as large arrays. When
Py_(cipher)
Tool for digital signal processing
of a weighted overlap add (WOLA) filter bank. Wrap-around of a circular input buffer is used to offset phase discontinuities, caused by lack of a true
Filter_bank
Megalithic tombs in Japan
in many shapes and dimensions in varying patterns. Some are of simple circular or square shape (empun and hōfun). The larger ones are keyhole-shaped (zempō
Mozu_Kofun_Group
Flying tree trimmer
order for one of these saws to be used in a residential area, a safety buffer must be in place prior to work.[citation needed] The operation must be monitored
Aerial_saw
Reservoir in Cornwall, England
the lake holds over 3 billion litres of water. The reservoir is used to buffer the water levels in the River Fowey in the summer. The water is collected
Siblyback_Lake
Benefits provided by intact ecosystems
nearby, or even on the farm itself. Coastal and estuarine ecosystems act as buffer zones against natural hazards and environmental disturbances, such as floods
Ecosystem_service
Type of genomic structure
Extrachromosomal circular DNA (eccDNA) is a type of double-stranded circular DNA structure that was first discovered in 1964 by Alix Bassel and Yasuo
Extrachromosomal_circular_DNA
Method for separation and analysis of biomolecules
gels may melt during electrophoresis. Electrophoresis is performed in buffer solutions to reduce pH changes due to the electric field, which is important
Gel_electrophoresis
UNESCO World Heritage Site in Patan, India
stepwell is divided into seven levels of stairs, which lead down to a deep, circular well. A stepped corridor is compartmentalized at regular intervals with
Rani_ki_Vav
1954 U.S. thermonuclear weapon test in the Marshall Islands
to unacceptably large radiation losses—the stand-off gap also acted as a buffer to mitigate the unavoidable and undesirable Taylor mixing. Boron was used
Castle_Bravo
United States historic place
it, the section to the south is primarily hilly parkland. The park is a buffer between the developed commercial areas at the south end of downtown Saratoga
Canfield Casino and Congress Park
Canfield_Casino_and_Congress_Park
Part of an optical fiber that carries light
(single-mode) 50 μm diameter (multi-mode) 62.5 μm diameter (multi-mode) Buffer (optical fiber) Insulation/circuits. Lake Publishing Corporation. 1978.
Core_(optical_fiber)
Class of diesel electric locomotives
side. British Rail required yellow on the ends below the window and on the buffer beam; above this was silver; the bottom blue line was carried around the
British_Rail_Class_59
Swiss battle rifle of 1957
and winter trigger Simplified bolt carrier with add-on, unified rubber buffer and charging handle lug The SG 510-4 is officially classed as an automatic
SIG_SG_510
meaning buffers exist between stations where parts wait to be processed. Not all transfer lines must geometrically be straight lines, for example circular solutions
Transfer_line
Data flow control switching method
control allocates buffers and channel bandwidth on a packet level, while wormhole flow control does this on the flit level. In case of circular dependency,
Wormhole_switching
Timekeeping device that is driven by a spring that winds by motion of the wearer
winding mechanism. The motion of the watch is thereby translated into circular motion of the weight which, through a series of reverser and reducing gears
Automatic_watch
Computer graphics effect
floating-point frame buffers, in order to produce HDR images. To produce the bloom effect, the linear HDRR image in the frame buffer is convolved with a
Bloom_(shader_effect)
DNA located in mitochondria
to have separate evolutionary origins, with the mtDNA derived from the circular genomes of bacteria engulfed by the ancestors of modern eukaryotic cells
Mitochondrial_DNA
Flexible passageway between train cars
E351 series British Rail Class 150 UAC TurboTrain power car Anticlimber Buffers and chain coupler Janney coupler Railway coupling SA3 coupler Tightlock
Gangway_connection
Mass extinction event about 66 million years ago
S2CID 129654916. Sheehan, Peter M.; Hansen, Thor A. (1986). "Detritus feeding as a buffer to extinction at the end of the Cretaceous" (PDF). Geology. 14 (10): 868–870
Cretaceous–Paleogene extinction event
Cretaceous–Paleogene_extinction_event
Road junction in London
a short siding and after demolishing the buffer stop they ran down the embankment on to the North Circular Road, although nobody was hurt. The second
Staples_Corner
Method in signal processing
{\text{DFT}}_{N}\displaystyle (h[n+M-1-N]),} meaning that the N-length buffer is circularly-shifted (rotated) by M-1 samples. Thus the h(M) element is at n=1
Overlap–save_method
Computer memory management methodology
operations cannot overflow or underflow the referenced block (commonly known as buffer overflow). Descriptors themselves are protected control words that cannot
Memory_management
Social media platform owned by Meta
Retrieved September 9, 2025. "Instagram Reels Length: How Long Can Reels Be?". Buffer: All-you-need social media toolkit for small businesses. Archived from the
Archaeological complex in Tivoli, Italy
1999. The designation specified the boundaries of the site and created a buffer zone around it in which no new construction was permitted. In 2011, the
Hadrian's_Villa
UN environmental response agency
development of solar loan programmes, with attractive return rates, to buffer the initial deployment costs and entice consumers to consider and purchase
United Nations Environment Programme
United_Nations_Environment_Programme
Theater in Greece, Epidaurus
better viewing. The circular orchestra, with a diameter of 20 m, constitutes the centre of the theatre. In the centre is a circular stone plate, the base
Ancient_Theatre_of_Epidaurus
Non-comparative lexicographical sorting algorithm
but requires the use of a memory buffer of the same size as the input array. This extra memory allows the input buffer to be scanned from the first array
Radix_sort
Road testing device
dropping a large weight onto a "buffer" which shapes the pulse, and then transmitted to the pavement through a circular load plate. Data are acquired from
Falling_weight_deflectometer
Lithography using 13.5 nm UV light
plasma, in the source free of tin deposition. Specifically, the hydrogen buffer gas in the EUV source chamber or vessel decelerates or possibly pushes back
Extreme ultraviolet lithography
Extreme_ultraviolet_lithography
DNA synthesis technique
reaction: A DNA polymerase A suitable buffer that is compatible with the polymerase. A short DNA or RNA primer A circular DNA template Deoxynucleotide triphosphates
Rolling_circle_replication
Wetlands in India as per Ramsar list
water shortages in the surrounding area, the site now also serves as a buffer against floodwaters and as a biodiversity hotspot. With 536 species recorded
List_of_Ramsar_sites_in_India
Topics referred to by the same term
in industry Smoking pipe Tobacco pipe Half-pipe and quarter pipe, semi-circular ramps for performing skateboarding/snowboarding tricks Piping (sewing)
Pipe
Highest mountain in San Marino
1245 criteria iii, the two together encompass an area of 55 ha with a buffer zone of 167 ha. It encompasses Mount Titano and the other structures such
Monte_Titano
Marine invertebrates of the subphylum Anthozoa
city. Healthy coral reefs absorb 97 percent of a wave's energy, which buffers shorelines from currents, waves, and storms, helping to prevent loss of
Coral
the Type "AN" (Army-Navy) series set the standard for modern military circular connectors. These connectors, and their evolutionary derivatives, are often
U.S. Military connector specifications
U.S._Military_connector_specifications
Financial Holding Companies (Approval etc.) and Capital Requirements (Capital Buffers and Macro-prudential Measures) (Amendment) (EU Exit) Regulations 2020 1407
List of statutory instruments of the United Kingdom, 2020
List_of_statutory_instruments_of_the_United_Kingdom,_2020
Activation of tension-generating sites in muscle
through numerous pathways. Relaxation is quickly achieved through a Ca2+ buffer with various cytoplasmic proteins binding to Ca2+ with very high affinity
Muscle_contraction
Cape in southern Morocco
south of internationally recognized Morocco, and makes up a semi-desert buffer zone between Morocco proper at the Draa River and Western Sahara. The strip
Cape_Juby
London UK vehicle charging zone
2021, Khan extended the zone to cover the area within the North Circular and South Circular roads. In 2023 it was further extended to all of Greater London
Ultra_Low_Emission_Zone
Android smartphone model
Pro models also gain "Pixelsnap", a Google-branded feature that adds a circular magnet array to the back of the phone to align cases, wallets, phone mounts
Pixel_10_Pro
Two-photon circular dichroism (TPCD), the nonlinear counterpart of electronic circular dichroism (ECD), is defined as the differences between the two-photon
Two-photon_circular_dichroism
Informal group of reptiles
be beneficial in the short term for lizards as it allows the ability to buffer environmental variation and endure climate warming. In high altitudes, the
Lizard
Town in Maharashtra, India
The northeastern border of the buffer zone is 50 m from the sea near Malvan port, while on the east it is a semi-circular sandy beach 500 m parallel to
Malvan
Algorithm employed by process and network schedulers in computing
as time quanta) are assigned to each process in equal portions and in circular order, handling all processes without priority (also known as cyclic executive)
Round-robin_scheduling
Failed suspension bridge in Washington, US
reducing the oscillations. Finally, the structure was equipped with hydraulic buffers installed between the towers and the floor system of the deck to damp longitudinal
Tacoma_Narrows_Bridge_(1940)
English peer, investment banker and philanthropist (1936–2024)
February 2010. Retrieved 10 December 2011. "Rothschild to act as BSkyB buffer". The Guardian. 3 November 2003. Archived from the original on 2 April 2022
Jacob Rothschild, 4th Baron Rothschild
Jacob_Rothschild,_4th_Baron_Rothschild
Silver cauldron from Denmark dating to 200 BC to 300 AD
E Boar-helmeted figure Detail The carnyx players Bronze 4th-century BC buffer-type Celtic torc from France Carnyx head from the Tintignac group Torrs
Gundestrup_cauldron
Archaeological site in Iraq
region controlled from Hatra was the Kingdom of Hatra, a semi-autonomous buffer kingdom on the western limits of the Parthian Empire, governed by Arabian
Hatra
Cultivation of plants and animals to produce foods, fibers, fuels, and raw materials
Terraces, conservation tillage and conservation buffers reduce soil erosion and water pollution on this farm in Iowa.
Agriculture
Syrian territory occupied by Israel since 1967
entered and took control of the United Nations‑monitored demilitarized buffer zone on the Syrian-controlled side of the Golan Heights. The earliest evidence
Golan_Heights
Railway system in South Korea
people. On 23 March 2025, a Line 2 train derailed after colliding with a buffer while departing from a depot at Sindorim Station. No injuries were reported
Seoul_Metropolitan_Subway
Iron Age culture in central Italy
necropolises were arranged in a circular pattern around the perimeter of the town, perhaps—according to Fulminante—forming a sort of "buffer zone" between the settlement
Latial_culture
London. Retrieved 28 July 2020. "1991: One dead as train crashes into buffers". BBC News. 8 January 1991. Archived from the original on 8 January 2008
Timeline of London (20th century)
Timeline_of_London_(20th_century)
CIRCULAR BUFFER
CIRCULAR BUFFER
Boy/Male
Hindu
Lord vishnus weapon, Circular
Boy/Male
Indian, Sanskrit
Circular; Resembles a Wheel
Boy/Male
Indian, Sanskrit
Circular; Resembles a Wheel
Boy/Male
Tamil
Lord vishnus weapon, Circular
Surname or Lastname
English (Essex, Cambridgeshire)
English (Essex, Cambridgeshire) : possibly a variant of Trendall, a topographic name for someone who lived by a well, earhwork, stone circle, or other circular feature, from Middle English trendel, trandle ‘circle’ (Old English trendel).Possibly an altered spelling of South German Tröndle, a variant of Trendle, a nickname for a tearful person, from Träne ‘tear’ + the diminutive suffix -l.
Surname or Lastname
English
English : habitational name from Turnham in East Yorkshire or Turnham Green in West London, both of which are so named from an Old English trun ‘circular’, probably denoting a U-shaped bend in a river, + hamm ‘water meadow’ or hÄm ‘homestead’.
CIRCULAR BUFFER
CIRCULAR BUFFER
Boy/Male
Indian, Sanskrit
United
Boy/Male
Arabic, Muslim
One who Releases Another from Straitened Circumstances; An Epithet of Allah
Boy/Male
Tamil
Soft natured
Girl/Female
American, British, English
Strong and Womanly; Blend of Deanne and Variants of Andrea and Sandra; Protector of Man
Surname or Lastname
English (Merseyside and Cheshire)
English (Merseyside and Cheshire) : probably a habitational name from a place in Cheshire named Big Low in the township of Rainbow. This place name is not on early record; it means ‘big mound’, from early Modern English big + low ‘mound’, ‘hill’ (Old English hlÄw).
Girl/Female
American, Australian, British, English, French
Juniper; Phonetic Variant of Genevieve; Of the Race of Women
Boy/Male
Norse
A mythical dwarf.
Girl/Female
Indian
Capability
Girl/Female
Tamil
Made, Gold
Girl/Female
Spanish American
Beautiful.
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
n.
A small circular saw.
n.
A circular projecting portion.
a.
Spherical; orbicular; orblike; circular.
n.
A circular dance.
adv.
In a circular manner.
a.
In the form of, or bounded by, a circle; round.
v. i.
To move circularly; to form a circle; to circulate.
a.
Perfect; complete.
a.
A sleeveless cloak, cut in circular form.
a.
Adhering to a fixed circle of legends; cyclic; hence, mean; inferior. See Cyclic poets, under Cyclic.
v. t.
To cause to pass from place to place, or from person to person; to spread; as, to circulate a report; to circulate bills of credit.
a.
repeating itself; ending in itself; reverting to the point of beginning; hence, illogical; inconclusive; as, circular reasoning.
a.
Circular; illogical.
a.
Nearly circular.
a.
Round; circular; spherical.
n.
Circular motion in a direction contrary to some other circular motion.
n.
The quality or state of being circular; a circular form.
a.
Circular; suitable to rotation.
a.
A circular letter, or paper, usually printed, copies of which are addressed or given to various persons; as, a business circular.
a.
Addressed to a circle, or to a number of persons having a common interest; circulated, or intended for circulation; as, a circular letter.