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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
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
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
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
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
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
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)
overflow conditions. Buffer (telecommunication) Circular buffer This article incorporates public domain material from "variable length buffer". Federal Standard
Variable-length_buffer
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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)
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
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
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
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
that require significantly less hardware logic. Similarly, addressing circular buffers or memories whose size is a power of two can be simplified into selecting
Hardware/software_co-design
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
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
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
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
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
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
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
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)
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
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
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
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
Cycle through all length-k sequences
is alphabet = k k = len(k) buffer = [0] * n sequence = [] # Recursive method to iterate through Lyndon words in the buffer. def generate(word_len, period):
De_Bruijn_sequence
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
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
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)
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
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
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
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
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
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
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
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
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
UN awareness effort to protect the environment
this action. It is time to accelerate this action and transition to a circular economy. World Environment Day 2024 focused on land restoration, desertification
World_Environment_Day
Solving physical puzzles with speed
A cycle of piece swaps is then used with the letter E being used as a buffer location for corners and D commonly being used for edges in the Old Pochmann
Speedcubing
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
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
Timekeeping device that is driven by a spring that winds by motion of the wearer
invented by John Harwood in 1923. It uses an oscillating weighted arm with two buffer springs. The wearer's movement causes the oscilllating arm to bump a ratchet
Automatic_watch
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
Island (natural or artificial) made of floating plants, mud, and peat
nature; help improve water quality, including reducing phosphorus levels; and buffer habitats against surges in nutrients and pollution. Buoyancy in artificial
Floating_island
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
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
Super-Earth exoplanet orbiting Kepler-452
in turn, would be accompanied by the carbonate–silicate cycle being "buffered", extending its lifetime due to increased volcanic activity on Kepler-452b
Kepler-452b
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
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
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
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
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
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
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
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
Protein family
only one negative band was observed on the CD spectrum. Adding phosphate buffer to mastoparan resulted in no effect.[citation needed] Melittin produced
Mastoparan
Idea that everyone faces consequence as they deserve
that such beliefs could be a personal resource or coping strategy that buffers stress associated with daily life and with traumatic events. This hypothesis
Just-world_fallacy
19th-century Anglo-Russian confrontation
Afghanistan, and support the Ottoman Empire, Persia, Khiva, and Bukhara as buffer states against Russian expansion. This would protect India and key British
Great_Game
Historic fort in Rajasthan, India
in ruins) within its precincts. The 305-hectare component site, with a buffer zone of 427 hectares, encompasses the fortified stronghold of Chittorgarh
Chittor_Fort
Sultan of the Ottoman Empire (r. 1444–1446, 1451–1481)
but each attempt ended in failure. The Ottomans regarded Wallachia as a buffer zone between them and the Kingdom of Hungary and, in return for a yearly
Mehmed_II
Type of hash function
version pseudocode is provided as follows: algorithm FastCDC input: data buffer src, data length n, output: cut point i MinSize ← 2KB // split minimum chunk
Rolling_hash
Ancient Mesopotamian city-state
Circular groups of bricks excavated in 1900
Ur
.50-caliber heavy machine gun
butterfly trigger is depressed with one or both thumbs. Recently, new rear buffer assemblies have used squeeze triggers mounted to the handgrips, doing away
M2_Browning
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
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
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)
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
Set of standards
(Tris-acetate-EDTA) and TBE (Tris-borate-EDTA) are the usual buffers of choice. TBE buffer is preferred for small DNA pieces, whereas TAE is better suited
Molecular-weight_size_marker
CIRCULAR BUFFER
CIRCULAR BUFFER
Boy/Male
Hindu
Lord vishnus weapon, Circular
Boy/Male
Indian, Sanskrit
Circular; Resembles a Wheel
Boy/Male
Tamil
Lord vishnus weapon, Circular
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’.
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.
Boy/Male
Indian, Sanskrit
Circular; Resembles a Wheel
CIRCULAR BUFFER
CIRCULAR BUFFER
Boy/Male
Tamil
Lord of sweetness
Girl/Female
Indian, Modern, Tamil
Sea Fairy
Girl/Female
Gujarati, Hindu, Indian, Japanese, Kannada, Malayalam, Marathi, Punjabi, Sikh, Tamil, Telugu, Traditional
One who Lives in the Heart; Blessing
Girl/Female
Hindu, Indian
Heaven
Girl/Female
Hindu, Indian
Sun or Moon
Girl/Female
Hindu, Indian
Bearer of Light; Basil Plant; Name of Tulsi
Male
Swiss
, able councillor.
Girl/Female
American, Australian, British, Christian, English, French, German, Irish, Latin
Trust; Belief; Fairy; Confidence; Raven; Elf
Female
Egyptian
, a daughter of Rameses II.
Girl/Female
Arabic, Muslim
Pearl
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
a.
In the form of, or bounded by, a circle; round.
a.
Circular; illogical.
a.
Perfect; complete.
a.
Circular; suitable to rotation.
n.
A circular dance.
a.
Round; circular; spherical.
v. i.
To move circularly; to form a circle; to circulate.
a.
repeating itself; ending in itself; reverting to the point of beginning; hence, illogical; inconclusive; as, circular reasoning.
n.
A circular projecting portion.
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.
Adhering to a fixed circle of legends; cyclic; hence, mean; inferior. See Cyclic poets, under Cyclic.
a.
Addressed to a circle, or to a number of persons having a common interest; circulated, or intended for circulation; as, a circular letter.
a.
Spherical; orbicular; orblike; circular.
a.
A sleeveless cloak, cut in circular form.
n.
Circular motion in a direction contrary to some other circular motion.
adv.
In a circular manner.
a.
A circular letter, or paper, usually printed, copies of which are addressed or given to various persons; as, a business circular.
a.
Nearly circular.
n.
The quality or state of being circular; a circular form.
n.
A small circular saw.