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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)
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
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
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
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
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
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
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
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)
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)
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
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
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
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)
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
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
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
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
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
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)
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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
Area in which an animal lives and moves
since 2005 include: LoCoH Brownian Bridge Line-based Kernel GeoEllipse Line-Buffer Computer packages for using parametric and nonparametric kernel methods
Home_range
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
2025 Android smartphones developed by Google
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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
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
American hybrid car (2010–2015)
window was increased to use 10.8 kWh of the total battery energy, and the buffer to ensure battery life longevity. These adjustments extend the Volt's all-electric
Chevrolet Volt (first generation)
Chevrolet_Volt_(first_generation)
Large-screen film format
momentarily-paused still image. This requires a mechanical apparatus to buffer the jerky travel of the film strip. The older technology of running 70 mm
IMAX
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
EUV_lithography
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
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
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
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
Train protection system in the UK and Victoria, Australia
fast; approached a reduction in permissible speed too fast; approached buffer stops too fast. TPWS is not designed to prevent signals passed at danger
Train Protection & Warning System
Train_Protection_&_Warning_System
Competitive solving of combination puzzles
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
Historical semi-nomadic Turkic ethnic group
behind the ethnonym "Khazar". For most of its history, Khazaria served as a buffer state between the Byzantine Empire, the nomads of the northern steppes,
Khazars
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
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
Home media streaming device from Apple
the size of its predecessor. The device has 8 GB of flash storage for buffering, replacing the internal hard drive in the first generation model. It supports
Apple_TV_(device)
Collaborationist regime in France (1940–1944)
population and clergy; their attempts at naming a local king in 1941 to buffer the territory from their opponents backfired as the newly elected king refused
Vichy_France
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
WWII German submachine gun
features a telescoping return spring guide which serves as a pneumatic recoil buffer. The cocking handle was permanently attached to the bolt on early MP 38s
MP_40
Ancient Mesopotamian city-state
Circular groups of bricks excavated in 1900
Ur
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)
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
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
Ruins of Hindu temples in Da Nang city, Vietnam
Circular pedestal at E1 bearing the inscription: "This kosa is offered to Vikrantavarman, the most powerful King of kings"
Mỹ_Sơn
Computer graphic techniques
rendered by blending (using alpha compositing) all surfaces into a single buffer (think of this as a canvas). Each surface occludes existing color and adds
Order-independent transparency
Order-independent_transparency
Chinese automobile manufacturer
stations are equipped with integrated energy storage systems, which act as buffers to supply power during peak demand or in locations with limited grid capacity
BYD_Auto
American long-range, subsonic cruise missile
instead would compute contrast maps and then combine multiple maps into a buffer, then compare the average of those combined images to determine if it was
Tomahawk_missile
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
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
.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
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
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)
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
CIRCULAR BUFFER
CIRCULAR BUFFER
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’.
Boy/Male
Indian, Sanskrit
Circular; Resembles a Wheel
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
Boy/Male
Tamil
Lord vishnus weapon, Circular
Boy/Male
Hindu
Lord vishnus weapon, Circular
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER
CIRCULAR BUFFER