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Accumulation of data corruption on a storage device over time
Data degradation is the gradual corruption of computer data due to an accumulation of non-critical failures in a data storage device. It is also referred
Data_degradation
is considered passive. Unlike passive cables, which can suffer from data degradation due to issues such as attenuation, crosstalk, and group velocity distortion
Active_cable
Computer memory type used for data preservation
5D optical data storage is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. It is
5D_optical_data_storage
Recording of information in a storage medium
Data storage is the recording (storing) of information (data) in a storage medium. Handwriting, phonographic recording, magnetic tape, and optical discs
Data_storage
Topics referred to by the same term
refer to: Software rot, the deterioration of unmaintained software Data degradation, the decay of electromagnetic charge in a computer's storage Disc rot
Bit_rot
Storage of digital data readable by computers
Computer data storage or digital data storage is the retention of digital data via technology consisting of computer components and recording media. Digital
Computer_data_storage
Stored data in computer systems
terms Virtual backup appliance Related topics Data consistency Data degradation Data portability Data proliferation Database dump Digital preservation
Backup
Errors in computer data that introduce unintended changes to the original data
resources: Data degradation, also called data rot Computer science Data integrity Database integrity Radiation hardening Software rot Countermeasures: Data Integrity
Data_corruption
Proprietary file system developed by Microsoft
automatic integrity checking and data scrubbing, elimination of the need for running chkdsk, protection against data degradation, built-in handling of hard
ReFS
Electronic non-volatile computer storage device
This is why data retention goes down and the risk of data loss increases with increasing degradation. The silicon oxide in a cell degrades with every erase
Flash_memory
Type of memory used on processors that require high transfer rate memory
CK_t and CK_c. Each channel interface maintained a 128‑bit data bus operating at this double data rate (DDR). HBM1 supported transfer rates of 1 GT/s per
High_Bandwidth_Memory
Early form of read-only memory
Corporation in the 1950s, as it was a popular technology for program and data storage in that era. It was later used in the 1960s by early NASA Mars space
Core_rope_memory
Type of computer memory
Double data rate synchronous dynamic random-access memory (DDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) widely used in computers
DDR_SDRAM
Data storage technologies that use magnetic tape
Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording. Commercial magnetic tape products used for data storage
Magnetic-tape_data_storage
Type of computer memory
is a type of random-access semiconductor memory that stores each bit of data in a memory cell. A DRAM memory cell usually consists of a microscopic capacitor
Dynamic_random-access_memory
Loss of quality between copies
substantial degradation – similar problems happen on rotation. This can be avoided by the use of jpegtran or similar tools for cropping. Similar degradation occurs
Generation_loss
Type of computer memory
Low-Power Double Data Rate (LPDDR) is a type of synchronous dynamic random-access memory (SDRAM) designed to use less power than conventional memory. It
LPDDR
Form of non-volatile memory used in computers and other electronic devices
form of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of
Read-only_memory
Family of archive file formats used by 7-Zip
The 7z format also lacks recovery records, making it vulnerable to data degradation unless used in conjunction with external solutions, like parchives
7z
Organization of collected data
Praxi Data hold patents related to data curation technologies and processes. Literature portal Biocurator Data archaeology Data degradation Data format
Data_curation
Process of encoding and decoding binary data to and from synthesized strands of DNA
DNA digital data storage is the process of encoding and decoding binary data to and from synthesized strands of DNA. While DNA as a storage medium has
DNA_digital_data_storage
Type of data structure
File System (IPFS), BitTorrent hashtree ZFS file system (to counter data degradation); Dat protocol; Apache Wave protocol; Git and Mercurial distributed
Merkle_tree
Topics referred to by the same term
and other cellulose-rich plant matter Necrosis, of tissue Bit rot, data degradation Software rot, a form of bit rot Disk rot, also called CD Rot or DVD
Rot
Early color photography method
standing-wave storage samples placed on the ISS during 2019 showed no signs of data degradation after exposure to cosmic rays for nine months. Photochromy Holography
Lippmann_plate
Computer error correction technique
allows the FPGA to be reprogrammed while still operational. Data corruption Data degradation Error detection and correction fsck - a tool for checking the
Data_scrubbing
Computer network with multiple nodes to store information
A distributed data store is a computer network where information is stored on more than one node, often in a replicated fashion. It is usually specifically
Distributed_data_store
Degradation of AI models trained on synthetic data
"model autophagy disorder" or "MAD", is the degradation of machine learning models from uncurated synthetic data, or from training on the outputs of another
Model_collapse
Enclosure for meteorological devices
every two years. The siting of the screen is very important to avoid data degradation by the effects of ground cover, buildings and trees: WMO 2010 recommendations
Stevenson_screen
Use of paper as computer memory
Paper data storage refers to the use of paper as a data storage device. This includes writing, illustrating, and the use of data that can be interpreted
Paper_data_storage
Data storage device
A USB flash drive (also known as a thumb drive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive
USB_flash_drive
Magnetic tape data storage technology
the LTO Ultrium format, is a magnetic tape data storage technology used for backup, data archiving, and data transfer. It was originally developed in the
Linear_Tape-Open
Computer memory that loses its contents when unpowered
contents while powered on but when the power is interrupted, the stored data is quickly lost. Volatile memory has several uses, including as primary storage
Volatile_memory
Type of data compression
file sizes significantly before degradation is noticed by the end-user. Even when noticeable by the user, further data reduction may be desirable (e.g
Lossy_compression
Chemical reaction
sequencing peptides. The later developed Edman degradation is an improvement upon the Bergmann degradation, instead cleaving the N-terminal amino acid of
Bergmann_degradation
Component that stores information
stores information, such as data and programs, for immediate use in the computer; instructions fetched by the computer, and data fetched and stored by those
Computer_memory
Method to store and retrieve computer data using optics
Optical storage is a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats
Optical_storage
Computer memory that does not lose its contents after being turned off
constant power in order to retain data. Non-volatile memory typically refers to storage in memory chips, which store data in floating-gate memory cells consisting
Non-volatile_memory
Single-engine, low-wing tandem-seat turboprop military training aircraft
targets, artificial non-safety critical system failures, and controlled data degradation. The aircraft's fully digital glass cockpit features three large colour
Pilatus_PC-21
Form of computer memory
any order, typically used to store working data and machine code. A random-access memory device allows data items to be read or written in almost the same
Random-access_memory
Data recording made of plastic film
has been used with computers to store data and is still used for backup purposes. Magnetic tape begins to degrade after 10–20 years and, therefore, is
Magnetic_tape
Biodegradable polymer
use in medicine, PLA degrades mainly by hydrolysis. The degradation product is innocuous lactic acid. In the body, full degradation requires 6 months to
Polylactic_acid
Replaceable device used for the distribution and storage of video games
instruments. ROM cartridges allow users to rapidly load and access programs and data alongside a floppy drive in a home computer; in a video game console, the
ROM_cartridge
Computer memory used for small quantities of data
systems, or as a separate chip device, to store relatively small amounts of data by allowing individual bytes to be erased and reprogrammed. EEPROMs are organized
EEPROM
Electro-mechanical data storage device
fixed disk is an electro-mechanical computer data storage device that stores and retrieves digital data using magnetic storage with one or more rigid
Hard_disk_drive
Environmental process
Grassland degradation, also called vegetation or steppe degradation, is a biotic disturbance in which grass struggles to grow or can no longer exist on
Grassland_degradation
hard disk or other modern media) of programs and data that will inevitably succumb to data degradation as the original physical media deteriorates and
KryoFlux
Removable disk storage medium
(130 mm) and then the 3½-inch (90 mm) became a ubiquitous form of data storage and data transfer into the first years of the 21st century. By the end of
Floppy_disk
Computer storage device with no moving parts
locate data, they are vastly superior to HDDs in such tests. However, SSDs have challenges with mixed reads and writes, and their performance may degrade over
Solid-state_drive
Type of memory used on graphics cards
although they share some of the same features—including double data rate (DDR) data transfers. As of 2025[update], GDDR SDRAM has been succeeded by GDDR2
GDDR_SDRAM
Climate change mitigation policy
countries to reduce greenhouse gas emissions from deforestation and forest degradation, and to promote conservation, sustainable forest management, and enhancement
REDD+
Compact encoding of digital data
In information theory, data compression, source coding, or bit-rate reduction is the process of encoding information using fewer bits than the original
Data_compression
Memory card format
higher clock speeds (26 MHz and 52 MHz alongside the normal 20 MHz) and wider data buses (8‑bit alongside the previous 1- and 4‑bit), which combined to enable
MultiMediaCard
Sheet listing work-related hazards of a product or substance
A safety data sheet (SDS), material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational
Safety_data_sheet
Process of salvaging inaccessible data from corrupted or damaged secondary storage
In computing, data recovery is a process of retrieving deleted, inaccessible, lost, corrupted, damaged, or overwritten data from secondary storage, removable
Data_recovery
Type of computer memory
memory; data is lost when power is removed. The static qualifier differentiates SRAM from dynamic random-access memory (DRAM): SRAM will hold its data permanently
Static_random-access_memory
Early type of solid state computer memory
(PROM) chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored data after a power supply has been
EPROM
Type of computer memory used from 1955 to 1975
expensive and a scarce resource, technologies were developed to swap blocks of data "out of core" onto larger, slower storage. Algorithms whose working set size
Magnetic-core_memory
Early form of computer memory
and each Williams tube could typically store about 256 to 2560 bits of data. Because the electron beam is essentially inertia-free and can be moved anywhere
Williams_tube
Data structure that always preserves the previous version of itself when it is modified
updating older versions of a data structure may be allowed to degrade, as is true with the rope data structure. In addition, a data structure can be referred
Persistent_data_structure
Chemical used in plastics, xenoestrogen
between 4.5 and 15 days, degradation in the air is faster than this, while soil samples degrade more slowly. BPA in sediment degrades most slowly of all, particularly
Bisphenol_A
Early type of computer memory
applied. The shaper ensures the pulses remain well-formed, removing any degradation due to losses in the medium. The memory capacity equals the recirculation
Delay-line_memory
Water filtration process
described commercial methods for copper zinc water filtration is via kinetic degradation fluxion media (KDF), a product whose main filtration line consists of
Copper_zinc_water_filtration
Type of computer memory
memory (MRAM) is a type of non-volatile random-access memory which stores data in magnetic domains. Developed in the mid-1980s, proponents have argued that
Magnetoresistive_RAM
Preservation of media
substrate may gradually degrade, leading to a loss of formatting and data. Early laser disk media were prone to degradation as the layers of the disk
Media_preservation
Write once computer memory
programmable) memory is a special type of non-volatile memory (NVM) that permits data to be written to memory only once. Once the memory has been programmed, it
Programmable_ROM
Magnetic data storage device
Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria. Drums were widely used in the 1950s and into the 1960s as
Drum_memory
Type of random-access memory
accessed simultaneously through the ports since a write operation modifies the data and therefore needs to be synchronized with a read or another write operation
Dual-ported_RAM
Persistent computer data storage with no moving parts
(in tape drives). Pairing such magnetic media with read/write heads allows data to be written by separately magnetizing small sections of the ferromagnetic
Solid-state_storage
Small molecule (PROTAC)
the E3 ligase to the target results in ubiquitination and subsequent degradation of the target protein via the proteasome. Because PROTACs need only to
Proteolysis_targeting_chimera
Method of overwriting data
controllers is a popular solution with no degradation in performance at all. When encryption is in place, data erasure acts as a complement to crypto-shredding
Data_erasure
Flat, usually circular disc that encodes binary data
to the outermost track. The data are stored on the disc with a laser or stamping machine, and can be accessed when the data path is illuminated with a
Optical_disc
Computer memory architecture
Programmers are responsible for moving data between disk and memory through file I/O. Hardware is responsible for moving data between memory and caches. Optimizing
Memory_hierarchy
Copy-on-write file system
designed with a focus on data integrity by protecting the user's data on disk against silent data corruption caused by data degradation, power surges (voltage
ZFS
Data storage device
semiconductor device used for digital data storage, such as computer memory. It typically refers to devices in which data is stored within metal–oxide–semiconductor
Semiconductor_memory
Decline in online platform quality
Doctorow". Cory Doctorow first used enshittification to describe service degradation, formalising his use in a November 2022 blog post that was republished
Enshittification
American mainframe and supercomputer firm (1957–1999)
Control Data Corporation (CDC) was a mainframe and supercomputer company that in the 1960s was one of the nine major U.S. computer companies, a group which
Control_Data_Corporation
Novel computer memory type
In addition, with flash, each burst of voltage across the cell causes degradation. As the size of the cells decreases, damage from programming grows worse
Phase-change_memory
Variant of magnetic-core computer memory
perpendicular to) the data wire. Early versions operated in a destructive read mode,[citation needed] requiring a write after read to restore data. Non-destructive
Plated-wire_memory
Type of computer memory
Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory
Non-volatile random-access memory
Non-volatile_random-access_memory
Obsolete type of non-volatile computer memory
small magnetized areas, known as bubbles or domains, each storing one bit of data. The material is arranged to form a series of parallel tracks that the bubbles
Bubble_memory
Novel type of computer memory
greater maximum read/write endurance (about 1010 to 1015 cycles). FeRAMs have data retention times of more than 10 years at +85 °C (and decades at lower temperatures)
Ferroelectric_RAM
Combining data from multiple sources
Data integration is the process of combining, sharing, or synchronizing data from multiple sources to provide users with a unified view. There are a wide
Data_integration
Data collection system
Data localization or data residency law requires data about a nation's citizens or residents to be collected, processed, and/or stored inside the country
Data_localization
Obsolete form of removable media
computer data storage, introduced in the 1960s. A disk pack is a layered grouping of hard disk platters (circular, rigid discs coated with a magnetic data storage
Disk_pack
Assembly of photovoltaic cells used to generate electricity
to withstand hail. Potential-induced degradation (also called PID) is a potential-induced performance degradation in crystalline photovoltaic modules,
Solar_panel
Network that allows computers to share resources and communicate with each other
of obstruction so that the signal can cover longer distances without degradation. In most twisted-pair Ethernet configurations, repeaters are required
Computer_network
Data structure holding key/value pairs
array, key-value store, map, symbol table, or dictionary is an abstract data type that stores a collection of key/value pairs, such that each possible
Associative_array
Part of computer memory
element of digital systems. In computers, it allows to store both programs and data and memory cells are also used for temporary storage of the output of combinational
Memory_cell_(computing)
Resilience of systems to component failures or errors
change Elegant degradation – Maintaining complete functionality through permanent damage Error detection and correction – Reliable digital data delivery methods
Fault_tolerance
Novel type of computer memory
Millipede memory is a form of non-volatile computer memory. It promised a data density of more than 1 terabit per square inch (1 gigabit per square millimeter)
Millipede_memory
Land capable of being ploughed and used to grow crops
practices led to the degradation of 996 Mha of agricultural lands; this accounts for over 60% of human-induced land degradation, which affects a total
Arable_land
Fallback mode for a RAID storage array
RAID array experiences the failure of one or more disks, it can enter degraded mode, a fallback mode that generally allows the continued usage of the
Degraded_mode
Data storage device
act as a cache for the data stored on the HDD, improving the overall performance by keeping copies of the most frequently used data on the faster SSD. There
Hybrid_drive
Data that remains after deleting it
media degradation or other errors. Software overwrite may also be problematic in high-security environments, which require stronger controls on data commingling
Data_remanence
Data Center system (WDC). In addition, data on electronic media that are at risk of loss due to media degradation are also candidates for rescue. In December
Global Oceanographic Data Archaeology and Rescue Project
Global_Oceanographic_Data_Archaeology_and_Rescue_Project
Type of computer memory
interleaved fashion. This allows SDRAMs to achieve greater concurrency and higher data transfer rates than asynchronous DRAMs could. Pipelining means that the chip
Synchronous dynamic random-access memory
Synchronous_dynamic_random-access_memory
Process by which a natural habitat becomes incapable of supporting its native species
habitat. Marine areas close to highly populated coastal cities also face degradation of their coral reefs or other marine habitat. Forest City, a township
Habitat_destruction
Type of rechargeable battery
cell voltage). Several degradation processes occur, some during cycling, some during storage, and some all the time: Degradation is strongly temperature-dependent:
Lithium-ion_battery
Tendency of optical discs to become unreadable
Classical.net - How a manufacturing problem can cause disc quality degradation "Using CDs for Data Storage" article, with extensive footnoting. A bad case of
Disc_rot
Breakdown of proteins into smaller polypeptides or amino acids
breakdown of proteins into smaller polypeptides or amino acids. Protein degradation is a major regulatory mechanism of gene expression and contributes substantially
Proteolysis
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