"Drum storage" redirects here. For the electronic musical instrument, see drum machine.
Computer memory and Computer data storage types
General
Memory cell
Memory coherence
Cache coherence
Memory hierarchy
Memory access pattern
Memory map
Secondary storage
MOS memory
floating-gate
Continuous availability
Areal density (computer storage)
Block (data storage)
Object storage
Direct-attached storage
Network-attached storage
Storage area network
Block-level storage
Single-instance storage
Data
Structured data
Unstructured data
Big data
Metadata
Data compression
Data corruption
Data cleansing
Data degradation
Data integrity
Data security
Data validation
Data validation and reconciliation
Data recovery
Storage
Data cluster
Directory
Shared resource
File sharing
File system
Clustered file system
Distributed file system
Distributed file system for cloud
Distributed data store
Distributed database
Database
Data bank
Data storage
Data store
Data deduplication
Data structure
Data redundancy
Replication (computing)
Memory refresh
Storage record
Information repository
Knowledge base
Computer file
Object file
File deletion
File copying
Backup
Core dump
Hex dump
Data communication
Information transfer
Temporary file
Copy protection
Digital rights management
Volume (computing)
Boot sector
Master boot record
Volume boot record
Disk array
Disk image
Disk mirroring
Disk aggregation
Disk partitioning
Memory segmentation
Locality of reference
Logical disk
Storage virtualization
Virtual memory
Memory-mapped file
Software entropy
Software rot
In-memory database
In-memory processing
Persistence (computer science)
Persistent data structure
RAID
Non-RAID drive architectures
Memory paging
Bank switching
Grid computing
Cloud computing
Cloud storage
Fog computing
Edge computing
Dew computing
Amdahl's law
Moore's law
Kryder's law
Volatile
RAM
Hardware cache
CPU cache
Scratchpad memory
DRAM
eDRAM
SDRAM
SGRAM
LPDDR
QDRSRAM
EDO DRAM
XDR DRAM
RDRAM
DDR
GDDR
HBM
SRAM
1T-SRAM
ReRAM
QRAM
Content-addressable memory (CAM)
Computational RAM
VRAM
Dual-ported RAM
Video RAM (dual-ported DRAM)
Historical
Williams–Kilburn tube (1946–1947)
Delay-line memory (1947)
Mellon optical memory (1951)
Selectron tube (1952)
Dekatron
T-RAM (2009)
Z-RAM (2002–2010)
Non-volatile
ROM
Diode matrix
MROM
PROM
EPROM
EEPROM
ROM cartridge
Solid-state storage (SSS)
Flash memory is used in:
Solid-state drive (SSD)
Solid-state hybrid drive (SSHD)
USB flash drive
IBM FlashSystem
Flash Core Module
Memory card
Memory Stick
CompactFlash
PC Card
MultiMediaCard
SD card
SIM card
SmartMedia
Universal Flash Storage
SxS
MicroP2
XQD card
Programmable metallization cell
NVRAM
Memistor
Memristor
PCM (3D XPoint)
MRAM
Electrochemical RAM (ECRAM)
Nano-RAM
CBRAM
Early-stage NVRAM
FeRAM
ReRAM
FeFET memory
Analog recording
Phonograph cylinder
Phonograph record
Quadruplex videotape
Vision Electronic Recording Apparatus
Magnetic recording
Magnetic storage
Magnetic tape
Magnetic-tape data storage
Tape drive
Tape library
Digital Data Storage (DDS)
Videotape
Videocassette
Cassette tape
Linear Tape-Open
Betamax
8 mm video format
DV
MiniDV
MicroMV
U-matic
VHS
S-VHS
VHS-C
D-VHS
Hard disk drive
Optical
3D optical data storage
Optical disc
LaserDisc
Compact Disc Digital Audio (CDDA)
CD
CD Video
CD-R
CD-RW
Video CD
Super Video CD
Mini CD
Nintendo optical discs
CD-ROM
Hyper CD-ROM
DVD
DVD+R
DVD-Video
DVD card
DVD-RAM
MiniDVD
HD DVD
Blu-ray
Ultra HD Blu-ray
Holographic Versatile Disc
WORM
In development
CBRAM
Racetrack memory
NRAM
Millipede memory
ECRAM
Patterned media
Holographic data storage
Electronic quantum holography
5D optical data storage
DNA digital data storage
Universal memory
Time crystal
Quantum memory
UltraRAM
Historical
Paper data storage (1725)
Punched card (1725)
Punched tape (1725)
Plugboard
Drum memory (1932)
Magnetic-core memory (1949)
Plated-wire memory (1957)
Core rope memory (1960s)
Thin-film memory (1962)
Disk pack (1962)
Twistor memory (~1968)
Bubble memory (~1970)
Floppy disk (1971)
v
t
e
Drum memory of a Polish ZAM-41 [pl] computerDrum memory from the BESK computer, Sweden's first binary computer, which made its debut in 1953
Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria.[1][2] Drums were widely used in the 1950s and into the 1960s as computer memory.
Many early computers, called drum computers or drum machines, used drum memory as the main working memory of the computer.[3] Some drums were also used as secondary storage as for example various IBM drum storage drives.
Drums were displaced as primary computer memory by magnetic core memory, which offered a better balance of size, speed, cost, reliability and potential for further improvements.[4] Drums were then replaced by hard disk drives for secondary storage, which were both less expensive and offered denser storage. The manufacturing of drums ceased in the 1970s.
^US Patent 2,080,100 Gustav Tauschek, Priority date August 2, 1932, subsequent filed as
German Patent DE643803, "Elektromagnetischer Speicher für Zahlen und andere Angaben, besonders für Buchführungseinrichtungen" (Electromagnetic memory for numbers and other information, especially for accounting institutions)
^Universität Klagenfurt (ed.). "Magnetic drum". Virtual Exhibitions in Informatics. Archived from the original on 14 April 2022. Retrieved 2011-08-21.
^Datamation, September 1967, p.25, "For Bendix and Ramo-Wooldridge, the G-20 and RW-400 were parallel core machines rather than serial drum machines of the type already in their product lines."
^Matick, Richard (1977). Computer Storage Systems & Technology. Wiley. p. 15.
computer memory. Many early computers, called drum computers or drum machines, used drummemory as the main working memory of the computer. Some drums were...
memory that consisted of 16,384 words of primary core memory with an additional 98,304 words of secondary drummemory. The addition of virtual memory...
length decimal (BCD) computer with a drummemory rotating at 6000 RPM that held 3200 alphanumeric characters. A core memory buffer of 100 characters was used...
terms RAM, main memory or primary storage. Archaic synonyms for main memory include core (for magnetic core memory) and store. Main memory operates at a...
main memory is called "RAM" (an acronym of random-access memory) and secondary storage is called "disk" (a shorthand for hard disk drive, drummemory or...
archives of the Technisches Museum Wien. In 1932 Tauschek built a magnetic drummemory. Throughout the 1930s Tauschek worked as a consultant to IBM. For IBM...
non-volatility. Magnetic tape is a type of sequential access memory still in use; historically, drummemory has also been used. Sequential access Basic sequential...
Error correction code memory (ECC memory) is a type of computer data storage that uses an error correction code (ECC) to detect and correct n-bit data...
in a mechanically rotating drum for memory. However, its paper card writer/reader was unreliable and the regenerative drum contact system was mechanical...
Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents...
In computer organisation, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and...
Historically, memory has, depending on technology, been called central memory, core memory, core storage, drum, main memory, real storage, or internal memory. Meanwhile...
computers used vacuum tubes and drummemory too, but they were quite different from the IBM 650. Instructions read from the drum went to a program register...
Drum "racks" are stands surrounding a drum kit onto which percussion instrument holders may be clamped. "Memory locks" are clamps used to make drum and...
Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash...
E.T.'s memory in groups of 48 instructions, referred to as "series". When needed, a series was moved from the drum to an intermediate memory group acting...
High Bandwidth Memory (HBM) is a computer memory interface for 3D-stacked synchronous dynamic random-access memory (SDRAM) initially from Samsung, AMD...
data storage Recording format Semiconductor memory Software-defined storage Telecommunication Volatile memory Visual arts Gilbert, Walter (Feb 1986). "The...
Dynamic Random-Access Memory (DDR SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) class of memory integrated circuits...
In addition to the drums used as main memory by IBM, e.g., IBM 305, IBM 650, IBM offered drum devices as secondary storage for the 700/7000 series and...
Core rope memory is a form of read-only memory (ROM) for computers. It was used in the UNIVAC I (Universal Automatic Computer I) and the UNIVAC II, developed...
Global Information
