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Magnetic data storage device
computer memory. Many early computers, called drum computers or drum machines, used drum memory as the main working memory of the computer. Some drums were
Drum_memory
Earliest electronic computer design
access memory of 1,024 words of 36 bits each. The access time for Williams-tube memory on the IBM 701 was 30 microseconds. Magnetic drum memory was invented
Vacuum-tube_computer
First computer to use magnetic disk storage
length decimal (BCD) computer with a drum memory rotating at 6000 RPM that held 3200 alphanumeric characters. A core memory buffer of 100 characters was used
IBM_305_RAMAC
Computer memory management technique
memory that consisted of 16,384 words of primary core memory with an additional 98,304 words of secondary drum memory. The addition of virtual memory
Virtual_memory
Component that stores information
random-access memory, although some older forms of computer memory, such as drum memory, are not random-access. Archaic synonyms for main memory include core
Computer_memory
Type of memory used on processors that require high transfer rate memory
High Bandwidth Memory (HBM) is a computer memory interface for 3D-stacked synchronous dynamic random-access memory (SDRAM), initially developed by Samsung
High_Bandwidth_Memory
Storage of digital data readable by computers
rotating magnetic drums as primary storage. By 1954, those unreliable methods were mostly replaced by magnetic-core memory. Core memory remained dominant
Computer_data_storage
Computer memory that does not lose its contents after being turned off
Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retain stored information even after power is removed. In contrast
Non-volatile_memory
Type of computer memory
Static random-access memory (static RAM or SRAM) is a type of random-access memory (RAM) that uses latching circuitry (flip-flop) to store each bit. SRAM
Static_random-access_memory
in a mechanically rotating drum for memory. However, its paper card writer/reader was unreliable and the regenerative drum contact system was mechanical
History_of_computing_hardware
Form of computer data storage
for main memory functions. Ultrasonic delay lines were serial devices which could only reproduce data in the order it was written. Drum memory could be
Random-access_memory
Self-correcting computer data storage
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
ECC_memory
Type of computer memory
magnetic-core memory. Capacitors had also been used for earlier memory schemes, such as the drum of the Atanasoff–Berry Computer, the Williams tube and the
Dynamic_random-access_memory
Informatician, inventor, engineer
archives of the Technisches Museum Wien. In 1932 Tauschek built a magnetic drum memory. Throughout the 1930s Tauschek worked as a consultant to IBM. For IBM
Gustav_Tauschek
Computer memory that loses its contents when unpowered
Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents
Volatile_memory
non-volatility. Magnetic tape is a type of sequential access memory still in use; historically, drum memory has also been used. Sequential access Basic sequential
Sequential_access_memory
Type of computer memory used from 1955 to 1975
magnetic-core memory is a form of random-access memory. It predominated for roughly 20 years between 1955 and 1975, and is often just called core memory, or, informally
Magnetic-core_memory
Recording of information in a storage medium
optical disc drives, memory cards, and solid-state drives (SSDs). It also includes experimental forms like holographic memory. Mass storage includes
Data_storage
Early form of read-only memory
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
Core_rope_memory
Form of non-volatile memory used in computers and other electronic devices
Read-only memory (ROM) is a form of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified
Read-only_memory
Librascope General Purpose computer (1956)
single address instruction set had only 16 commands. Magnetic drum memory held the main memory, and the central processing unit (CPU) processor registers
LGP-30
Vacuum-tube 1950s computer system
computers used vacuum tubes and drum memory too, but they were quite different from the IBM 650. Instructions read from the drum went to a program register
IBM_650
Parts of a drum kit
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
Drum_hardware
Topics referred to by the same term
Look up Drum or drum in Wiktionary, the free dictionary. A drum is a musical instrument. Drum, drums or The Drum may also refer to: Drum (communication)
Drum_(disambiguation)
Discontinued computer memory type
XPoint (pronounced three-D cross point) is a discontinued non-volatile memory (NVM) technology developed jointly by Intel and Micron Technology. It was
3D_XPoint
First implementation of paged virtual memory
freeing programs from being forced to use physical locations on the drum memory. It did this by using a modified ALGOL compiler (the only programming
THE_multiprogramming_system
First-generation computer
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
Bull_Gamma_3
Pioneering American computer firm (1946–1952)
computers, but as the market expanded they became better known for their drum memory systems. They were eventually purchased by Remington Rand and merged
Engineering Research Associates
Engineering_Research_Associates
Transistorized computer delivered from 1961 to 1967
word length and used an 8192-word drum memory as main storage, with 256 words of rapid-access ferrite core memory. It operated on fixed and floating-point
Z23_(computer)
Computer memory type used for data preservation
laser writing process. It is also branded Superman memory crystal, in reference to the Kryptonian memory crystals from the Superman franchise. Discs using
5D_optical_data_storage
Persistent computer data storage with no moving parts
interface or SPI. Electronics portal Drum memory – a magnetic data storage device used as the main working memory in many early computers i-RAM – a DRAM-based
Solid-state_storage
Early form of computer memory
inventors Freddie Williams and Tom Kilburn, is an early form of computer memory. It was the first random-access digital storage device, and was used successfully
Williams_tube
Novel computer memory type
Phase-change memory (also known as PCM, PCME, PRAM, PCRAM, OUM (ovonic unified memory) and C-RAM or CRAM (chalcogenide RAM)) is a type of non-volatile
Phase-change_memory
Data-storage devices
random access for stored data. Drums were later largely replaced by the hard disk drive. Drums were used as main memory by IBM in computers including the
IBM_drum_storage
Obsolete type of non-volatile computer memory
Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles or
Bubble_memory
Data storage device
(also known as a thumb drive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable
USB_flash_drive
memory built was the rotating capacitor drum memory of the Atanasoff–Berry Computer (1942). Each of its two drums stored thirty 50-bit binary numbers (1500
Regenerative_capacitor_memory
World's first industrial robot, first produced in 1961
another box and was connected to an arm, with systematic tasks stored in a drum memory. In 2003 the Unimate was inducted into the Robot Hall of Fame. The 1961
Unimate
Electronic musical instrument that creates percussion sounds
A drum machine is an electronic musical instrument that creates percussion sounds, drum beats, and patterns. Drum machines may imitate drum kits or other
Drum_machine
Data storage device
Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory. It typically refers to devices
Semiconductor_memory
magnetic core memory was 16383 words. The programmable program memory had a maximum size of 4096 words. For mass storage there was a drum memory available
Z25_(computer)
Computer made in France circa 1960
Binary Automatic Calculator 500) was a transistorized computer using drum memory designed between 1957-1959 by Société d'Electronique et d'Automatisme
CAB_500
Computer announced by UNIVAC in 1958
addition of 1,280 words of core memory and support for magnetic tape drives. The SS I had only the standard 5,000-word drum memory described in this article
UNIVAC_Solid_State
Computer memory architecture
In computer architecture, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and
Memory_hierarchy
German 1950s computer
of 38-bit as fast-access RAM implemented as core memory 8192-word (38-bit each) magnetic drum memory as RAM One teletype as console and main input/output
Z22_(computer)
processor using fixed-point data with 27-bit words. The storage was a drum memory. Electronic circuits were soldered encapsulated modules, consisting of
ASC-15
Type of computer introduced in 1956
× 0.91 m × 0.91 m) and weighs about 966 lb (438 kg). The G-15 has a drum memory of 2,160 29-bit words, along with 20 words used for special purposes
Bendix_G-15
Chinese digital electronic computer
103 computer initially used magnetic drum memory, later adding magnetic core memory. With magnetic drum memory, the 103 computer operated at approximately
DJS-1
Computer memory used for small quantities of data
or E2PROM (electrically erasable programmable read-only memory) is a type of non-volatile memory. It is used in computers, usually integrated in microcontrollers
EEPROM
Electronic non-volatile computer storage device
Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash
Flash_memory
British computer scientist (1918–2009)
physicist and computer scientist who was an early developer of the magnetic drum memory for computers. He is known for Booth's multiplication algorithm. In his
Andrew_Donald_Booth
Sweden's first electronic computer
Institute of Technology, U.S. During the development of the BESK magnetic drum memory, Olle Karlqvist discovered a magnetic phenomenon, which has been called
BESK
Computer programmer
quirks, for example taking advantage of the rotation of the LGP-30's drum memory to avoid writing delay loops into the code. The story, as written by
The_Story_of_Mel
Type of computer memory
rate synchronous dynamic random-access memory (DDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) widely used in computers and other
DDR_SDRAM
started as drum memory which was an early form of memory for computers. The drum would have to be pre-loaded with data and small heads in the drum would read
Internal_RAM
Early type of computer memory
electronic computer memory, delay-line memory was a refreshable memory, but as opposed to modern random-access memory, delay-line memory was sequential-access
Delay-line_memory
Type of computer memory
memory. A standard for persistent memory known as NVDIMM-P has been published in 2021. Some early computers used magnetic drum, which was non-volatile as a
Non-volatile random-access memory
Non-volatile_random-access_memory
American robotics company (1962-88)
invented a variety of new technologies, including a unique rotating drum memory system with data parity controls. In 1960, Devol personally sold the
Unimation
Early French computer manufacturer from 1947
in magnetic core memory. The Symmag would prove to be a central element in the architecture of the CAB 500, alongside a drum memory and sixteen 32-bit
Société d'électronique et d'automatisme
Société_d'électronique_et_d'automatisme
Univac computer introduced in 1958
magnetic core memory, in two or three banks of 4,096 words each. Magnetic drum memory provided either 16,384 or 32,768 words, in one or two drums with 16,384
UNIVAC_1105
Secondary storage device
access to data, the main examples being drum memory and hard disk drives. Later, optical disc drives and flash memory units are also classified as DASD. The
Direct-access_storage_device
Early and obsolete type of computer memory
The Selectron was an early form of digital computer memory developed by Jan A. Rajchman and his group at the Radio Corporation of America (RCA) under the
Selectron_tube
Family of mainframe computers
and its successors. They all used vacuum tubes and many used drum memory as their main memory. Some were designed by Engineering Research Associates (ERA)
UNIVAC_1100/2200_series
Novel type of computer memory
Resistive random-access memory (ReRAM or RRAM) is a type of non-volatile (NV) random-access (RAM) computer memory that works by changing the resistance
Resistive random-access memory
Resistive_random-access_memory
compatible with the sequential access memory in computers of those times — mostly magnetic tape memory and drum memory. Use of Cracovians in astronomy faded
Cracovian
Type of computer memory
Synchronous dynamic random-access memory (synchronous dynamic RAM or SDRAM) is any DRAM where the operation of its external pin interface is coordinated
Synchronous dynamic random-access memory
Synchronous_dynamic_random-access_memory
Type of computer memory
Magnetoresistive random-access memory (MRAM) is a type of non-volatile random-access memory which stores data in magnetic domains. Developed in the mid-1980s
Magnetoresistive_RAM
1996 EP by Nevermore
In Memory is an EP by American heavy metal band Nevermore. It was recorded in April and May 1996 and released on July 23, 1996. It features a Bauhaus medley
In_Memory
Programmable machine that processes data
300 vacuum tubes, with capacitors fixed in a mechanically rotating drum for memory. During World War II, the British code-breakers at Bletchley Park achieved
Computer
Computer storage device with no moving parts
driven storage medium. SSDs rely on non-volatile memory, typically NAND flash, to store data in memory cells. The performance and endurance of SSDs vary
Solid-state_drive
Early type of solid state computer memory
read-only memory, is a type of programmable read-only memory (PROM) chip that retains its data when its power supply is switched off. Computer memory that
EPROM
Action performed by computers
disks, CDs, DVDs and magnetic tape, as well as early primary memory types such as drum memory, read and write data only in a predetermined order, consecutively
Reading_(computer)
Univac computer introduced in 1953
random-access memory of 1024 words of 36 bits each. Each of the 36 Williams tubes was 5 inches (130 mm) in diameter. A magnetic drum memory provided 16
UNIVAC_1103
Early computer built by the RAND Corporation, in service 1953-1966
that stored data in the "spare bits" to fail. Later in 1955 a 12k-word drum memory secondary storage system was added as well. A transistor-based adder
JOHNNIAC
Type of computer memory
type of synchronous dynamic random-access memory (SDRAM) designed to use less power than conventional memory. It is commonly used in smartphones, tablet
LPDDR
Part of computer memory
The memory cell is the fundamental building block of computer memory. The memory cell is a device, such as an electronic circuit, that stores one bit of
Memory_cell_(computing)
Large multi-threaded computer released in 1960
(non-return-from-zero), a technology that had been previously developed for the drum memory of the Gamma 3. Class 3 included slower recording equipment such as:
Bull_Gamma_60
US Air Force command, control, and coordination system
activities. Advanced Display Console Drum memory system with controller and two vertical drum memory devices. Each drum read and wrote 50 bits at a time in
AN/FSQ-31 SAC Data Processing System
AN/FSQ-31_SAC_Data_Processing_System
Write once computer memory
A programmable read-only memory (PROM) is a form of digital memory where the contents are set after the device is manufactured. Once set, the contents
Programmable_ROM
machine at Princeton. It used vacuum tubes for logic and a magnetic drum for main memory, in place of the Williams tube storage favoured by most early IAS-derived
APEXC
Musical instrument
contain "drum kit" presets in their memory. Each drum kit has different sounds, such as jazz drums played with a "brushes" sound, rock drums, Latin drums, African
Electronic_drum
Novel type of computer memory
Ferroelectric RAM (FeRAM, F-RAM or FRAM) is a random-access memory similar in construction to DRAM but using a ferroelectric layer instead of a dielectric
Ferroelectric_RAM
Computer architecture bit width
Research Associates (later merged into UNIVAC) designed a series of 24-bit drum memory machines including the Atlas, its commercial version the UNIVAC 1101
24-bit_computing
Removable disk storage medium
equipment requiring standard floppy disks (e.g. synthesizers, samplers, drum machines, sequencers, and lighting consoles). Industrial automation equipment
Floppy_disk
Brand of electronic drums
V-Drums (Virtual Drums) are a line of electronic drums by Roland Corporation which were first launched in 1997. V-Drums trigger devices are of four major
Roland_V-Drums
American computer built in the 1950s
under "Task 13". The resulting machines, known as "Atlas", used drum memory for main memory and featured a simple central processing unit built for integer
UNIVAC_1101
Novel computer memory type
Racetrack memory or domain-wall memory (DWM) is an experimental non-volatile memory device under development at IBM's Almaden Research Center by a team
Racetrack_memory
Data recording made of plastic film
cartridges and cassettes Pogue, David (1 September 2016). "Digitize Those Memory-Filled Cassettes before They Disintegrate". Scientific American. Archived
Magnetic_tape
Electro-mechanical data storage device
produced in large volume, like mobile phones and tablets, rely on flash memory storage devices. More than 224 companies have produced HDDs historically
Hard_disk_drive
Replaceable device used for the distribution and storage of video games
exposed by the port and attached via an edge connector; the cartridge was memory mapped directly into the system's address space such that the CPU could
ROM_cartridge
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
bits/second to identical magnetic drum storage devices in each major city in the United States. These slave drum memory units located in the metropolitan
Stock_market_data_systems
Early transistorized digital computer
binary-coded decimal words used fixed-point arithmetic. Main memory was a 32-word magnetic drum memory. Input and output devices included a console keyboard
Clary_DE-60
American jazz drummer and bandleader (1917–1987)
sheet music, preferring to listen to the drum parts played in rehearsal by his drum roadie and rely on his memory. Rich was born in Sheepshead Bay, Brooklyn
Buddy_Rich
Magnetic tape data storage technology
cartridge of the same generation with the following exceptions: the cartridge memory identifies it to the drive as WORM, the servo tracks are slightly different
Linear_Tape-Open
High-level programming language
interacting with data stored in drum memory. The second operation (OP2) is a logical operation that has the remaining 1 associated memory address. Logical operations
Speedcoding
1950s electronic digital computer
8-inch-diameter (200 mm), 10,000-word magnetic drum memory. (As CALDIC's decimal words were 10 digits each, the magnetic memory could store about 400,000 bits.) It
CALDIC
ferromagnetic surface layer to the magnetic drum memory for the BESK computer. When designing a magnetic memory store, the ferromagnetic layer must be studied
Karlqvist_gap
Proposed form of computer storage
Universal memory refers to a computer data storage device combining the cost benefits of DRAM, the speed of SRAM, the non-volatility of flash memory along
Universal_memory
American mainframe and supercomputer firm (1957–1999)
started developing new products. Rand was most interested in the magnetic drum memory systems that ERA had pioneered. In 1955, the Sperry Corporation bought
Control_Data_Corporation
DRUM MEMORY
DRUM MEMORY
Girl/Female
Indian, Telugu
Drum
Boy/Male
American, British, English
Manly; Abbreviation of Andrew
Girl/Female
Arabic, Australian, Indian, Punjabi, Sikh
Jesus of Drum; Always Happy
Girl/Female
Indian
A tree
Girl/Female
Muslim
Plays a small drum
Girl/Female
Arabic, Pashtun
Paradise; Heaven
Boy/Male
Hindu
A star
Surname or Lastname
Danish
Danish : habitational name from any of several places called Órum, named as a compound of ór ‘gravel beach’ + hem ‘dwelling’. This name is also found in Norway, of Danish origin.English : variant of Orme 1.
Boy/Male
German
Strong.
Girl/Female
Muslim
Daughter-in-law of Aditi
Girl/Female
Biblical
A drum, betraying.
Boy/Male
English
Abbreviation of Andrew 'manly.
Boy/Male
Celtic Welsh
Mythical son of Dremidydd.
Biblical
a drum; betraying
Girl/Female
Indian
Daughter-in-law of Aditi
Girl/Female
Indian
Plays a small drum
Girl/Female
Indian
A garden in heaven
Boy/Male
German, Greek
Strong; Masculine
Girl/Female
Muslim
A garden in heaven
Girl/Female
Spanish
Plays a small drum.
DRUM MEMORY
DRUM MEMORY
Male
German
Short form of Latin Johannes, JOHAN means "God is gracious." In use by the Czechs, Finnish, Germans and Scandinavians.
Girl/Female
Hindu, Indian, Marathi, Sanskrit
Fame; Praise; Poetry
Girl/Female
Afghan, Arabic, Australian, Muslim, Pashtun
Moon-like; Light Ray of Moon
Boy/Male
Tamil
Boy/Male
American, Arabic, Chinese, Indian, Sanskrit
Ready for Battle
Male
English
Warrior
Male
Arthurian
, a lover of Gwenhwyvar.
Boy/Male
Greek Latin
In Greek mythology, Arcas was the son of Jupiter and Callisto and son of Zeus.
Girl/Female
Hebrew, Indian, Punjabi, Sikh
Honey; Happiness; Beautiful Diamond
Girl/Female
Hindu
DRUM MEMORY
DRUM MEMORY
DRUM MEMORY
DRUM MEMORY
DRUM MEMORY
n.
A drum.
v. t.
To execute on a drum, as a tune.
p. pr. & vb. n.
of Drum
n.
A sheet iron radiator, often in the shape of a drum, for warming an apartment by means of heat received from a stovepipe, or a cylindrical receiver for steam, etc.
v. t.
(With up) To assemble by, or as by, beat of drum; to collect; to gather or draw by solicitation; as, to drum up recruits; to drum up customers.
v. i.
To beat with the fingers, as with drumsticks; to beat with a rapid succession of strokes; to make a noise like that of a beaten drum; as, the ruffed grouse drums with his wings.
n.
As much spirituous liquor as is usually drunk at once; as, a dram of brandy; hence, a potation or potion; as, a dram of poison.
n.
One who beats a drum.
v. t.
(With out) To expel ignominiously, with beat of drum; as, to drum out a deserter or rogue from a camp, etc.
n.
Anything resembling a drum in form
n.
The beat of a drum.
a.
Old-fashioned; queer; odd; as, a rum idea; a rum fellow.
v. i.
To drum.
imp. & p. p.
of Drum
n.
A fashionable assembly; a drum. See the Note under Drum, n., 4.
v. t.
To affect or season with drugs or ingredients; esp., to stupefy by a narcotic drug. Also Fig.
n.
The sound of a beaten drum; drum music.
v. i.
To beat a drum with sticks; to beat or play a tune on a drum.