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History of IBM magnetic disk drives, the Glossary

IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi.^[1]

77 relations: Al Hoagland, Computer History Museum, Count key data, Crown Zellerbach, Deskstar, Direct-access storage device, Disk pack, Disk read-and-write head, Disk storage, Drum memory, Error detection and correction, Fixed-block architecture, Floppy disk, Hard disk drive, HGST, History of hard disk drives, History of IBM CKD Controllers, History of IBM magnetic disk drives, History of the floppy disk, Hitachi, Houston Automatic Spooling Priority, IBM, IBM 1130, IBM 1400 series, IBM 1401, IBM 1410, IBM 1440, IBM 1620, IBM 1710, IBM 1800 Data Acquisition and Control System, IBM 2321 Data Cell, IBM 305 RAMAC, IBM 3850, IBM 4300, IBM 650, IBM 700/7000 series, IBM 7030 Stretch, IBM 7070, IBM 9370, IBM drum storage, IBM Hursley, IBM System/23 Datamaster, IBM System/360, IBM System/360 Model 20, IBM System/360 Model 25, IBM System/370, IBM System/38, Input/Output Supervisor, International Data Group, Job Entry Subsystem 2/3, ... Expand index (27 more) »
Hard disk computer storage
IBM storage devices

Al Hoagland

Albert Smiley Hoagland ('Al Hoagland') (September 13, 1926 – October 1, 2022) had a long career on the development of hard disk drives (HDD) starting with the IBM RAMAC.

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Computer History Museum

The Computer History Museum (CHM) is a museum of computer history, located in Mountain View, California.

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Count key data (CKD) is a direct-access storage device (DASD) data recording format introduced in 1964, by IBM with its IBM System/360 and still being emulated on IBM mainframes. History of IBM magnetic disk drives and Count key data are IBM storage devices.

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Crown Zellerbach

Crown Zellerbach was an American pulp and paper conglomerate based in San Francisco, California, purchased in a hostile takeover in 1985.

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Deskstar

Deskstar was the name of a product line of computer hard disk drives. History of IBM magnetic disk drives and Deskstar are IBM storage devices.

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Direct-access storage device

A direct-access storage device (DASD) (pronounced) is a secondary storage device in which "each physical record has a discrete location and a unique address". History of IBM magnetic disk drives and direct-access storage device are IBM storage devices.

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Disk pack

Disk packs and disk cartridges were early forms of removable media for computer data storage, introduced in the 1960s. History of IBM magnetic disk drives and disk pack are history of computing hardware.

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Disk read-and-write head

A disk read-and-write head is the small part of a disk drive which moves above the disk platter and transforms the platter's magnetic field into electric current (reads the disk) or, vice versa, transforms electric current into magnetic field (writes the disk). History of IBM magnetic disk drives and disk read-and-write head are hard disk computer storage.

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Disk storage

Disk storage (also sometimes called drive storage) is a data storage mechanism based on a rotating disk.

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Drum memory

Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria.

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Error detection and correction

In information theory and coding theory with applications in computer science and telecommunication, error detection and correction (EDAC) or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.

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Fixed-block architecture

Fixed-block architecture (FBA) is an IBM term for the hard disk drive (HDD) layout in which each addressable block (more commonly, sector) on the disk has the same size, utilizing 4 byte block numbers and a new set of command codes. History of IBM magnetic disk drives and Fixed-block architecture are IBM storage devices.

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Floppy disk

A floppy disk or floppy diskette (casually referred to as a floppy, a diskette, or a disk) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a fabric that removes dust particles from the spinning disk.

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Hard disk drive

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.

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HGST

HGST, Inc. (Hitachi Global Storage Technologies) was a manufacturer of hard disk drives, solid-state drives, and external storage products and services.

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History of hard disk drives

In 1953, IBM recognized the immediate application for what it termed a "Random Access File" having high capacity and rapid random access at a relatively low cost. History of IBM magnetic disk drives and History of hard disk drives are history of computing hardware.

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History of IBM CKD Controllers

Beginning with its 1964 System/360 announcement, IBM's mainframes initially accessed count key data (CKD) subsystems via a channel connected to separate Storage Control Units (SCUs) with attached Direct Access Storage Devices (DASD), typically a hard disk drive. History of IBM magnetic disk drives and History of IBM CKD Controllers are IBM storage devices.

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History of IBM magnetic disk drives

IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. History of IBM magnetic disk drives and History of IBM magnetic disk drives are hard disk computer storage, history of computing hardware and IBM storage devices.

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History of the floppy disk

A floppy disk is a disk storage medium composed of a thin and flexible magnetic storage medium encased in a rectangular plastic carrier. History of IBM magnetic disk drives and History of the floppy disk are history of computing hardware.

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Hitachi

() is a Japanese multinational conglomerate founded in 1910 and headquartered in Chiyoda, Tokyo.

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Houston Automatic Spooling Priority

The Houston Automatic Spooling Priority Program, commonly known as HASP, is an extension of the IBM OS/360 operating system and its successors providing extended support for "job management, data management, task management, and remote job entry.".

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IBM

International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American multinational technology company headquartered in Armonk, New York and present in over 175 countries.

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IBM 1130

The IBM 1130 Computing System, introduced in 1965, was IBM's least expensive computer at that time.

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IBM 1400 series

The IBM 1400 series are second-generation (transistor) mid-range business decimal computers that IBM marketed in the early 1960s.

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IBM 1401

The IBM 1401 is a variable-wordlength decimal computer that was announced by IBM on October 5, 1959.

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IBM 1410

The IBM 1410, a member of the IBM 1400 series, was a decimal computer with a variable word length that was announced by IBM on September 12, 1960 and marketed as a midrange business computer.

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IBM 1440

The IBM 1440 computer was announced by IBM October 11, 1962.

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IBM 1620

The IBM 1620 was announced by IBM on October 21, 1959, and marketed as an inexpensive scientific computer.

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IBM 1710

The IBM 1710 was a process control system that IBM introduced in March 1961.

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IBM 1800 Data Acquisition and Control System

The IBM 1800 Data Acquisition and Control System (DACS) was a process control variant of the IBM 1130 with two extra instructions (CMP and DCM), extra I/O capabilities, 'selector channel like' cycle-stealing capability and three hardware index registers.

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IBM 2321 Data Cell

The IBM 2321 Data Cell is a discontinued direct access storage device (DASD) for the IBM System/360. History of IBM magnetic disk drives and IBM 2321 Data Cell are IBM storage devices.

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IBM 305 RAMAC

The IBM 305 RAMAC was the first commercial computer that used a moving-head hard disk drive (magnetic disk storage) for secondary storage.

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IBM 3850

The IBM 3850 Mass Storage System (MSS) was an online tape library used to hold large amounts of infrequently accessed data. History of IBM magnetic disk drives and IBM 3850 are IBM storage devices.

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IBM 4300

The IBM 4300 series are mid-range systems compatible with System/370 that were sold from 1979 through 1992.

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IBM 650

The IBM 650 Magnetic Drum Data-Processing Machine is an early digital computer produced by IBM in the mid-1950s.

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IBM 700/7000 series

The IBM 700/7000 series is a series of large-scale (mainframe) computer systems that were made by IBM through the 1950s and early 1960s.

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IBM 7030 Stretch

The IBM 7030, also known as Stretch, was IBM's first transistorized supercomputer.

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IBM 7070

IBM 7070 is a decimal-architecture intermediate data-processing system that was introduced by IBM in 1958.

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IBM 9370

The IBM 9370 systems are "baby mainframe" midrange computers, released 1986 at the very low end of, and compatible with System/370.

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IBM drum storage

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 System/360 series of computers. History of IBM magnetic disk drives and IBM drum storage are history of computing hardware and IBM storage devices.

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IBM Hursley

IBM Hursley is a research and development laboratory belonging to International Business Machines in the village of Hursley, Hampshire, England.

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IBM System/23 Datamaster

The System/23 Datamaster (Model 5322 desktop model and Model 5324 floor model) is an 8-bit microcomputer developed by IBM.

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IBM System/360

The IBM System/360 (S/360) is a family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978. It was the first family of computers designed to cover both commercial and scientific applications and a complete range of applications from small to large.

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IBM System/360 Model 20

The IBM System/360 Model 20 is the smallest member of the IBM System/360 family announced in November 1964.

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IBM System/360 Model 25

The IBM System/360 Model 25 is a low-end member of the IBM System/360 family.

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IBM System/370

The IBM System/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970.

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IBM System/38

The System/38 is a discontinued minicomputer and midrange computer manufactured and sold by IBM.

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Input/Output Supervisor

The Input/Output Supervisor (IOS) is that portion of the control program in the IBM mainframe OS/360 operating system and successors which issues the privileged I/O instructions and supervises the resulting I/O interruptions for any program which requests I/O device operations until the normal or abnormal conclusion of those operations.

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International Data Group

International Data Group (IDG, Inc.) is a market intelligence and demand generation company focused on the technology industry.

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Job Entry Subsystem 2/3

The Job Entry Subsystem (JES) is a component of IBM's MVS mainframe operating systems that is responsible for managing batch workloads.

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Kilobyte

The kilobyte is a multiple of the unit byte for digital information.

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List of IBM products

The list of IBM products is a partial list of products, services, and subsidiaries of International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s.

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Magnetic-core memory

In computing, magnetic-core memory is a form of random-access memory. History of IBM magnetic disk drives and magnetic-core memory are history of computing hardware.

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Magnetoresistance

Magnetoresistance is the tendency of a material (often ferromagnetic) to change the value of its electrical resistance in an externally-applied magnetic field.

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Mainframe computer

A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.

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Megabyte

The megabyte is a multiple of the unit byte for digital information.

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Midrange computer

Midrange computers, or midrange systems, were a class of computer systems that fell in between mainframe computers and microcomputers.

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MVS

Multiple Virtual Storage, more commonly called MVS, is the most commonly used operating system on the System/370, System/390 and IBM Z IBM mainframe computers.

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Original equipment manufacturer

An original equipment manufacturer (OEM) is generally perceived as a company that produces parts and equipment that may be marketed by another manufacturer.

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OS/360 and successors

OS/360, officially known as IBM System/360 Operating System, is a discontinued batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964; it was influenced by the earlier IBSYS/IBJOB and Input/Output Control System (IOCS) packages for the IBM 7090/7094 and even more so by the PR155 Operating System for the IBM 1410/7010 processors.

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OS/VS2 (SVS)

Single Virtual Storage (SVS) refers to Release 1 of Operating System/Virtual Storage 2 (OS/VS2); it is the successor system to the MVT option of Operating System/360.

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Partial-response maximum-likelihood

In computer data storage, partial-response maximum-likelihood (PRML) is a method for recovering the digital data from the weak analog read-back signal picked up by the head of a magnetic disk drive or tape drive.

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Plug compatible

Plug compatible refers to "hardware that is designed to perform exactly like another vendor's product." The term PCM was originally applied to manufacturers who made replacements for IBM peripherals.

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Request price quotation

Request price quotation or RPQ is a long-standing IBM designation for a product or component that is potentially available, but that is not on the "standard" price list.

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Revolutions per minute

Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines.

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Rotary actuator

A rotary actuator is an actuator that produces a rotary motion or torque.

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Santa Clara University

Santa Clara University is a private Jesuit university in Santa Clara, California, United States.

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Thomas J. Watson Research Center

The Thomas J. Watson Research Center is the headquarters for IBM Research.

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Time Sharing Option

Time Sharing Option (TSO) is an interactive time-sharing environment for IBM mainframe operating systems, including OS/360 MVT, OS/VS2 (SVS), MVS, OS/390, and z/OS.

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Travelstar

Travelstar was a brand of 2.5-inch hard disk drive (HDD) that was introduced by IBM in 1994 with the announcement of the Travelstar LP. History of IBM magnetic disk drives and Travelstar are IBM storage devices.

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Tribology

Tribology is the science and engineering of understanding friction, lubrication and wear phenomena for interacting surfaces in relative motion.

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Ultrastar (WD brand)

Ultrastar is a Western Digital brand of high performance 3.5-inch hard disk drives (HDDs) and solid-state drives (SSDs). History of IBM magnetic disk drives and Ultrastar (WD brand) are IBM storage devices.

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VM (operating system)

VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers.

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VSE (operating system)

VSEn (Virtual Storage Extended) is an operating system for IBM mainframe computers, the latest one in the DOS/360 lineage, which originated in 1965.

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Washing machine

A washing machine (laundry machine, clothes washer, washer, or simply wash) is a machine designed to launder clothing.

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Winchester Model 1894

The Winchester Model 1894 rifle (also known as the Winchester 94 or Model 94) is a lever-action repeating rifle that became one of the most famous and popular hunting rifles of all time.

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Word mark (computer hardware)

In computer hardware, a word mark or flag is a bit in each memory location on some early variable word length computers (e.g., IBM 1401, 1410, 1620) used to mark the end of a word.

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References

[1] https://en.wikipedia.org/wiki/History_of_IBM_magnetic_disk_drives

Also known as Early IBM disk storage, History of IBM disk storage devices, History of IBM storage devices, IBM 0661, IBM 0662, IBM 0663, IBM 0664, IBM 0665, IBM 0667, IBM 0669, IBM 0671, IBM 0676, IBM 0680, IBM 0681, IBM 1301, IBM 1302, IBM 1311, IBM 1316, IBM 1405, IBM 2302, IBM 2305, IBM 2310, IBM 2311, IBM 2314, IBM 2315, IBM 2318, IBM 2319, IBM 3310, IBM 3330, IBM 3333, IBM 3340, IBM 3350, IBM 3370, IBM 3375, IBM 3380, IBM 3390, IBM 350, IBM 353, IBM 355, IBM 5444, IBM 7300, IBM 9330 Family, IBM 9340, IBM 9345, IBM magnetic disk drives, Single Large Expensive Disk, Winchester Disk, Winchester Drive, Winchester technology, Winnie (hard disk).

, Kilobyte, List of IBM products, Magnetic-core memory, Magnetoresistance, Mainframe computer, Megabyte, Midrange computer, MVS, Original equipment manufacturer, OS/360 and successors, OS/VS2 (SVS), Partial-response maximum-likelihood, Plug compatible, Request price quotation, Revolutions per minute, Rotary actuator, Santa Clara University, Thomas J. Watson Research Center, Time Sharing Option, Travelstar, Tribology, Ultrastar (WD brand), VM (operating system), VSE (operating system), Washing machine, Winchester Model 1894, Word mark (computer hardware).

History of IBM magnetic disk drives, the Glossary

Table of Contents

See also

Hard disk computer storage

IBM storage devices

References