Hard disk drive
Electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material.
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Seagate Technology
American data storage company.
Seagate developed the first 5.25-inch hard disk drive (HDD), the 5-megabyte ST-506, in 1980.
Western Digital
Western Digital Corporation (WDC, commonly known as Western Digital or WD) is an American computer hard disk drive manufacturer and data storage company, headquartered in San Jose, California.
Toshiba
Japanese multinational conglomerate headquartered in Minato, Tokyo.
Its diversified products and services include power, industrial and social infrastructure systems, elevators and escalators, electronic components, semiconductors, hard disk drives (HDD), printers, batteries, lighting, as well as IT solutions such as quantum cryptography which has been in development at Cambridge Research Laboratory, Toshiba Europe, located in the United Kingdom, now being commercialised.
IBM
American multinational technology corporation headquartered in Armonk, New York, with operations in over 171 countries.
Inventions by IBM include the automated teller machine (ATM), the floppy disk, the hard disk drive, the magnetic stripe card, the relational database, the SQL programming language, the UPC barcode, and dynamic random-access memory (DRAM).
Non-volatile memory
Type of computer memory that can retain stored information even after power is removed.
Other examples of non-volatile memory include read-only memory (ROM), EPROM (erasable programmable ROM) and EEPROM (electrically erasable programmable ROM), ferroelectric RAM, most types of Computer data storage devices (e.g. disk storage, hard disk drives, optical discs, floppy disks, and magnetic tape), and early computer storage methods such as punched tape and cards.
Solid-state drive
Solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory, and functioning as secondary storage in the hierarchy of computer storage.
It is also sometimes called a semiconductor storage device, a solid-state device or a solid-state disk, even though SSDs lack the physical spinning disks and movable read–write heads used in hard disk drives (HDDs) and floppy disks.
Block (data storage)
Sequence of bytes or bits, usually containing some whole number of records, having a maximum length; a block size.
Blocking is almost universally employed when storing data to 9-track magnetic tape, NAND flash memory, and rotating media such as floppy disks, hard disks, and optical discs.
Gigabyte
Multiple of the unit byte for digital information.
This definition is used in all contexts of science (especially data science), engineering, business, and many areas of computing, including storage capacities of hard drives, solid state drives, and tapes, as well as data transmission speeds.
File system
Method and data structure that the operating system uses to control how data is stored and retrieved.
As of 2019, hard disk drives have been key storage devices and are projected to remain so for the foreseeable future.
Serial ATA
Serial ATA (SATA, abbreviated from Serial AT Attachment) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives.