Full Form of HDD

Full Form of HDD

Hard Disk Drive

HDD Full Form is Hard Disk Drive. A hard disk drive (HDD), hard disk, hard drive or fixed disk is an information storing device for loading and reclaiming electronic material. Documents are retrieved in a random- retrieve method. Thus, the blocks of data could be saved or recovered in any sequence. HDDs are a stable memory; the data is retained even when powered off. Presented by IBM in 1956, HDDs became the leading secondary storing device for household computers by the early 1960s. Unceasingly HDDs have advanced and sustained the rank in the 21st century.


Above 200 corporations have manufactured HDD units, still most contemporary units are assembled by Seagate, Toshiba, and Western Digital. The chief features of an HDD are its volume and functioning. Size is detailed in unit prefixes equivalent to powers of 1000: a 1-terabyte (TB) drive has a size of 1,000 gigabytes; where 1 gigabyte = 1 billion bytes. Usually, a part of an HDD’s capacity or size is inaccessible to the operator since it is taken perhaps by the innate redundancy of computer system or blunder amendment and retrieval.


HDDs have the application that scans and stores data on a hard disk. HDDs for computers normally have required times of about 12milliseconds or less. Various disk drives develop their functioning via the method of caching. Since 2015, HDD manufacture and areal density are increasing, while unit shipments are diminishing. The hard disk drive is the central and the bulkiest data storage hardware device on a computer. The operating system, software labels, and most other documents are gathered in the hard disk drive.

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