Blu-ray and Hard disk drive

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Difference between Blu-ray and Hard disk drive

Blu-ray vs. Hard disk drive

Blu-ray or Blu-ray Disc (BD) is a digital optical disc data storage format. A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

Byte

The byte is a unit of digital information that most commonly consists of eight bits, representing a binary number.

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Data storage

Data storage is the recording (storing) of information (data) in a storage medium.

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Data-rate units

In telecommunications, data-transfer rate is the average number of bits (bitrate), characters or symbols (baudrate), or data blocks per unit time passing through a communication link in a data-transmission system.

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Digital video recorder

A digital video recorder (DVR) is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device.

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Gigabyte

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

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Hard disk drive performance characteristics

Higher performance in hard disk drives comes from devices which have better performance characteristics.

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IBM

The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.

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Nanometre

The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).

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Parallel ATA

Parallel ATA (PATA), originally, is an interface standard for the connection of storage devices such as hard disk drives, floppy disk drives, and optical disc drives in computers.

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Personal computer

A personal computer (PC) is a multi-purpose computer whose size, capabilities, and price make it feasible for individual use.

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Random access

In computer science, random access (more precisely and more generally called direct access) is the ability to access any item of data from a population of addressable elements roughly as easily and efficiently as any other, no matter how many elements may be in the set.

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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.

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Terabyte

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

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Toshiba

, commonly known as Toshiba, is a Japanese multinational conglomerate headquartered in Tokyo, Japan.

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USB

USB (abbreviation of Universal Serial Bus), is an industry standard that was developed to define cables, connectors and protocols for connection, communication, and power supply between personal computers and their peripheral devices.

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