Chapter 03: Storage

Question 1

BD-R discs

Answer 1

A recordable Blu-ray Disc. (109)

Question 2

BD-RE discs

Answer 2

A rewritable Blu-ray Disc. (109)

Question 3

BD-ROM (Blu-ray Disc read-only memory) discs

Answer 3

A Blu-ray Disc that can be read from, but not written to, by the user. (108)

Question 4

Blu-ray Discs (BDs)

Answer 4

A high-capacity (typically 25 GB or 50 GB) disc that is often used to deliver high-definition movies, as well as to store user data. (106)

Question 5

CD discs

Answer 5

A low capacity (typically 700 MB) optical disc that is often used to deliver music and software, as well as to store user data. (106)

Question 6

CD-R discs

Answer 6

A recordable CD. (108)

Question 7

CD-ROM (compact disc read-only memory) discs

Answer 7

A CD that can be read from, but not written to, by the user. (108)

Question 8

CD-RW

Answer 8

A rewritable CD. (109)

Question 9

cloud storage

Answer 9

Refers to using a storage device that is accessed via the Internet; also called online storage. (115)

Question 10

cluster

Answer 10

One or more sectors; the smallest addressable area of a disk. (98)

Question 11

cylinders

Answer 11

The collection of tracks located in the same location on a set of hard disk surfaces. (98)

Question 12

data movement time

Answer 12

Time to move the data from hard disk to memory or from memory to hard disk. (103)

Question 13

disk access time

Answer 13

The time it takes to locate and read data from (or position and write data to) a storage medium. (103)

Question 14

disk cache

Answer 14

Memory used in conjunction with a magnetic hard drive to improve system performance. (103)

Question 15

DVD discs

Answer 15

A medium capacity (typically 4.7 GB or 8.5 GB) optical disc that is often used to deliver software and movies, as well as to store user data. (106)

Question 16

DVD-R discs or DVD+R discs

Answer 16

Recordable DVDs. (109)

Question 17

DVD-ROM (digital versatile disc read-only memory) discs

Answer 17

A DVD that can be read from, but not written to, by the user. (108)

Question 18

DVD-RW, DVD+RW

Answer 18

Rewritable DVDs. (109)

Question 19

Embedded flash memory

Answer 19

Flash memory chips embedded into products, such as consumer devices. (110)

Question 20

file

Answer 20

Something stored on a storage medium, such as a program, a document, or an image. (95)

Question 21

filename

Answer 21

A name given to a file by the user; it is used to retrieve the file at a later time. (95)

Question 22

flash memory

Answer 22

Nonvolatile memory chips that can be used for storage by the computer or user; can be built into a computer or a storage medium. (110)

Question 23

flash memory card

Answer 23

A small, rectangular flash memory medium, such as a CompactFlash (CF) or Secure Digital (SD) card; often used with digital cameras and other portable devices. (111)

Question 24

folders

Answer 24

A named place on a storage medium into which the user can place files in order to keep the files stored on that medium organized. (95)

Question 25

hard drive

Answer 25

The primary storage system for most computers; used to store most programs and data used with a computer. (96)

Question 26

Holographic storage

Answer 26

An emerging type of storage technology that uses multiple blue laser beams to store data in three dimensions. (117)

Question 27

hybrid hard drives

Answer 27

A hard drive that contains both a large amount of flash memory and magnetic hard disks. (103)

Question 28

magnetic hard drive

Answer 28

A hard drive consisting of one or more metal magnetic disks permanently sealed, along with an access mechanism and read/write heads, inside its drive. (97)

Question 29

Magnetic tape

Answer 29

Storage media consisting of plastic tape with a magnetizable surface that stores data as a series of magnetic spots; typically comes as a cartridge. (120)

Question 30

network attached storage (NAS)

Answer 30

A high-performance storage device individually connected to a network to provide storage for computers on that network. (114)

Question 31

network storage

Answer 31

Refers to using a storage device that is accessed through a local network. (114)

Question 32

online storage

Answer 32

Refers to using a storage device that is accessed via the Internet; also called cloud storage. (115)

Question 33

optical discs

Answer 33

A type of storage medium read from and written to using a laser beam. (105)

Question 34

optical drives

Answer 34

A drive used with optical discs, such as CD or DVD discs. (106)

Question 35

RAID (redundant arrays of independent disks)

Answer 35

A storage method that uses several hard drives working together, typically to increase performance and/or fault tolerance. (119)

Question 36

rotational delay

Answer 36

Time to rotate hard disks so that read/write heads are over part of cylinder to be used. (103)

Question 37

sectors

Answer 37

A small piece of a track. (98)

Question 38

seek time

Answer 38

Time to move read/write heads to cylinder that contains/will contain desired data. (103)

Question 39

smart card

Answer 39

A credit card-sized piece of plastic containing a chip and other circuitry that can store data. (116)

Question 40

Solid-state drives (SSDs)

Answer 40

A hard drive that uses flash memory media instead of metal magnetic hard disks. (100)

Question 41

storage area networks (SANs)

Answer 41

A network of hard drives or other storage devices that provide storage for a network of computers. (114)

Question 42

storage device

Answer 42

A piece of hardware, such as a DVD drive, into which a storage medium is inserted to be read from or written to. (93)

Question 43

storage medium

Answer 43

The part of a storage system, such as a DVD disc, where data is stored. (93)

Question 44

tracks

Answer 44

A concentric path on a disk where data is recorded. (98)

Question 45

USB flash drives

Answer 45

A small storage device that plugs into a USB port and contains flash memory media. (112)