storage Flashcards

storage

1
Q

bit

A

A single binary digit (a 1 or a 0). The smallest unit of storage inside a computer.

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2
Q

BluRay

A

Optical secondary storage device capable of storing 16GB+.

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3
Q

byte

A

Storage unit: 8 bits. Enough to store a single ASCII text character.

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4
Q

CD-ROM

A

Optical secondary storage device capable of holding 650-700MB of data.

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5
Q

CompactFlash

A

Solid state storage device usually used in digital cameras.

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6
Q

data synchronisation

A

Exchanging data between a computer and a portable device such as a smart phone.

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7
Q

disk wiping

A

Securing deleting files from a disk, beyond recovery.

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8
Q

DVD

A

Optical secondary storage device capable of storing up to 8GB.

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9
Q

eSATA

A

A modern type of connector for attaching external hard disks

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10
Q

EB

A

See Exabyte

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11
Q

exabyte

A

Storage unit: 1024 petabytes.

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12
Q

external hard disk

A

Portable storage device often used for backups.

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13
Q

firewire

A

Interface for attaching external hard disks and digital video cameras.

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14
Q

flash memory/flash drive

A

See solid state storage.

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15
Q

GB

A

See Gigabyte.

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16
Q

Gigabyte

A

Storage unit: 1024 megabytes.

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17
Q

hard disk

A

Magnetic secondary storage device found in most desktop and laptop computers.

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18
Q

IDE

A

Interface for attaching internal hard disks.

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19
Q

input

A

Data or information that is entered into the computer.

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20
Q

KB

A

See kilobyte.

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21
Q

Kilobyte

A

Storage unit: 1024 bytes

22
Q

magnetic storage

A

Type of secondary storage that users magnets to read and store data. Examples include floppy disks and hard disks.

23
Q

MB

A

See megabyte.

24
Q

Megabyte

A

Storage unit: 1024 kilobytes

25
Q

MMC

A

Solid state secondary storage device, often used for digital cameras.

26
Q

mouse

A

Input device used to control a cursor or pointer.

27
Q

non-volatile storage

A

Storage which does not lose its contents when the power is removed.

28
Q

optical storage

A

Storage devices which use lasers to store and read data. Examples include CDs and DVDs.

29
Q

PB

A

See petabyte.

30
Q

Petabyte

A

Storage unit: 1024 terabytes

31
Q

Primary storage

A

Storage systems which are found inside the computer and are electronic. RAM and ROM are examples.

32
Q

Redundant Array of Inexpensive Disks

A

System where multiple hard disks contain duplicate data, to be used in the event of one failing.

33
Q

Redundant system

A

System which will take over the role of a primary system if it fails.

34
Q

RAID

A

Redundant Array of Inexpensive Disks. A way of having two (or more) hard disks in a computer and having the exact same data written to each of them automatically. If one of the disks fails, the computer can switch to the other disk and continue running normally (since the second disk is an exact copy).

35
Q

ROM

A

See Read Only Memory.

36
Q

RAM

A

See Random Access Memory.

37
Q

Random Access Memory

A

Primary storage which is fast, relatively expensive, and volatile.

38
Q

Read Only Memory

A

Primary storage whose contents are written at manufacture and cannot be altered later.

39
Q

SATA

A

Interface for connecting storage devices like hard disks.

40
Q

Secondary storage

A

Storage systems which are connected externally to the computer’s motherboard.

41
Q

secure deletion

A

See disk wiping.

42
Q

solid state storage

A

A type of secondary storage device that uses electronic circuits to read and store data. The advantage of this is that is has no moving parts, making it faster and less likely to be damaged if dropped. Also called flash memory. (Compare magnetic storage with optical storage and solid state storage)

43
Q

TB

A

See terabyte

44
Q

Terabyte

A

Storage unit: 1024 gigabytes

45
Q

Universal Serial Bus

A

Common interface for connecting peripheral devices including mice, printers, and digital cameras.

46
Q

USB

A

Common interface for connecting peripheral devices including mice, printers, and digital cameras.

47
Q

volatile storage

A

Storage which loses its contents when the power is removed.

48
Q

YB

A

See Yottabyte.

49
Q

ZB

A

See Zettabyte

50
Q

yottabyte

A

Storage unit: 1024 zettabyes

51
Q

zettabyte

A

Storage unit: 1024 exabytes