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CSCI 1250 > Chapter 8 > Flashcards

Chapter 8 Flashcards

1
Q

storage medium

A

physical material on which a computer keeps data, info, programs, and apps (secondary storage)

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2
Q

cloud storage

A

keeps info on servers on the internet, and the actual media where the files are stored are transparent to the user

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3
Q

storage device

A

the hardware that records and/or retrieves items to and from storage media

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4
Q

reading

A

the process of transferring items from a storage medium into memory

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5
Q

writing

A

the process of transferring items from memory to a storage medium

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6
Q

capacity

A

the number of bytes a storage medium can hold

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7
Q

kilobyte

A

one thousand

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8
Q

megabyte

A

one million

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9
Q

gigabyte

A

one billion

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10
Q

terabyte

A

one trillion

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11
Q

storage medium

A

items remain intact even when you turn off a computer or mobile device- nonvolatile

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12
Q

memory

A

holds data and instructions temporarily-volatile

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13
Q

transfer rate

A

the speed with which data, instructions, and info transfer to and from a device

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14
Q

hard drive

A

the collection term for both hard disks and SSDs- contains circular platters that use magnetic particles to store data, instructions, and info

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15
Q

what determines storage capacity of a hard drive

A

number of platters it contains, whether it uses longitudinal or perpendicular recording, and the density

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16
Q

formatting of a hard drive

A

dividing the disk into tracks and sectors so the operating system can store and locate data and info on the disk

17
Q

track

A

a narrow recording band that forms a full circle on the surface of the disk

18
Q

sector

A

wedged shaped sections, which break the tracks into small arcs

19
Q

disk defragmenter

A

a tool that reorganizes the files and unused space on a computer’s hard disk so that the operating system accesses data more quickly and programs run faster

20
Q

form factor

A

size

21
Q

read/write heads

A

the mechanism that reads and writes items in the drive as it barely touches the disk’s recording surface (each platter has 2)

22
Q

head crash

A

when a read/write head touches the surface of a platter

23
Q

solid state drive (SSD)

A

flash memory storage device that contains its own processor to manage its storage

24
Q

SSD advantages

A

faster access times, faster transfer rates, quieter operation, more durable, lighter weight, less power consumption, less heat generation, longer life, and defragmentation isn’t required

25
Q

major difference b/w USB and SSDs

A

the form factor (size) and capacity of the drives- USB designed to be external and SSD is designed to be in the computer

26
Q

USB vs. SSD/hard disk

A

SSD doesn’t have moving parts, while USB has drive motors to spin up the magnetic platters and drive heads
SSDs are mechanically better
SSDs are 3x more expensive
SSDs have way less capacity

27
Q

external hard disk

A

separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device

28
Q

reasons to use external hard drive

A

transport large number of files, most include back-up software, easily store large audio/video, secure your data, and add storage space to mobile computer or desktop

29
Q

memory card

A

a removable flash memory storage device that you insert and remove from a slot in a computer, mobile device, or card reader/writer

30
Q

USB flash drive

A

plugs into a USB port on a computer or mobile device

31
Q

cloud storage

A

an internet service that provides storage to a computer or mobile device users

32
Q

personal cloud

A

you can purchase a networked hard drive that makes your data available on a cloud that exists within your home or office

33
Q

enterprise storage

A

enterprise hardware allows large organizations to manage and store data and info using devices intended for heavy use, max efficiency, and max availability

34
Q

network attached storage (NAS)

A

a server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network

35
Q

storage area network (SAN)

A

a high-speed network with the sole purpose of providing storage to other attached servers (includes only storage devices)

36
Q

tape

A

a magnetically coated ribbon of plastic capable of storing large amounts of data and info

37
Q

magnetic strip card

A

has a magnetic stripe that contains info

38
Q

smart card

A

stores data on an integrated circuit embedded in the card

39
Q

RFID tag

A

consists of an antenna and a memory chip that contains the info to be transmitted via radio waves to a computer or computing device

CSCI 1250 (4 decks)

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