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CGS 2060 > CHAPTER 7 > Flashcards

CHAPTER 7 Flashcards

1
Q

before data can be processed or a program run it must be in RAM and RAM is often ref as primary storage true or false?

A

true

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2
Q

ram looses all of its content when the computer is turned off true or false?

A

true

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3
Q

what is secondary storage ?

A

provides perm or non violative storage

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4
Q

what are the important characteristics of secondary storage

A

media- capacity- storage devices ( aka drives) and access speed

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5
Q

most cell phones and tablets have solid state storage drives and most laptops and desktops computers have internal hard disk drives true or false?

A

true

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6
Q

what is media?

A
  • are the physical material that holds the data and programs
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7
Q

what is capacity?

A
  • measures how much a particular storage medium can hold
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8
Q

what are storage devices?

A

hardware that reads data and programs from storage media and they are typically ref as drives

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9
Q

what is access speed?

A

measures the amount of time req by the storage device to retrieve data and programs

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10
Q

solid state storage decides provide access to flash memory aka solid state storage true or false ?

A

true

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11
Q

what are solid state drives ( ssd’s)?

A
  • they retrieve data and info in the same manner like RAM
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12
Q

ssd’s are fast durable and require little power making them a good choice for cellphone, tablets and laptops true or false?

A
  • true
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13
Q

what are flash memory cards?

A
  • solid state storage devices widley used in portable devices and are used in devices like cellphones, laptops and gps nav
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14
Q

what are usb drives or flash drives?

A
  • compact and connect to a computer through its usb poet to transfer files and has a capacity from 1gb-256gb
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15
Q

hard disk drives rotate and have read/write heads that move in and out that allow hdd to use inexpensive tech to provide large capacity storage true or false?

A

true

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16
Q

what does density refer to?

A
  • how tightly these charges can be packed next to one another on the disk
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17
Q

hard disk use rigid metallic ……. that are stacked up on top of another

A

platters

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18
Q

what are tracks? and where are the divided to?

A
  • are rings of concentric circles on the platter and they are divides into invisible wedge shaped sections called sectors
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19
Q

what does a cylinder do?

A
  • runs through each track of a stack of platters and are nescessary to differ files stored on the same track and Dif sector platters
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20
Q

what are internal hard drives?

A

Located inside the system unit these are hard disk that are able to store and retrieve large quantities of information quickly

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21
Q

what are internal hard disks used for?

A

They are used to store programs and data files

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22
Q

Have a fixed amount of storage cannot be easily removed from the system unit. They provide slower access and are typically connected to a USB or thunder bolt port on the system unit or easily removed.

A

external hard disk

23
Q

Use the same basic technology as internal hard drive, and are used primarily to complement an internal hard disk, they are easily removable, and are useful to protect a secure sensitive info

A
  • external hard drives
24
Q

what are network drives ?

A

place the drive or drives on the network and can be located across the world from the system unit

25
Q

what are the 4 ways to enhance performance ?

A

disc casching, hybrid drives redundant arrays of inexpensive disks ( RAID) and file compression and file decompression

26
Q

Improves hardest performance, by anticipating data, needs,
-performs a function similar to cash a memory
- requires a combination of hardware and software
What we use data is automatically identify and read from the hard disk into the disc cache

A

disk caching

27
Q
  • Are storage drives that contain both solid state storage and hard disk in an attempt to gain the speed and power benefits of SSDs, while still having the low cost in large capacity of hard drives
    -typically use SSD to store the operating system and applications in a hard disk to store, videos, music, and documents
A

hybrid drives

28
Q

Improve performance by expanding external storage, improving access, speed, and providing reliable storage.

A

redundant arrays of inexpensive disks (RAID)

29
Q
  • increase storage capacity by reducing the amount of space required to store data and programs
    -it’s not limited to hard disk systems
  • is frequently used to compress files on DVDs, CDs, and flash drives
  • helps speed up transmission of files from one computer to another
    -can scan files for ways to reduce the amount of require storage by searching for repeating patterns
A

file compression/ file decompression

30
Q

what are optical discs?

A
  • can hold over 128gb of data
  • ## uses laser beams alters of a plastic or metallic disc to rep data
31
Q
  • the ones and zeros are represented by flat areas called lands and bumpy areas called pits on the disk surface and the disc is ready to buy an optical disk Drive using a laser that projects a tiny beam of light on these areas true or false
A

true

32
Q

the most widely used optical disc are cd, dvd and blu ray disk true or false?

A

true

33
Q

what are compact disc

A

-first widely available optical format for PC users
-largely been replaced by DVDs and Blu-ray’s
- optical disc that store music often cities

34
Q

what are digital versatile discs ( dvd’s)

A
  • are the standard optical disc in PCs and are very similar to CDs except that the typical DVD disc in store 4.7 GB which is seven times a capacity of CDs and these type of optical this store movies and software are usually DVDs.
35
Q

what are blu rays discs ( bd’s)

A

-a new form of optical storage designed to store high death video and the name comes from a special blue color laser used to read the disk that gives them a typical capacity of 50 GB which is 10 times the capacity of DVDs

36
Q

is the newest blu ray disc ultra hd blu rays that are able to play back 4k video content

A

true

37
Q

What are the three basic formats each optical disk have?

A
  • read only, right once and rewritable
38
Q

what is ROM ( read only memory )

A
  • discs that cannot be written on or erased by the user, and they are bought in store such as CDs, DVD movies, and Blu-ray video games
39
Q

what is write once or recordable

A
  • can be written on once, after that, the discount be ready many times, but cannot be written on or erased
  • you know they are ideal for creating permanent archive such a CDR, which is often used for storing family photos, and DVD are which is often used for storing home videos
40
Q

what is rewritable ?

A
  • they are similar to write once this, except at the disc surface is not permanently alter. When data is recorded, they are changeable, portable storage options in our popular for store in ensuring audio, video and large multimedia presentation.
41
Q

When the Internet acts as a cloud of servers that supply applications to a client as a service rather than a product, it is known as

A

-cloud computing

42
Q

Cloud storage is also known as online storage, true or false an what is an example of cloud storage/online storage?

A
  • Google docs and true
43
Q

What are the benefits cloud storage

A

-maintenance, hardware, updates, file, sharing, and collaboration

44
Q

what are the disadvantages of cloud storage

A

-access, speed, foul security

45
Q

What is mass storage?

A

Refers to be a tremendous amount of secondary storage required by large organizations

46
Q

What are mass storage devices?

A

-specialize high-capacity, secondary storage devices designed to meet organizational demands for data storage, the mass amounts of storage solutions allow large corps and institutions to centralizer, maintenance and security of data, which reduces cost and personal

47
Q

What is an enterprise storage system?

A

-and establish strategy to promote efficiency and safe use of data across the networks within their organizations

48
Q

What are some of the mass storage devices that support the strategy?

A

File servers, Network attached storage, a.k.a. NAS, RAID systems and org cloud storage

49
Q

-these are dedicated computers with very large storage capacity is that provide users access to fast storage and retrieval of data

A

-file servers

50
Q

What is networks attached storage?

A

A type of server designed for homes in small businesses, it is less expensive and easier to set up as well as manage

51
Q

what are RAID systems?

A

-they are larger versions of the specialized devices that are protected by data, constantly making backup copies of files moving across to organizations networks

52
Q

what is organizational cloud storage?

A

-High speed, Internet, connection, dedicated remote storage facility, these facilities, contain banks of file service to office enourmaous amounts of storage

53
Q

what is the storage area network?

A

-and architecture to link remote computer storage devices, such as enterprise storage systems, computers, that the devices are available as locally attached drives

54
Q

does SAN provide the disk space for data true or false?

A

true

CGS 2060 (3 decks)

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