CHAPTER 7

Question 1

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?

Answer 1

true

Question 2

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

Answer 2

true

Question 3

what is secondary storage ?

Answer 3

provides perm or non violative storage

Question 4

what are the important characteristics of secondary storage

Answer 4

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

Question 5

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

Answer 5

true

Question 6

what is media?

Answer 6

• are the physical material that holds the data and programs

Question 7

what is capacity?

Answer 7

• measures how much a particular storage medium can hold

Question 8

what are storage devices?

Answer 8

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

Question 9

what is access speed?

Answer 9

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

Question 10

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

Answer 10

true

Question 11

what are solid state drives ( ssd’s)?

Answer 11

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

Question 12

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

Answer 12

• true

Question 13

what are flash memory cards?

Answer 13

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

Question 14

what are usb drives or flash drives?

Answer 14

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

Question 15

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?

Answer 15

true

Question 16

what does density refer to?

Answer 16

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

Question 17

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

Answer 17

platters

Question 18

what are tracks? and where are the divided to?

Answer 18

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

Question 19

what does a cylinder do?

Answer 19

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

Question 20

what are internal hard drives?

Answer 20

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

Question 21

what are internal hard disks used for?

Answer 21

They are used to store programs and data files

Question 22

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.

Answer 22

external hard disk

Question 23

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

Answer 23

• external hard drives

Question 24

what are network drives ?

Answer 24

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

Question 25

what are the 4 ways to enhance performance ?

Answer 25

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

Question 26

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

Answer 26

disk caching

Question 27

- 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

Answer 27

hybrid drives

Question 28

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

Answer 28

redundant arrays of inexpensive disks (RAID)

Question 29

- 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

Answer 29

file compression/ file decompression

Question 30

what are optical discs?

Answer 30

- can hold over 128gb of data - uses laser beams alters of a plastic or metallic disc to rep data -

Question 31

- 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

Answer 31

true

Question 32

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

Answer 32

true

Question 33

what are compact disc

Answer 33

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

Question 34

what are digital versatile discs ( dvd's)

Answer 34

- 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.

Question 35

what are blu rays discs ( bd's)

Answer 35

-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

Question 36

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

Answer 36

true

Question 37

What are the three basic formats each optical disk have?

Answer 37

- read only, right once and rewritable

Question 38

what is ROM ( read only memory )

Answer 38

- 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

Question 39

what is write once or recordable

Answer 39

- 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

Question 40

what is rewritable ?

Answer 40

- 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.

Question 41

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

Answer 41

-cloud computing

Question 42

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

Answer 42

- Google docs and true

Question 43

What are the benefits cloud storage

Answer 43

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

Question 44

what are the disadvantages of cloud storage

Answer 44

-access, speed, foul security

Question 45

What is mass storage?

Answer 45

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

Question 46

What are mass storage devices?

Answer 46

-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

Question 47

What is an enterprise storage system?

Answer 47

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

Question 48

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

Answer 48

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

Question 49

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

Answer 49

-file servers

Question 50

What is networks attached storage?

Answer 50

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

Question 51

what are RAID systems?

Answer 51

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

Question 52

what is organizational cloud storage?

Answer 52

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

Question 53

what is the storage area network?

Answer 53

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

Question 54

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

Answer 54

true