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CS 115 Computer Science > Chapter 8 Checkpoint > Flashcards

Chapter 8 Checkpoint Flashcards

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1
Q

True or False: storage device can be categorized as input or output devices

A

False

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2
Q

True or False: a storage medium is volatile; that is, items stored on it remain intact even when you turn off a computer or mobile device

A

False

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3
Q

True or False: compared with the access time of memory, the access time of storage devices is slow

A

True

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4
Q

True or False: because of current standards, head crashes no longer occur

A

False

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5
Q

True or False: while encrypted files offer greater security than unencrypted files, an operating system may require more time to open and access encrypted files

A

True

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6
Q

True or False: the transfer rate of external hard drives usually is slower than that of internal hard drives

A

True

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7
Q

True or False: solid-state media is more durable and shock resistant than other types of media, such as magnetic hard disks or optical discs, because it contains no moving parts

A

False

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8
Q

True or False: like a hard disk, you regularly should defragment an SSD to increase access time

A

False

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9
Q

True or False: when you are finished using a USB flash drive, simply remove it from the USB port

A

False

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10
Q

True or False: mini discs require a separate mini disc drive; that is, they do not work in standard-sized optical disc drives

A

False

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11
Q

True or False: with serial transfers, data is sent one bit at a time

A

True

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12
Q

True or False: an active RFID tag contains a battery than runs the chip’s circuitry and broadcasts a signal to the RFID reader; because they are so small, they are so small, they can be embedded in skin

A

False

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13
Q

______ ____ measures the amount of time it takes a storage device to locate an item on a storage medium and/or the time required to deliver an item from memory to the processor.

A

Access Time

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14
Q

A(n) _____ ____ is a storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information.

A

hard disk

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15
Q

A hard disk’s storage locations consist of wedge-shaped sections, which break the tracks into small arcs called ________

A

sectors

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16
Q

_____ ______, sometimes called a buffer, consists of a memory chip(s) on a hard disk that stores frequently accessed items, such as data, instructions, and information.

A

Disk cache

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17
Q

A disc on which you can write multiple times sometimes is called a __________ disc.

A

multisession

18
Q

The process of copying audio and/or video data from a purchased disc and saving it on your own media is called ________.

A

ripping

19
Q

A selective backup sometimes called a(n) _______ backup.

A

partial

20
Q

Enterprise storage often uses ________ technology as the interface that connects the devices to the network because it has much faster transmission rates than SCSI.

A

Fibre Channel

21
Q

process of transferring data, instructions, and information from memory to a storage medium

A

writing

22
Q

process of transferring data, instructions, and information from a storage medium into memory

A

reading

23
Q

the number of bytes a storage medium can hold

A

capacity

24
Q

the number of bits in an area on a storage medium

A

density

25
Q

storage method in which the magnetic particles are aligned vertically to a disk’s surface, making much greater storage capacities

A

perpendicular recording

26
Q

storage method in which the magnetic particles are aligned horizontally around a disk’s surface

A

longitudinal recording

27
Q

flash memory chip type that consists entirely of electronic components, such as integrated circuits, and contains no moving parts

A

solid-state media

28
Q

special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a drive to and from the system bus and other components in the computer

A

controller

29
Q

the simplest RAID storage design, which writes data on two disks at the same time to duplicate the data

A

mirroring

30
Q

storage technique in which a device is able to locate a particular data item or file immediately, without having to move consecutively through items stored in front of the desired item or file

A

random access

31
Q

Differentiate between volatile and nonvolatile memory.

A

Volatile memory holds data and instructions temporarily, while nonvolatile memory remains intact even when you turn off a computer or mobile device.

32
Q

Is a screen display volatile or nonvolatile?

A

volatile

33
Q

How does the access time of storage compare with the access time of memory?

A

Access time of storage tends to be slower than access time of memory.

34
Q

At what speeds do they access items?

A

Transfer rate is the speed with which data, instructions, and information transfer to and from a device. Transfer rates for storage are stated in KBps (kilobytes per second), MBps (megabytes per second), and GBps (gigabytes per second).

35
Q

How does the transfer rate of external hard drives compare to that of internal hard drives?

A

The transfer rate of external hard drives is usually slower than that of internal hard drives.

36
Q

List some advantages of external hard drives.

A

1) Transport a large number of files
2) Back up important files or an entire internal hard drive
3) Easily store large audio and video files
4) Secure your data
5) Add storage space to a mobile computer, such as a laptop or tablet
6) Add storage space to a desktop without having to open the case or connect to a network

37
Q

What is the life span of a memory card?

A

Depending on the card, manufacturers claim their media can last from 10 to 100 years with proper care.

38
Q

List ways to care for a memory card.

A

1) Do not bend the card
2) Avoid dropping the card
3) Keep cards away from direct sunlight
4) Do not expose cards to extreme temperatures
5) Do not remove the card while data is transferring to or from it

39
Q

Describe differences between microfilm and microfiche.

A

Microfilm is a 100- to 215-foot roll of film.

Microfiche is a small sheet of film, usually about 4 x 6 inches.

40
Q

What are some advantages of using microfilm and microfiche for storage?

A

1) Greatly reduces the amount of paper that firms must handle
2) Inexpensive
3) Have the longest life of any storage media

CS 115 Computer Science (30 decks)

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