livingmylivetothefullest

It's about life

Answer of Mr. Tri Djoko Assignment Chapter 7

True False

  1. True
  2. False
  3. False
  4. False
  5. False
  6. True
  7. False
  8. True
  9. True
  10. True
  11. False
  12. False
  13. True

Multiple Choice

  1. B
  2. C
  3. D
  4. D
  5. A
  6. C
  7. B
  8. B

Matching

  1. H
  2. C
  3. A
  4. E
  5. F
  6. J
  7. D
  8. B
  9. I
  10. G

Short Answer

  1. A network attached storage (NAS) device is a
    server connected to a network with the sole purpose
    of providing storage. Any user
    or device connected to the network can access
    files on the NAS device. These devices often use
    a RAID configuration. In the past, enterprises
    were the primary users of NAS. With the introduction
    of smaller, less expensive NAS devices,
    however, some home and small business users
    opt to add up to 6 TB or more of hard disk storage
    space to their network with a NAS device.
  2. Advantages of
    SAS over parallel SCSI include thinner, longer
    cables; reduced interference; less expensive;
    support for many more connected devices at
    once; and faster speeds. SAS interfaces have
    data transfer rates of 750 MBps and higher. In
    addition to hard disks, SAS interfaces support
    connections to optical disc drives, printers,
    scanners, digital cameras, and other devices.
    SAS interfaces usually are compatible with
    devices that have parallel SCSI and SATA
    interfaces. Experts predict that SAS eventually
    will replace parallel SCSI.
  3. A standard
    CD-ROM is called a single-session disc because
    manufacturers write all items on the disc
    at one time.

    A CD-RW (compact disc-rewritable) is an erasable
    multisession disc you can write on multiple
    times. CD-RW overcomes the major disadvantage
    of CD-R because it allows users to write and
    rewrite data, instructions, and infor mation on
    the CD-RW disc multiple times — instead of
    just once. Reliability of the disc tends to drop,
    however, with each successive rewrite.

    Many people use archive discs or Picture CDs
    to preserve their photos. When you post and
    share photos online on a photo sharing community,
    you can choose to save your collection of
    online photos on an archive disc.

  4. Memory cards enable mobile users easily to
    transport digital photos, music, or files to and
    from mobile devices and computers or other
    devices.

    CompactFlash
    (CF)
    512 MB to 100 GB Digital cameras, smart phones, PDAs,
    photo printers, portable media players,
    notebook computers, desktop
    computers

    Secure Digital
    (SD)
    512 MB to 8 GB Digital cameras, digital video cameras,
    smart phones, PDAs, photo printers,
    portable media players
    SDHC 4 to 32 GB Digital cameras
    microSD 1 to 2 GB Smart phones, portable media players,
    handheld game consoles, handheld
    navigation devices
    microSDHC 4 to 16 GB Smart phones, portable media players,
    handheld game consoles, handheld
    navigation devices

  5. Microfilm is a 100- to 215-foot
    roll of fi lm. Microfiche is a small sheet of fi lm, usually
    about 4 3 6 inches.

    Microfi lm and microfi che reduce
    the amount of paper fi rms must handle, are inexpensive,
    and have the longest life of any storage media.
    Enterprises use computers, servers, and networks to
    manage and store huge volumes of data and information.
    In an enterprise, some storage systems can
    provide more than 185 TB of storage, and optical
    disc servers hold hundreds of optical discs.

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This entry was posted on December 6, 2012 by .
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