Exercise Chapter 7 - Discovering Computer 2011 - Living in Digital World

Martin - 1601213690

01 PBT

True / False

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


Multiple Choice

1. B ( Transfer rate )
2. C ( longitudinal recording )
3. D ( RAID )
4. D ( all of the above )
5. A ( optical disc )
6. C ( LightScribe )
7. B ( tape library )
8. B ( magnetic stripe )


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 device is a server connected to a network with the sole purpose of providing storage.
    * Six terabytes or more.

2. * Advantages of SAS over parallel SCSI :
       thinner, longer cables, reduced interference, less expensive, support for many more connected devices at once and faster speeds.
    * SAS interfaces support connections to optical disc drives, printers, scanners, digital cameras and other devices.

3. * Multisession disc means we can write the disc in parts.
    * Many people use archive discs and picture discs to preserver their photos.

4. * People use memory cards because memory cards enable mobile users easily to transport digital photos, musics or files to and from mobile devices and computers or other devices.
    * Common types memory cards like microSD, CompactFlash ( CF ), Secure Digital ( SD ), Secure Digital High Capacity ( SDHC ), micro SDHC.
        - MicroSD used on smart phones, portable media players, handheld game consoles, handheld navigation devices.
        - CompactFlash ( CF ) used on digital cameras, smart phones, PDAs, photo printers, portable media players, desktop computers and more.
        - Secure Digital High Capacity ( SDHC ) used on digital cameras.
        - Micro SDHC used on smart phones, portable media players, handheld game consoles and more.

5. * The difference is the size, Microfiche is a small sheet of film and usually about 4x6 inches, Microfilm is a 100-215 foot roll of film.
    * Libraries use these media to store back issues of newspapers, magazines, and genealogy records. Some large organizations use microfilm and microfiche to archive inactive files. Some banks use them to store transactions and canceled checks. The U.S. Armies use them to store personal records.