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5.3 Questions with complete solution

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5.3 Questions with complete solution 5.3 Compact Disc (CD) - correct answer CDs were first developed to store digital music. Later, the CD technology was adapted to store digital computer data. A CD: Can hold 74 to 80 minutes of audio Is 120 millimeters in diameter Is 1.2 millimeters thick...

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  • November 13, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • 53
  • 53 questions with complete solution

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5.3
Compact Disc (CD) - correct answer ✔CDs were first developed to store
digital music. Later, the CD technology was adapted to store digital computer
data. A CD:
Can hold 74 to 80 minutes of audio
Is 120 millimeters in diameter
Is 1.2 millimeters thick


CD-ROM stands for compact disc read-only memory. CD-ROMs are identical
in appearance to audio CDs, and data is stored and retrieved in a very similar
manner. CD-ROMs:
Have lands and pits and use reflective light to interpret the data on the disc.
Hold about 737 MB of data with error correction or 847 MB total.
Transfers data at a rate of 150 KBps.
Drive speeds are measured as multiples of this original speed. To calculate an
estimate of your CD-ROM drives transfer rate, multiply its speed by 150
kilobyte (1x = 150 KBps, 2x drive = 300 KBps, 4x drive = 600 KBps, 72x =
10,800 KBps).


CD-RW stands for Compact Disc-ReWritable.
CD-RW can be written, read many times, erased, and rewritten.
CD-RW has a capacity of about 650 MB.
CD-RW is a removable hard drive, because you can insert the disc into the
disc drive on one PC, add and delete data, eject it, and insert it into another
disc drive on another system and have all your data immediately accessible.
CD-RW drives can burn or write to CD-RW discs, erase CD-RW discs, and
read a CD-ROM disc.

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