COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE DEVICES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
700 MB
|
|
|
700 GB
|
|
|
700 KB
|
|
|
700 TB
|
Detailed explanation-1: -A standard 120 mm, 700 MB CD-ROM can actually hold about 703 MB of data with error correction (or 847 MB total). In comparison, a single-layer DVD-ROM can hold 4.7 GB (4.7 × 109 bytes) of error-protected data, more than 6 CD-ROMs.
Detailed explanation-2: -Detailed Solution. The correct answer is 650-700 MB. The data Capacity of a standard size CD ROM is 650-700 MB.
Detailed explanation-3: -A standard compact disc measures 4.7 inches, or 120 millimeters (mm), across, is 1.2 mm thick, weighs between 15 grams and 20 grams, and has a capacity of 80 minutes of audio, or 650 megabytes (MB) to 700 MB of data. A CD works by focusing a 780 nanometer wavelength semiconductor laser onto a single track of the disc.
Detailed explanation-4: -With a storage capacity of 680 megabytes, the CD-ROM found rapid commercial acceptance as an alternative to so-called floppy disks (with a maximum capacity of 1.4 megabytes).
Detailed explanation-5: -In most cases a 700MB CD-R will accommodate up to 80min of audio. 74 minutes is the original Red Book spec (corresponding to 650MB CD-Rs). Commercial CDs have been exceeding that for a long time (in a few exceptional cases slightly over 80min).