Question
Which of the following is not a magnetic
disk?Solution
A DVD (Digital Versatile Disc) is an optical storage medium, not a magnetic disk. Magnetic disks like Winchester disks, Zip disks, and Disk packs store data magnetically, while DVDs use laser technology to read/write data. Knowledge Booster: 1. Magnetic disks are rewritable and provide random access to data. 2. DVDs are used for multimedia and data distribution. 3. Winchester disks are an older form of hard disks. 4. Zip disks were used for high-capacity storage but are now obsolete.
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What is the difference between 3/5 of 150 and 1/2 of 300?
If the square root of 1024 is added to 30% of a number we get 4 less than 2/5th of the number. What is 3/8th of the number?
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