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.
The average of 13 numbers is 10.The average of first 6 numbers is 8 and that of the last 6 numbers is 10. What will be the 13th number?
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The total number of students in class A and B is 72. The number of students in A is 40% more than that in B. The average marks of students in B are 50% ...
If average weight of a class is ‘y’ kg. If a new student weighing 21 kg took admission, then the average weight is increases by 1 kg. If the...
If the average of 7 back-to-back numbers is 65, find the sum of the first and last numbers.
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