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Why is it necessary to format a magnetic disk before it can be used?


Why should a hard disk be defragmented regularly?


Why is data storage on a hard disk organised in cylinders?


Define the following disc terminologies.

a)  Tracks

Sectors


How many floppy disks can contain the same amount of information in a standard 750MB CD?


What is the storage capacity of a standard 3z floppy disk?


What is the main difference between a floppy disk and a compact disc taking into consideration

method of storage?


State two advantages of dot matrix printers.


Create a table, stating the basic principle by which the given printers operate: Inkjet, Laser and Dot Matrix


a)        How does the size of a main memory influence a computer's performance?


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