Question

Highlight the advantages and disadvantages of magnetic disk

Answer 1

Answer:

Advantages of Magnetic disk:

1 Data records can be stored for both sequential and direct accessing.

2 High speed of access and update as no sorting of transactions.

2 On-line disk records of several related files can be updated simultaneously by a single input transaction.

Disadvantage of magnetic disk:

1 Risk of loss of data: Records may be lost in case of writing of new records or drive failure. Therefore, special backup procedures are required for disk records protection. This is not so in the case of magnetic tape records.

Data insecurity: it is easier to maintain the security of magnetic tape files than that of magnetic disk files.

Expensive: Magnetic disks are expensive compared to magnetic tape

Answer 2

Answer:

your answer is here..........