What is computer security?
The protection of computer's data, information, softwareand hardware from being damagedor lost is calledcomputer security.
Why do we need to defrag a hard disk?
We need to defrag a hard disk because:
- To analyze the disk and rearrange the fragmented files.
- To reduce/control fragmentation.
- To increase the performance of disk operation.
- To increase the contiguous spaces on the disks.