what does computer backup mean?

COMPUTER BACKUP as NOUN

Meaning
- (computer science) a copy of a file or directory on a separate storage device
Synonym(s)
- backup (what does backup mean?)
Usage Example(s)
- he made a backup in case the original was accidentally damaged or erased
Hypernyms(s) computer backup is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- duplicate (what does duplicate mean?)
- duplication (what does duplication mean?)
Derived(s)
- back up (what does back up mean?)