Question

what is a backup ?
I want this answer fast who will give the answer I will mark he/she brainliest​

Answer 1

Answer:

1.help or support.

2.a copy of a file or other item of data made in case the original is lost or damaged.

Answer 2

Answer:

a back up is a copy of computer data taken and stored else where so that it may be used to restore the original after a data loss event backups can be used to recover data after its loss from data deletion or corruption , or to recover data from an earlier time.