Backup vs Null - What's the difference?
backup | null |
A reserve or substitute.
(computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged.
An accumulation of material that halts the flow or movement of something.
(law enforcement) reinforcements
Standby, reserve or extra.
(computing) That is intended as a backup.
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
One of the beads in nulled work.
(statistics) null hypothesis
Having no validity, "null and void"
insignificant
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
As nouns the difference between backup and null
is that backup is a reserve or substitute while null is zero, nil; the cardinal number before einn.As an adjective backup
is standby, reserve or extra.backup
English
Alternative forms
* back-upNoun
(en noun)- If the goalkeeper is injured, we have a backup .
- After the power failure, we had to restore the database from backup .
- The blockage caused a backup in the plumbing.
- He's got a gun - you better send for backup .
Synonyms
* (reserve ): reserve, stand-in, spare, substitute * (computing: copy of a file or record ): * (accumulation of material that halts flow ): block, blockageAdjective
(-)- I am only a backup player.
- Make a backup copy of that file.
Synonyms
* (reserve) extra, reserve, spare, standbyUsage notes
Back-up'' is an alternative spelling of backup. Both spellings are used as either a noun or an adjective. The verb ''back up is always spelled as two words and never with a hyphen.null
English
Noun
(en noun)- (Francis Bacon)
- Since no date of birth was entered for the patient, his age is null .
Adjective
(en adjective)- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.