Quarantining in computer terms essentially means the same thing, however can be applied into two contexts.

Quarantining in human terms is the isolation of a person into a sterile environment, where the effects of whatever they are infected with cannot be passed on or do any damage - within computing this is much the same.

On your local PC, a file may be said to be placed in quarantine if an anti-virus program has flagged it as infected, meaning it is stored within a secure area so that it cannot cause any further damage to other files.

In networking terms, a PC may be placed into 'network isolation' or 'network quarantine' if it is believed to be infected with a virus or other malware, ensuring that this cannot spread to other machines on a network.

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