This is one of those words that has developed a specialist meaning in recent years. Originally meaning to supply something (esp. victuals), 'provision' has now come to mean 'prepare a piece of computer hardware for use'.

From dictionary.com:
pro·vi·sion ( P ) Pronunciation Key (pr-vzhn)
n.
The act of supplying or fitting out.
Something provided.
A preparatory action or measure.
provisions A stock of necessary supplies, especially food.
A stipulation or qualification, especially a clause in a document or agreement.

tr.v. pro·vi·sioned, pro·vi·sion·ing, pro·vi·sions
To supply with provisions.

From webopedia.com:
n.) (1) The process of providing users with access to data and technology resources. The term typically is used in reference to enterprise-level resource management. Provisioning can be thought of as a combination of the duties of the human resources and IT departments in an enterprise, where (1) users are given access to data repositories or granted authorization to systems, applications and databases based on a unique user identity, and (2) users are appropriated hardware resources, such as computers, mobile phones and pagers. The process implies that the access rights and privileges are monitored and tracked to ensure the security of an enterprise's resources.