A cut at computing? (5)

I believe the answer is:

slash

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'a cut' is the definition.
(slash is a kind of cut)

I cannot understand how the rest of the clue works.

(Other definitions for slash that I've seen before include "Wee stroke < /" , "something between a month and a year" , "Cut crudely" , "Lacerate" , "Cut as with a sword - /" .)

I've seen this clue in the Evening Standard.

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