Origin of jiffy18th-c. slang from uncertain or unknown; perhaps
nounpl. jif·fies Informal
Origin of jiffyOrigin unknown
- (colloquial) A very short, unspecified length of time.
- I'll be back in a jiffy.
- (computing) A unit of time defined by the frequency of its basic timer; historically, and by convention, 0.01 seconds, but some operating systems use other values.
- (electronics) The time between alternating current power cycles (1/60 or 1/50 of a second)
- (physics) The time taken for light to travel one centimetre in a vacuum (sometimes one foot, or sometimes the width of a nucleon)
jiffy - Computer Definition
A fraction of time that has numerous interpretations depending on who uses it. It may refer to one computer clock cycle, one nanosecond, one millisecond or one AC power cycle. There may be others. See nanosecond.