blank medium

blank medium

[¦blaŋk ′mēd·ē·əm]
(computer science)
An empty position on the medium concerned, such as a column without holes on a punch tape, used to indicate a blank character. Also known as blank form.
References in periodicals archive ?
At each predetermined sample time intervals (5, 10, 15, 20, 30, 45 and 60 minutes), 5 mL of the sample was taken, and 5 mL of blank medium was replaced.
One is that the per-megabyte cost of the typical blank medium ($10) is less than 2 cents.